Thunder header exhaust

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Black Heat Shields for Thundercone Slip-Ons - 1353B Thunderheader. $198.10. Part #: 252132 Mfg Part #: 1353B. Add to compare. Results per Page. Viewing Results 1 - 5 of 5. Shop Thunderheader for your 2021 Harley-Davidson Softail Low Rider S - …Unlike Thunderheader, RB Racing makes several different pipes. So to ask for a comparison of a Thunderheader to an RB Racing pipe is almost like asking to compare a Mustang to a Chevy. There is a bit of information missing. If you have read the RB Racing website you know there are at least three different 2-1 pipes: the ProStock, …I headed out to Kingman, Arizona to the Pyland Compound to created a top mount exhaust bracket for my Thunderheader. Rather than doing the tradition bracket... The anti-reversion design of the Thunderheader exhaust system prevents reverse flow through the system, which can negatively impact performance and throttle response. As the reverse flow enters the collector, the diffuser and pyramidal trap work together to impede the reverse flow, giving the exhaust valve ample time to close. Chrome X-Series Exhaust System - 1073X Thunderheader. $1,899.00 Part #: 4409869 Mfg Part #: 1073X. Add to compare exact fit (4) Black X ...

Buy It Now. +$22.05 shipping. Sponsored. 05 Harley VROD VRSCSE Screamin Eagle THUNDERHEADER Exhaust Head Pipe Muffler. ⭐ eBay's #1 Source for Used Powersports Parts ⭐ . Pre-Owned. $779.99. suncoastcyclesports (162,327) 98.9%. List price: $896.99 13% off. Black 2 into 1 X-Series Exhaust System (w/o Saddlebag Bracket) - 1364XB Thunderheader. $1,839.00. Part #: 4410859 Mfg Part #: 1364XB. Add to compare. Results per Page. Viewing Results 1 - 26 of 26. Shop Thunderheader Exhaust Systems at Dennis Kirk. Best selection, low prices & orders over $89 ship free.THUNDERHEADER EXHAUST - FXR THUNDERHEADER. Ramjet's has been selling Thunderheaders for nearly 30 years! Shortly after being introduced to the market in the late '80s, Thunderheader 2:1 exh... View full details Original price $1,049.99 - Original price $1,099.99 Original price. $1,049.99 ...The anti-reversion design of the Thunderheader exhaust system prevents reverse flow through the system, which can negatively impact performance and throttle response. As the reverse flow enters the collector, the diffuser and pyramidal trap work together to impede the reverse flow, giving the exhaust valve ample time to close.If you’re experiencing social exhaustion, you might feel like withdrawing completely. Here’s how recognize signs of introvert burnout and recover from it. Social exhaustion can mak...1395 posts · Joined 2009. #5 · Nov 15, 2011. Fat cat hands down is best all around, i ran a thunder header for yrs, but got the money and got a better exhaust, thunder headers do well but usually have a nasty dip at around 2-2500 rpm and then pick back up. Have the dyno charts to prove the fat cat is smoother and higher output power and trq.

XL 883 Custom XLH 883 Hugger XL Sportster XL 1200C Custom XL 1200S Sport XL 1200 Roadster XL 1200N Nightster Add-On Falsee System for X-SERIES - 1075XFB Thunderheader. $599.00. Part #: 4410982 Mfg Part #: 1075XFB. Add to compare. Results per Page. Viewing Results 1 - 9 of 9. Shop Thunderheader Mufflers/Slip-ons at Dennis Kirk. Best selection, low prices & orders over $89 ship free. We Ship Today! We manufacture 2-1/4”, 2-1/2”, and 3” inlet sizes for both straight and angled cut performance tips. To get more information, answers to your questions, or anything else, e-mail us at [email protected]. Our team would be glad to assist you. At Thunder Exhaust, we offer standout, race-inspired designs which can be put on any vehicle ... Stainless Steel Wire Exhaust Port Gaskets and Heavy-Duty Hex Nuts - 65324-83-KW2 Genuine James. $22.46 Part #: 4403144 Mfg Part #: 65324-83-KW2. exact fit (15) Graphite Wire ... X-Series Exhaust System - 1074X Thunderheader. $1,656.00 Part …

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Heat Shield Set for 2 into 1 Exhaust System 2014-2020 H-D Sportster - Forward Controls - Chrome Thunderheader. $161.60 $404.00. Thunderheader was one of the first companies in the aftermarket exhaust world for Harley's. After 30 years, there is still just one conclusion: The Thunderheader just works. 2 into 1 High Performance Exhaust System - 1016 Thunderheader. $1,079.00. Part #: H44013 Mfg Part #: 1016. Add to compare. Results per Page. Viewing Results 1 - 1 of 1. Shop for Thunderheader Harley-Davidson FXR Exhaust at Dennis Kirk. Best selection, lowest prices, plus orders over $89 ship free. We Ship Today! Increased horsepower & unmistakable THUNDERHEADER™ sound. Year. Fitment. Chrome. Black. 2000-2006. All model Softails. Sold Seperately - Heat Shields 1305 (top rear), 1306 (top front), & 1207 (collector) 1027. Get ready to experience unparalleled performance with the Thunderheader Long Style High-Performace 2-Into-1 Exhaust System with Heat Shields . This innovative exhaust system is designed to give you maximum horsepower without sacrificing low-end torque.

125 posts · Joined 2011. #3 · Mar 26, 2012. Thunder Headers = great sounding exhaust and power. Another option for the shark is using thunder cones, that's what i have now behind my fuel-moto 2-1-2. Power is very good, and the sound is fantastic (i drown out all of my buddies that have the 2-1 th) Check out my pic.Redthunder is the perfect combination of sound and performance. Ever since our inception, our R&D team have consistently engineered high quality exhaust systems for enthusiasts who want a no-nonsense exhaust system that will perform and produce a superior sound, wherever and whenever. Redthunder products are truly one-of-a-kind.1970-1983. Fits all models without floorboards. Sold Seperately - Heat Shields # 1088 (top rear), 1098 (top front), & 1090 (collector) 1020. 1020B. Heat Shield set of 3. 1120. 1120B. Thunderheader™ Exhaust Systems are legal for CLOSED …May 4, 2016 · American Thunder Header-Back Exhaust System 1967-1968 GM Kit Includes: Flowmaster Header Back Exhaust System - 389-817129 JEGS Ceramic Coated Long Tube Headers - 555-30051. GM Camaro/Firebird V8. Black Heat Shields for Thundercone Slip-Ons - 1166B Thunderheader. $187.20. Part #: 252134 Mfg Part #: 1166B. Results per Page. Viewing Results 1 - 7 of 7. Prev. Shop for Thunderheader Exhaust for your 2022 Harley-Davidson Road Glide Special - FLTRXS at …We manufacture 2-1/4”, 2-1/2”, and 3” inlet sizes for both straight and angled cut performance tips. To get more information, answers to your questions, or anything else, e-mail us at [email protected]. Our team would be glad to assist you. At Thunder Exhaust, we offer standout, race-inspired designs which can be put on any vehicle ...Featuring a 2-into-1 design with a patented collector, this exhaust system directs spent exhaust gases in a spiral motion through four acoustical dampening chambers. This unique design enhances exhaust scavenging, effectively eliminating back pressure and improving overall engine performance.Black X-Series Exhaust System - 1073XB Thunderheader. $1,839.00. Part #: 4409870 Mfg Part #: 1073XB. Add to compare. Results per Page. Viewing Results 1 - 2 of 2. Shop for Thunderheader Exhaust for your 2022 Harley-Davidson Road Glide ST - …Thunderheader head pipes are tuned to the proper length and diameter to produce maximum horsepower and an excellent torque curve. With a patented collector design, only Thunderheader systems can produce their power, torque and sound.Exhaust System, American Thunder, Header-Back, Stainless Steel, Ford, Standard Cab, Kit See More Specifications | Check the Fit. Flowmaster American Thunder Exhaust Systems 817938 FLO-817938. 5 out of 5 stars. Part Number: FLO-817938. Estimated Ship Date: Monday 5/6/2024. $764.95. Overview.

Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024SB Thunderheader. $1268.10. Part #: 4408739Mfg Part #: 1024SB. (2) Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S Thunderheader. $1302.30. Part #: 4408740Mfg Part #: 1054S. Black Long Style High-Performance 2-Into …

XL 883 Custom XLH 883 Hugger XL Sportster XL 1200C Custom XL 1200S Sport XL 1200 Roadster XL 1200N Nightster Thunder and lightning are not the same phenomenon, though both are caused by the same event. As a cloud equalizes its electric charge with the ground, the current must pass through...Thunderheader Chrome 2 into 1 X-Series High Exhaust System. Our X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our 2" headpipe, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson's Milwaukee-Eight™ engine. Includes full coverage heat shields. 18mm and 12mm O2 …Black Heat Shields for Thundercone Slip-Ons - 1353B Thunderheader. $211.50. Part #: 252132 Mfg Part #: 1353B. Add to compare. Results per Page. Viewing Results 1 - 40 of 53. Shop the best selection of Thunderheader Motorcycle … Heat Shield Set for 2 into 1 Exhaust System 2014-2020 H-D Sportster - Forward Controls - Chrome Thunderheader. $161.60 $404.00. Thunderheader was one of the first companies in the aftermarket exhaust world for Harley's. After 30 years, there is still just one conclusion: The Thunderheader just works. The Thunderheader Black X-Series Exhaust System comes complete with heat shields and all mounting hardware, ensuring a hassle-free installation process. The package also includes 12mm O2 sensor bungs and pre-installed O2 sensor ports with O2 sensor plugs, making it even easier to fit and modify to match your bike's specifications. Featuring a 2-into-1 design with a patented collector, this exhaust system directs spent exhaust gases in a spiral motion through four acoustical dampening chambers. This unique design enhances exhaust scavenging, effectively eliminating back pressure and improving overall engine performance.The anti-reversion design of the Thunderheader exhaust system prevents reverse flow through the system, which can negatively impact performance and throttle response. As the reverse flow enters the collector, the diffuser and pyramidal trap work together to impede the reverse flow, giving the exhaust valve ample time to close.HARLEY SHOVELHEAD 2 INTO 1 THUNDER HEADER EXHAUST PIPE. Opens in a new window or tab. Pre-Owned. $499.00. hillbillymotoparts (1,221) 100%. 0 bids · Time left 2d 8h left (Mon, 04:22 PM) +$38.00 shipping. Sponsored. 2011 Harley Touring FLTRU Road Glide Thunderheader X-Series Exhaust - Read 1074X. Opens in a new window or tab.exact fit. (34) Chrome Thundercone Slip-On Mufflers - 1061 Thunderheader. $795.00. Part #: H25010 Mfg Part #: 1061. Add to compare. Results per Page. Viewing Results 1 - 5 of 5. Shop for Thunderheader Exhaust for your 2014 Harley-Davidson Street Glide Special - FLHXS at Dennis Kirk.

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Flowmaster 17742K1 - Exhaust System Kit 1973-1987 GM Truck. (1) $1,263.74. Flowmaster 17742K - Exhaust System Kit 1973-1987 GM Truck. (0) $1,075.94. Flowmaster 817937 - American Thunder Header-Back Exhaust System 1963-1966 GM C10/1000 Series Pickup Truck 2WD V8, Short and Long Bed.Thunder header Go to thier website, there is a cutawy drawing of the pipe in action. I have sold a couple of hundred of TH's and everyone has been real pleased with them. Like was stated above, a properly made 2 into 1 will scavenge exhaust an actually will create more torque, and TH does the best job of that.Flowmaster Inc. The Performance Technology Company is a pioneer in the design, manufacturing and distribution of performance exhaust systems / kits for cars, pick-up trucks, muscle cars, foreign cars, SUVs, diesel trucks and many other vehicles. We have over 350 exhaust systems / kits available for different year, make and model applications.Find Flowmaster Stainless Steel American Thunder Exhaust Systems and get Free Shipping on Orders Over $109 at Summit Racing! Flowmaster Stainless Steel American Thunder exhaust systems have been designed with the latest exhaust technology available. Through this technology, you will experience improvements in acceleration, …THUNDERHEADER EXHAUST - TOURING. by THUNDERHEADER. $1,437.99 - $1,919.99. From $129.79/mo with. Check your purchasing power. Ramjet's has been selling Thunderheaders for nearly 30 years! Shortly after being introduced to the market in the late '80s, Thunderheader 2:1 exhaust systems became THE performance exhaust system for your Harley-Davidson.Thunderheader 2 into 1 High Performance Exhaust System. ThunderHeader head pipes have been tuned to the proper length and diameter to produce maximum horsepower and a excellent torque curve. A patented collector is used. The collector is designed to direct spent gases through four acoustical dampening chambers.Exhaust Systems and Heat Shield Sets. FXR model years 1987-1994 with Center Contols. Re-jet carburetor as necessary. Increased horsepower & unmistakable THUNDERHEADER™ sound. Fits models with stock center pegs. Thunderheader™ Exhaust Systems are legal for CLOSED-COURSE COMPETITION use only. 2-into-1 systems with patented collector design that directs spent exhaust gases in a spiral motion through four acoustical damping chambers. Exhaust travels through these chambers at high velocity to scavenge spent exhaust gases from the combustion chamber and bring in a fresh charge of air/fuel mixture. Anti-reversion design works to impede ... Description. Thunderheader X Series M8 Softail. Designed to give maximum horsepower without sacrificing low-end torque. 2-into-1 systems with patented collector design that directs spent exhaust gases in a spiral motion through four acoustical damping chambers. Exhaust travels through these chambers at high velocity to scavenge spent exhaust ...Thunder Exhaust System Co., Ltd. is Taiwan supplier and manufacturer in Automobile industry market since 1995. THUNDER has been offering our customers high quality Exhaust, Manifold, Header, Muffler, Silencer, Rear Muffler, Catback, Catalytic, Turbo Manifold, Inter Pipe. With both advanced technology and 19 years experience, …Chrome Thundercone Slip-On Mufflers - 1061 Thunderheader. $795.00. Part #: H25010 Mfg Part #: 1061. Add to compare. Results per Page. Viewing Results 1 - 5 of 5. Shop for Thunderheader Exhaust for your 2008 Harley-Davidson Street Glide (EFI) - …What does an automotive exhaust system do? Read about the purpose of your car's exhaust system at HowStuffWorks. Advertisement Truthfully, an individual car's emissions are relativ... ….

THUNDER is a high-quality Exhaust, Manifold, Header, Muffler, Silencer, Rear Muffler, Catback, Catalytic, Turbo Manifold, Inter Pipe manufacturer from Taiwan since 1995. Thunder Exhaust System Co., Ltd. is a professional Exhaust System Manufacturer in Taiwan, providing Exhaust Muffler for Automobile and Motorcycle use.Thunder and lightning are not the same phenomenon, though both are caused by the same event. As a cloud equalizes its electric charge with the ground, the current must pass through...Find many great new & used options and get the best deals for Flowmaster 17129 American Thunder Header-Back Exhaust System - Dual at the best online prices at eBay! Free shipping for many products!The exhaust system is mounted to a rubber mounted powertrain then mounted to the frame with a rubber mount, a flat strap of steel and a little p-clamp. We're not dogging our friends at Thunderheader, the set up worked for a long time and it’s an inexpensive solution.Ever have a prospect struggle to make up their mind about a product? Introducing decision fatigue. Trusted by business builders worldwide, the HubSpot Blogs are your number-one sou...New NOS Thunderheader Harley Davidson Chrome thunder header exhaust pipe 120134. $875.00. $46.00 shipping. Thunderheader 20 1/2 in. Heat Shield for Slip-Ons and Mufflers - 1238. $113.40. Thunderheader Chrome Heat Shields for Thundercone Slip-Ons - 1166. $211.50. Only 1 left! Thunderheader Mid Rear/Top Front 9 in. Heat Shield - 1093.Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024SB Thunderheader. $1268.10. Part #: 4408739Mfg Part #: 1024SB. (2) Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S Thunderheader. $1302.30. Part #: 4408740Mfg Part #: 1054S. Black Long Style High-Performance 2-Into-1 Exhaust ...Here is the video of the first start up of the new Thunderheader X-series 2 INTO 1 exhaust system for my 2022 Lowrider ST. This is part number 1364XB. Accord... Thunder header exhaust, Upgrade your motorcycle with the Thunderheader 2 into 1 High Performance Exhaust System - 1026 and experience the ultimate combination of power, torque, and …, THUNDERHEADER EXHAUST - FXR. by THUNDERHEADER. $1,049.99 - $1,099.99. From $96.30/mo with. Check your purchasing power. Ramjet's has been selling Thunderheaders for nearly 30 years! Shortly after being introduced to the market in the late '80s, Thunderheader 2:1 exhaust systems became THE performance exhaust system for your Harley-Davidson., Thunderheader Racing Products, Richmond, California. 8,966 likes · 3 talking about this. www.thunderheader.net , 125 posts · Joined 2011. #3 · Mar 26, 2012. Thunder Headers = great sounding exhaust and power. Another option for the shark is using thunder cones, that's what i have now behind my fuel-moto 2-1-2. Power is very good, and the sound is fantastic (i drown out all of my buddies that have the 2-1 th) Check out my pic., Thunderheader X Series The new THUNDERHEADER X-SERIES for Touring is our large diameter exhaust specifically designed for big cubic inch engines (107" and larger), built to produce big numbers. The X-SERIES is designed with 2" primary tubes with a 14 degree transition chamber to allow more exhaust flow. Our unique pate, Flowmaster Inc. The Performance Technology Company is a pioneer in the design, manufacturing and distribution of performance exhaust systems / kits for cars, pick-up trucks, muscle cars, foreign cars, SUVs, diesel trucks and many other vehicles. We have over 350 exhaust systems / kits available for different year, make and model applications., Find Flowmaster Stainless Steel American Thunder Exhaust Systems and get Free Shipping on Orders Over $109 at Summit Racing! Flowmaster Stainless Steel American Thunder exhaust systems have been designed with the latest exhaust technology available. Through this technology, you will experience improvements in acceleration, …, The Thunderheader Black X-Series Exhaust System comes complete with heat shields and all mounting hardware, ensuring a hassle-free installation process. The package also includes 12mm O2 sensor bungs and pre-installed O2 sensor ports with O2 sensor plugs, making it even easier to fit and modify to match your bike's specifications., Bassani Road Rage 2 - Dyna - Chrome. $936.95. Bassani. Speed-Kings Cycle has a variety of exhaust systems for your Harley Dyna. From thunder header brackets to 2 into 1 systems, we've got everything you need., The anti-reversion design of the Thunderheader exhaust system prevents reverse flow through the system, which can negatively impact performance and throttle response. As the reverse flow enters the collector, the …, Add to compare. (14) 2 into 1 High Performance Exhaust System - 1057 Thunderheader. $1,109.00. Part #: 251460 Mfg Part #: 1057. Add to compare. Results per Page. Viewing Results 1 - 40 of 52. Shop the best selection of Thunderheader Harley-Davidson products at Dennis Kirk for the lowest prices., 1395 posts · Joined 2009. #5 · Nov 15, 2011. Fat cat hands down is best all around, i ran a thunder header for yrs, but got the money and got a better exhaust, thunder headers do well but usually have a nasty dip at around 2-2500 rpm and then pick back up. Have the dyno charts to prove the fat cat is smoother and higher output power …, Chrome 20 1/2 in. Heat Shield for Slip-Ons and Mufflers -... Thunderheader. $115.00. Part #: 251652 Mfg Part #: 1238. Add to compare. Find the Thunderheader Chrome Thundercone Slip-On Mufflers at Dennis Kirk. Shop our complete selection of Harley-Davidson Motorcycle parts and accessories including the Thunderheader Chrome …, The new THUNDERHEADER X-SERIES for Touring is our large diameter exhaust specifically designed for big cubic inch engines (107" and larger), built to produce big numbers. The X-SERIES is designed with 2" primary tubes with a 14 degree transition chamber to allow more exhaust flow. Our unique patented baffle in conjunction with our trademark ..., THUNDER is a high-quality Exhaust, Manifold, Header, Muffler, Silencer, Rear Muffler, Catback, Catalytic, Turbo Manifold, Inter Pipe manufacturer from Taiwan since 1995. Thunder Exhaust System Co., Ltd. is a professional Exhaust System Manufacturer in Taiwan, providing Exhaust Muffler for Automobile and Motorcycle use. We also provide …, Find Flowmaster Stainless Steel American Thunder Exhaust Systems and get Free Shipping on Orders Over $109 at Summit Racing! Flowmaster Stainless Steel American Thunder exhaust systems have been designed with the latest exhaust technology available. Through this technology, you will experience improvements in acceleration, …, The anti-reversion design of the Thunderheader exhaust system prevents reverse flow through the system, which can negatively impact performance and throttle response. As the reverse flow enters the collector, the …, Thunderheader Exhaust Systems 2022 Harley-Davidson Softail Low Rider S - FXLRS; Thunderheader Exhaust Systems for your 2022 Harley-Davidson Softail Low Rider S - FXLRS. Filter Results. View Results Exhaust Systems Thunderheader Clear All; Availability In Stock Only (3) Ride Types ..., 2 into 1 High Performance Exhaust System - 1026 Thunderheader. $1,079.00. Part #: H44023 Mfg Part #: 1026. Add to compare. Results per Page. Viewing Results 1 - 2 of 2. Shop for Thunderheader Exhaust for your 2002 Harley-Davidson Dyna Wide Glide - FXDWG at Dennis Kirk., Introducing the Thunderheader 2 into 1 High Performance Exhaust System - 1039, the ultimate exhaust upgrade for your motorcycle. With its cutting-edge design and advanced features, this exhaust system is designed to deliver maximum horsepower and torque without compromising on performance. The new design for 2020 ensures compatibility with both ..., Chrome Thundercone Slip-On Mufflers - 1061 Thunderheader. $795.00. Part #: H25010 Mfg Part #: 1061. Add to compare. Results per Page. Viewing Results 1 - 5 of 5. Shop for Thunderheader Exhaust for your 2015 Harley-Davidson Street Glide Special - FLHXS at Dennis Kirk., Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024SB Thunderheader. $1268.10. Part #: 4408739Mfg Part #: 1024SB. (2) Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S Thunderheader. $1302.30. Part #: 4408740Mfg Part #: 1054S. Black Long Style High-Performance 2-Into-1 Exhaust ..., Part #: 4407262 Mfg Part #: 1026B. exact fit. (18) 2 into 1 High Performance Exhaust System - 1026 Thunderheader. $930.60. Part #: H44023 Mfg Part #: 1026. Results per Page. Viewing Results 1 - 2 of 2. Shop for Thunderheader Exhaust for your 2002 Harley-Davidson Dyna Low Rider - FXDL at Dennis Kirk., Home/. The classic sound of a Flowmaster® chambered exhaust, our American Thunder® Series features mufflers tuned to deliver more power, torque, throttle response and mileage. Best of all, these exhaust systems take sedate vehicles and delivers a deep aggressive tone., New NOS Thunderheader Harley Davidson Chrome thunder header exhaust pipe 120134. $875.00. $46.00 shipping. Thunderheader 20 1/2 in. Heat Shield for Slip-Ons and Mufflers - 1238. $113.40. Thunderheader Chrome Heat Shields for Thundercone Slip-Ons - 1166. $211.50. Only 1 left! Thunderheader Mid Rear/Top Front 9 in. Heat Shield - 1093., Upgrade your motorcycle with the Thunderheader 2 into 1 High Performance Exhaust System - 1026 and experience the ultimate combination of power, torque, and …, Black 2-into-1 High Performance Exhaust System - 1039B Thunderheader. $966.60. Part #: 4407264 Mfg Part #: 1039B. Results per Page. Viewing Results 1 - 2 of 2. Shop for Thunderheader Exhaust for your 2017 Harley-Davidson Low Rider S - …, Exhaust Systems and Heat Shield Sets. 2-INTO-1 long style (right side only) for 1984-2016 FLH Models with Big Cubic Inch Engines. Recommended on 113 Cubic Inches and up. Increased horsepower & unmistakable THUNDERHEADER™ sound. 2 INTO 1 long style (right side only). Comes with 18mm & 12mm O2 Sensors. Thunderheader™ Exhaust Systems are legal ..., First, you need to get used to the sound coming off just the right side. With the Fatcats, they have what I would describe as a "burble" on deceleration. It is tuned correctly, its just the nature of a 2:1 pipe I think. The tone of the FC to me is similiar to that of a 70's muscle car header. Deep and throaty., But unless I mention it, folk never notice. Some think I have three pipes. Now that's funny. Stop off connection. Right side bringing both headers into one pipe. Stop off from the left side of the bike. Flowing into the false pipe. A little closer shot of the stop off connection from the right side. 4., Introducing the Thunderheader 2 into 1 High Performance Exhaust System - 1039, the ultimate exhaust upgrade for your motorcycle. With its cutting-edge design and advanced features, this exhaust system is designed to deliver maximum horsepower and torque without compromising on performance. The new design for 2020 ensures compatibility with both ..., Choose the Thunderheader 2-into-1 High Performance Exhaust System and feel the power unleashed. Order now and experience the Thunderheader advantage for yourself! Shop now and elevate your bike's performance to new heights! For heat shields, order the following: 14 in. Top Front: 25-1725. 23 in. Top Rear: 25-1724. 13-1/2 in. Collector - 25-1723., Thunderheader X-Series FLH/FLT M8. $1,448.00. Our X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our 2" headpipe, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson's Milwaukee-Eight™ engine. Comes complete with full coverage heat shields, 18mm and 12mm O2 …