Everyday Low Price: $689.99
Gold Club Price: What's This? $620.99
J&P Part: 443-590
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This product was proudly made in the USA
Additional oversized shipping charges will be applied for expedited shipments within the contiguous U.S. Shipping charges outside the contiguous U.S. are calculated by weight and dimension during checkout. Due to state regulations we cannot ship this item to the state of California.
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Amazing and easy to assemble!
exelent, bolted right on, runs great
Good fit and took care of the reversion problem on my 93" shovel.
looks good haven't gotton the motor to gether yet,for the sound and performance.nice chrome finisk
once again thunderheader works great
great exhaust system, good price. i wont run anything else
Wow what a difference a thunder header made on my 01 dyna... It plus theRSD judge Venturi air cleaner awoke my sled right up... Thanks J&P Cycles
Wolfs MC Repairs Posted:
I have a Thunderheader on my '88 FXSTC, along with other modifications, and had it dynoed at the local HD Dealership. It dynoed real sweet. I have a '00 FLSTC which I am ready for a new exhaust system. I will go with a Thunderheader! I have tried multiple exhaust systems, and this system seems to do the best for performance (in my opinion). Wolf
Love the Thunder Header! :)
Had to replace my Thunderheader when it just plain turned to dust. (It was very old) The only choice was another Thunderheader. I run a EV-27 and E carb with this pipe and everyone thinks I have installed a big bore kit. This header really works.
Great sound and performance. Fit and finish is a little rough, definately not show quality. Good for street use
Great system. The sound alone is worth every penny
I just had the motor on my '97 Harley rebuilt. The Thunderheader 2into1 was recommended by my friend that did the work. I replaced the Vance and Hines longshots I had on the bike. So far, I'm extremely happy with the performance and sound. I'm just finishing up on the 500 mile breakin period. They look awesome on my "new" Harley. Thanks....Jerry
awesome. my '92 dresser never sounded better than this.
My thunderheaders make my bike run smoother, doesn't pop anymore, and has more power.
I like the sound a lot. My hubby used to have T-headers on his bike - I miss the sound of it - until now!
north ferry choppers Posted:
great pipe makes alot of power
I have the 2 into 1 on my 06 Street Glide! I love the way it sounds, and it's just got the low end torque that makes you wanna keep on that roll! You won't be disappointed! Invest
Nothing like the sound of a Thunderheader
Installed on a 1989FLHTC. Good instructions, good hardware and good fitment of the details. The sound is authentic.
I love the sound and increase in horsepower. Both my bikes have Thunderheaders. I will never buy any thing else.
Awesome sound. Looks great on bike.
Greta Sound!!! Love these pipes!
Added a good amount of power. Looks and sounds great. Perfect pipe for my superglide.
The best exhaust for Dyna in term of performance, sound and value for money. A must have for outlaw-style dyna, if you know what I mean.
Best Bolt On Header For More HP&Sound,Out There -Thank You Thunderheader,J&P-Very Very Happy! Makes Riding The Bike More Fun! I Got Five-CRAGAR"
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Note: Please see U.S. EPA and your respective state and local regulations to confirm noise and emission compliance.Important Exhaust Notes:• Note: With any new exhaust, we recommend changes to carburetor jetting or use of an aftermarket fuel injection control module.• There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Blueing is caused by tuning characteristics, cam timing, carburetor jetting, overheating, etc. and is not caused by defective manufacturing. No refunds on exhaust pipes once motorcycle is started unless there’s a manufacturer’s defect.• Flanges and retaining rings are not included with most aftermarket exhaust for 1984-2013 Evolution and Twin Cam models. Re-use your existing hardware, or purchase replacement hardware.