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THUNDERHEADER EXHAUST - DYNA

$845.00
COLOR: BLACK

Ramjet's has been selling Thunderheaders for nearly 30 years! Shortly after being introduced to the market in the late 80's, Thunderheader 2:1 exhaust systems became THE performance exhaust system for your Harley-Davidson. Between the unmistakable Thunderheader sound to its seat of the pants, dyno proven performance gains, and its iconic look, a Thunderheader is always an excellent choice!

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. The collector directs spent gases through acoustical dampening chambers, which creates a spiral motion upon exiting the pipes. This also creates an anti-reversion trap to minimize the amount of air rushing back in.


  • Commonly Recognized As The BEST Sounding Exhaust For Harley-Davidson
  • Proven & Noticeable Performance Gains
  • Available In Black or Chrome
  • Heat Shields Available Separately
  • Classic / Performance Look
  • 100% MADE IN THE USA

 

FITS:

91' - 98' Dyna (With Mids & Forwards)

99' - 05' Dyna (With Mids & Forwards)

06' - 17' Dyna (With Mids & Forwards)

 

***Ramjet Thunderheader Brackets are highly recommended over the stock bracket. Available here:

https://www.ramjetracing.com/products/ramjet-99-05-dyna-thunderheader-bracket?variant=23130339377200

 

NOTE: 12' - 17' Dyna models running a Thundermax ECM or aftermarket tuner that uses 18mm O2 sensors will need to use the 06' - 11' Dyna Thunderheader.

NOTE:

DUE TO HIGH DEMAND AND NATIONAL DELAYS WITH ALL COURIER SERVICES, PLEASE ALLOW ALLOW 1-8 WEEKS FOR DELIVERY


DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.

IF FOR RACE OR OFF-HIGHWAY USE OUR CA EXHAUST WAIVER WILL NEED TO BE SIGNED AND RETURNED PRIOR TO SHIPPING. 

CALIFORNIA CARB WAIVER AVAILABLE HERE:

https://cdn.shopify.com/s/files/1/0157/0363/8064/files/CA_CARB_Waiver.pdf?573

THIS ITEM DOES REQUIRE A SHIPPING CHARGE. COSTS WILL BE CALCULATED IN CHECKOUT.