Our desire and passion is to create high performance exhaust pipes for Harley, cruisers, sport bikes, Honda, Kawasaki, Yamaha, Star and Suzuki motorcycles that increase performance, quality and design.
Complete Exhaust Catalog »
Review complete catalog including dyno charts, pictures and sound files.
POWER & TORQUE GAINThe Buell Solution »
15% TORQUE & HP GAINFLH HP Kit PLUS Dual Exhaust»
Dual Cans CBR 1000RR Dual Pipe»
D&D PartnersBuilding Power for Your Motocycle
48.5 MPG Super Boss Improves MPG & HP»
Chris Carr RacingChris Carr Signs with D&D»
XR1200 HOP-UP 12% More Power » BOSS Fat Cat - 2:1 Concentric Baffle drops 10db at full throttle & improves peak torque. Get the details.
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Release the Beast Within - Full system pumps out the power and produces a satisfying rumble with increased torque and horsepower across the rpm range.
GoPerformance, Exhaust Tone & Economy - Chris Carr talks about his favorite exhaust, a D&D. Checkout our Harley pipes.
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The Yamaha R6 has become a rolling icon - best viewed at any angle. The new D&D slip-on pipe screams bad-to-the-bone.
November 19, 2009
Jeff Schneider, Harley stunt riding & drifting ace, spools it up at a practice session for ILLconduct.com. His Exhaust... A Fat Cat custom shorty. continued »
November 17, 2009
I'm still in love with the downright fantastic simplicity of the Evo engine, the balance, the beauty, and the history. The Evo is the final refinement of the classic Knucklehead engine. continued »
November 9, 2009
The pipe is lighter than my stock one, and it installed easily. I changed the main jet from 178 to 182 and lowered the clip down one notch on the needle. continued »
October 26, 2009
Increased performance across the rpm range. Designed with an equal length cut for a custom look. No tuner needed when used with stock air cleaner. continued »
October 26, 2009
The Brando Bike - The new bike's namesake landed on North American shores in 1950 and received rave reviews from motorcyclists for its styling, agility and speed and later appeared alongside Marlon Brando in the blockbuster movie "The Wild One". continued »