The D&D Fat Cat 2-into-1 exhaust system is an excellent choice for engines with performance modifications from stock to plus-25% displacement, delivering a torque curve that is high and wide, with a strong top-end pull. Excellent workmanship inside and out; broad power design really shows up on the dyno.

D&D’s philosophy is to trust their own R&D program, developing their product line to reflect what they learn during their countless hours of testing on the D&D dyno. But they didn’t stop after they made big power, they also built systems that are engineered to fit and look great! Inspect a D&D pipe, and you’ll find true craftsmanship—from the hand-ported inlets and collectors, hand-fit heat shields with machined and welded steel clamp brackets, heavy-duty mounting supports and flawless finishes, you’ll know you made the right choice for your Harley®.

All models are available in brilliant chrome or high-temperature black powder coat finish. Includes full-length header heat shields to ensure great looks over the long haul.

Zipper’s stocks Fat Cat pipes with both up and down slashes, equipped with two different baffle designs, wrapped louvered (loud) or big bore (louder).


All 1995-2008 Touring model 2-into-1 Fat Cats are equipped with 18mm oxygen sensor bungs.

Touring model Fat Cats are available with three muffler tip cuts – traditional ‘back-cut’ (longer at the top), ‘slant-cut’ (shorter at the top which follows the saddlebag angle), or straight (bazooka) cut.

For the traditionalist, a non-functional “Ghost” pipe is available for the left side of touring models to keep the dual exhaust look.

This insert raises low end torque while not sacrificing sound level.  It does drop the high end horsepower level slightly on big inch motors (on smaller engines it doesn’t affect hp) and changes the tone of the muffler a bit making it sound more like a deeper version of a Rinehart or RC muffler.

All Exhaust Systems listed on these pages are designed solely for Competition Race Use Only.
Not designed or legal for use on a public highway.

Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.

Weight 1 lbs

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