Dubach Racing

78-07313

10-13 YAMAHA YZ450F: DR.D NS-4 Stainless Steel Slip-On Exhaust With Aluminum Can

Complete Systems

Every DR.D exhaust is built, developed, and tested by Doug Dubach.
DR.D pours more time into track testing, with more experience, than any other company.
DR.D exhausts are not mass produced, each exhaust is unique and each has been developed on the track to best improve the bike's power character.
You won't find 'universal' components, such as heavy springs and gaskets, in their construction because cutting corners, on the track or in production, is never beneficial.
Take it from the man who has spent more testing time on a Honda, Suzuki, KTM, Kawasaki, and Yamaha than all others combined.

If it passes Dubach's test, it will pass yours.Performance improvements over stock system.Features stainless steel mid pipe and aluminum can.Lightweight magnesium end cap; riveted on for increased durability.Welded construction for reduced weight.Removable bolts at inlet cap for easy repacking.Includes roll style packing; extends packing life.All Stainless Steel / Aluminum slip-ons come with a U.S.F.S.-approved spark arrestor screen.The most popular exhaust in the DR.D line-up. The DR.D SS/AL (Stainless Steel Tubing / Aluminum Can) is the exhaust chosen by more magazine test riders than any other; those who can ride with anything they want, choose DR.D. Lighter than the stock exhaust, the SS/AL features durable 304 stainless steel, TIG-welded construction and billet aluminum mounting directly on the muffler can. Uniquely track tested to improve hit, delivery, and pulling power with substantial performance gains while reducing weight over the stock system. Welded construction, magnesium end cap, removable bolts (not rivets) at the inlet cap for easy repacking, and stepped perforated core (reduced heat) for increased durability set DR.D apart in construction, and on the track.

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