The Dubach Racing Development (Dr. D) exhaust systems increase power throughout the RPM range. The unique attributes of the Dr. D's Step System allows for a more efficient intake stroke. It does this by resisting the reflective exhaust pulse during the intake/exhaust overlap. Features a stainless steel header, mid pipe, and aluminum muffler. Removable bolts at inlet cap for easy repacking. Includes USFS approved spark arrestor screen.

Model:	< Select One > HONDA STD EXHAUST, METRO/RUCKUS '05-08 ( $187.50) HONDA STD SILENCER, TRX450R '04-05 ( $251.25) HONDA STD SILENCER, TRX250EX '01-06 ( $251.25) HONDA STD SILENCER, TRX400EX '99-08 ( $251.25) HONDA STD SILENCER, RINCON 650/680 '03-07 ( $251.25) SUZUKI STD SILENCER, LTZ/KFX400 '03-08 ( $251.25) KAWASAKI STDSILENCER,KFX450 '08 ( $251.25) KAWASAKI STDSILENCER,LTZ/KFX400 '03-08 ( $251.25) KAWASAKI HEADPIPE,KFX450 '08 ( $142.50) YAMAHA STD SILENCER, YFZ450 '04-08 ( $251.25) YAMAHA STD SILENCER, RAPTOR 700 '06-08 ( $251.25) YAMAHA STD SILENCER, RAPTOR 660 '01-05 ( $251.25) YAMAHA STD SILENCER, RAPTOR 250 '08 ( $251.25) YAMAHA STD SILENCER, RAPTOR 350 '05-08 ( $251.25) YAMAHA STD SILENCER, GRIZZLY 660 '02-06 ( $251.25)
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