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 lightweight magnesium end cap and a 6063 aluminum muffler. 304 Stainless steel head and mid pipe, welded construction reduces weight (no springs). Removable bolts for easy repacking. Used by ITP Quadcross champion Dustin Nelson.

Model:	< Select One > HONDA COMPLETE EXHAUST, TRX450R '04-05 ( $393.75) HONDA COMPLETE EXHAUST, TRX450R '06-08 ( $393.75) SUZUKI COMPLETE STD EXHAUST, LTR450 '06-07 ( $393.75) YAMAHA SILENCER, YFZ450 '04-08 ( $251.25)
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