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 Superbike technology and styling      Trapezoidal-shaped sleeve      Large volume of packing material      Straight baffle for ample flow      Innovative end-cap      Removable Low-Volume Insert     &nbs..

Yoshimura's R-77D three quarter exhaust is a dual-outlet version of the race-proven R-77. It offers greater gains in low and mid range power without restrictive inserts. The R-77D requires no inserts or restrictions, increasing muffler packing life and providing five percent more open exhaust..