Estimated horsepower gain 12.51 hp @ 4998 rpm replacement filter rp-5285 air filter color red air filter material cotton gauze air filter outlet shape round clamps included 4 clamp material stainless steel clamp style worm gear carb eo number d-269-61 couplers included 2 type gen ii estimated torque gain 16.6 lbft product style 57 series fipk intake pipe color / finish black intake pipe material high-density cross-linked polyethylene mounting hardware included yes warranty no-hassle lifetime limited