Cometic Harley-Davidson Milwaukee 8 Base Gasket .063inAl, 4.500in Big Bore, 4.715inId 1981-yamaha-xs650-base-esi9437160 20 Hrs Runtime

20 Hrs Runtime

Featuring one (1) 1/8" NPT port for connecting a pressure sensor or water methanol injection

Convert from OE-style tips to AWE's signature 102mm double-walled slash-cut tips

(2) 12-point cap screws

4-1/2" Diameter Polished 304 Stainless Steel Exhaust Tip

Cometic Harley-Davidson Milwaukee 8 Base Gasket .063inAl, 4.500in Big Bore, 4.715inId 1981-yamaha-xs650-base-esi9437160 20 Hrs RuntimeAll of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns All of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns Cometic utlizes their in house dynamometers and engine assembly rooms to ensure quality and reliability Cometic uses it's EST "Extreme Sealing Technology" philosophy while making every gasket Cometic offers MLS