Primary Clutch / Oversize Rollers Roller Size:Standard Rollers When you hit higher RPM

When you hit higher RPM this muffler has an exceptionally good tone without being obnoxious

Leak-Proof Seal: Supplied with heavy-duty stainless steel T-Clamps to guarantee a rock-solid

EFI controller required when used with our Fatt Azz Single Pipe

Same great performance and sound as our standard Powder Lite mufflers

Primary Clutch / Oversize Rollers Roller Size:Standard Rollers When you hit higher RPMTune your TRA to perfection with these stock or oversize rollers for your primary. Stong construction will not wear out quickly and roll extremely smooth. Choose from stock (10 gram), 1mm oversize (12. 5 gram), or 2mm oversize (15. 5 gram). Sold as a set of three.