Primary Clutch / Oversize Rollers Roller Size:1mm Oversize Rollers This kit efficiently puts more

This kit efficiently puts more of your horsepower to the wheels for better performance on hard pack

After intercooler temp - influences timing and desired boost to prevent detonation and pre-ignition

Maintenance-free mechanical style baffle (no packing)

and so will you

and corner fraying caused by high boost levels

Primary Clutch / Oversize Rollers Roller Size:1mm Oversize Rollers This kit efficiently puts moreTune 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.