4-Stroke: Stage 3 – Factory Upgrade

Get the best out of your bike with the Racline Pro Circuit Factory Package

The Package Includes:
– Pro Circuit T6 Pro exhaust system
– Vortex ECU X10 Maps
– Pro Circuit High-comp performance piston kit
– Pro Circuit Performance Cams
– Pro Circuit Performance Valve Spring kit
– Pro Circuit Performance Cylinder head porting & valve seat

To Order your Racline Pro Circuit Factory Package give us a call or email us with your bike model and year and we will get back to you with a quote.

SKU: 4S-STAGE-3 Categories: ,


We have a wide variety of Pro Circuit after markets parts available for all different makes and models. If you looking for suspension, engine and or any Pro Circuit part give guys a call today. If you want to see some of the products we offer view our catalog.