IRP FA20 Forged Piston Set 10.5CR T3 Max RPM = 9500

Max RPM = 9500

A 4mm reduction in shift throw in each direction has been achieved while retaining the quality and fitment of the original shifter

Seat Pressure = 94lbs @ 1

STI's duracon shift knob has had its shape finely tuned to provide an exquisite feel and allow for effortless shift motion from any position or angle

IRP FA20 Forged Piston Set 10.5CR T3 Max RPM = 9500DESIGN INNOVATION AND ADVANCED TECHNOLOGY RalliSpec has adopted IRP across our engine product line owing to their advanced design features and unmatched quality control protocols. Every piston starts with the latest material technology from the highest quality sources. IRP forgings are 100% machined meaning all surfaces are machined using the latest generation 5 axis CNC equipment in a temperature controlled environment ensuring precise dimensional