Manley 99.5mm STD Bore Piston Ring Set Subaru WRX 06-14 / STI 04-21 | 46995DT-4 Keri Monitor Backed by Subaru's OEM quality

Backed by Subaru's OEM quality standards

and the other is they are not optimised for throttle response

These units are constructed from sheet aluminum and mount using OE hardware

-Fuel Filter (-01 Cellulose

Rear Strut Bar for your:

Manley 99.5mm STD Bore Piston Ring Set Subaru WRX 06-14 / STI 04-21 | 46995DT-4 Keri Monitor Backed by Subaru's OEM qualityRestore proper cylinder sealing and maximize engine performance with the Manley Performance 99. 5mm Piston Ring Set. Designed for 99. 5mm bore forged pistons, this complete ring set is ideal for engine rebuilds, high performance street cars, and race applications. Featuring 1. 2mm x 1. 2mm x 2. 0mm file fit rings, it allows engine builders to precisely set ring end gaps based on horsepower, boost levels, and intended engine use. Product Features