CP Piston Set 100mm Bore 9:1 CR 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2010 FXT YR_2004 (1) 90 Silicone Upper Hose

(1) 90 Silicone Upper Hose

This Perrin Master Cylinder Brace is engineered for Subaru WRX STI

Positive molding uses extreme pressure to compress the friction material and bond it to the backing plate

and Forester XT owners who demand better drivetrain precision and responsiveness

Whether you’re running stock boost or pushing higher power levels

CP Piston Set 100mm Bore 9:1 CR 2006-2014 WRX / 2004-2021 STI / 2005-2009 LGT / 2004-2010 FXT YR_2004 (1) 90 Silicone Upper HoseEnhance your Subaru WRX STIs engine durability and power with the CP Piston Set featuring a 100mm bore and 9: 1 compression ratio. Designed specifically for 2006 2014 WRX, 2004 2021 STI, 2005 2009 Legacy GT, and 2004 2010 Forester XT models, these forged pistons deliver superior strength and reliability. Perfect for rebuilding your block or upgrading your built engine, they allow you to safely increase boost and extract more power. Crafted from high