Borla Unequal Length Header Subaru WRX 2002-2014 / STI 2004-2021 / Legacy GT 2005-2012 vendor_Tomei which makes the pulley more

which makes the pulley more than 4lbs lighter then the stock crank pulley

Engine diagnostics and troubleshooting

HPS's Ferro-Carbon compound provides your Subaru with increased stopping power

All hardware & hoses for installation

Borla Unequal Length Header Subaru WRX 2002-2014 / STI 2004-2021 / Legacy GT 2005-2012 vendor_Tomei which makes the pulley morePart #: 17217 The Borla Unequal Length Header for the WRX STI is constructed from T 304 stainless steel to give you the best in performance and durability. Borla's header will increase low end torque and throttle response through out the RPM range. Borla products are backed by a million mile warranty, so this is the only header you will ever have to buy for your WRX or STI. This header is designed to bolt directly to a stock or aftermarket uppipe; we