2008-2014 Subaru WRX STI Cat-Back Exhaust (BOR140312)

Description

This quad-exit cat-back system for the 2008-2014 Subaru WRX STI upgrades the exhaust plumbing from 2.5" to 3" diameter for increased airflow, with horsepower gains of roughly 7 to 10 percent. The muffler is tucked higher than OE for a 1.75" clearance gain, and the system sheds about 8 lbs over stock.

It is built from T-304 stainless steel with double-walled rolled-edge polished tips, enhancing the STI's signature rumble. Borla's patented straight-through design eliminates power-robbing baffles for a bolt-on install.

Features

• Quad-exit cat-back design
• 3" diameter tubing, up from 2.5" OE
• Approximately 7 to 10 percent horsepower gain
• 1.75" added ground clearance and roughly 8 lbs lighter
• T-304 stainless with polished double-walled rolled-edge tips
• Backed by a Million-Mile Warranty