Korsh Turbo Back Exhaust - Subaru WRX STI 01-07 (Catted) 75W-90 2600cc – Maximum flow for

2600cc – Maximum flow for extreme power builds and race applications

Custom made high quality silicone hoses with 4 layers of polyester/aramid reinforcement

The original equipment (OE) inlets feature connection sizes of only 61mm and 72mm

Use of the standard leaf springs

The design of the airboxes—including their shape

Korsh Turbo Back Exhaust - Subaru WRX STI 01-07 (Catted) 75W-90 2600cc – Maximum flow forComplete turbo back exhaust system engineered specifically for Subaru WRX and STI models from 2001 to 2007. This high performance system combines a high flow catted downpipe with a premium catback exhaust for maximum flow and power gains while maintaining emissions compliance. Street legal complete exhaust solution. CONTENTS Catted Downpipe: Cast head design, high flow 200 cell catalytic converter, precision mandrel bends Catback Exhaust: 304