Overview

The Perrin Catback Exhaust for Subaru WRX and STI Sedans that features an all stainless steel design, a straight through muffler and a 4 Inch slash cut tip. This adds 15 WHP and brings out the sought after boxer rumble.

Brushed Slash Cut Tip

An over-sized 4" slash cut exhaust tip adds an aggressive look to this impressive system. Perrin exhaust tips are a brushed stainless steel with single wall construction.

Straight Through Muffler

Perrin mufflers and flanges have a true 3" internal diameter for uninterrupted exhaust flow throughout the entire length, not necked down, for ultra smooth transitions throughout the system.

Additional Power

Tests were performed on a Subaru STI 2007 running on stock ECU tune. The exhaust were swapped out in five minutes and re-dynoed Subaru STI 2007 which generated an additional 15WHP and 15ft-lbs of torque.

Finish

Perrin Exhaust systems come with a brushed stainless steel finish featuring TIG welding for precise, clean welds.
These Catback are constructed exclusively of 304 Stainless steel (304SS). 304SS provides high corrosion resistance and can withstand heat upwards of 1,800°F. Other manufacturers utilize cheaper 409 Stainless Steel which will rust and corrode over time. Perrin invested 304SS into this product to provide beautiful and enduring finish and durability.

Clamps

Perrin OEM-Type slip connectors have both slip and twist adjustments to aid in aligning the exhaust and muffler. Perrin slip claims do not require gaskets and are designed for easy adjustments and removal after use.

Features:

• corrosion-resistant 304SS construction
• brushed finish 4" slash-cut exhaust tip
• true 3" internal diameter mufflers and flanges
• additional 15WHP
• additional 15ft-lbs of torque
• package includes: (1) Single-tip Muffler, (1) S Bend Pipe, (1) Mid-pipe, (1) 3" ID Gasket, (2) 3" Couplers, (2) M8 Bolts, (2) M8 Washers, (2) M10 Bolts, (2) M10 Nuts, (4) M10 Washers, Warranty & instructions
• Five Year Warranty

Fitment:

• Subaru WRX 2002-2007
• Subaru STI 2004-2007

Note:

• OFF-ROAD USE ONLY: This product is legal in California only for racing vehicles which may never be used upon a highway. Check your local and federal laws prior to installation.
• PERRIN Performance Five Year Warranty is for the original purchaser that all PERRIN products will be free from defects in material and workmanship within a sixty (60) month period from the date of purchase. Some exclusions apply.