S-Type Stainless Steel Cat-Back Exhaust System with Quad Rear Exit by Borla.

When you want the best performing, best sounding, and highest quality exhaust system, you want Borla Exhaust. Borla straight-through mufflers and mandrel-bent exhaust tubes are custom-tuned to deliver the most horsepower possible, with a throaty, aggressive sound during acceleration and a definite performance tone at cruise.

Specifications:

• Exhaust System Type: Cat-Back
• Exhaust Tubing Material: Stainless Steel
• Exit Location: Quad Rear
• Main Tubing Diameter: 3" to 2.25"
• Exhaust System Sound: Aggressive / Loud
• Tip Quantity: 4
• Tip Material: Stainless Steel
• Tip Outlet Diameter: 3.5"
• Tip Length: 4.5"
• Tip Shape: Round
• Tip Style: Rolled Long
• Tip Cut Type: Angle-Cut

Features:

• Aggressive Plus Sound
• Increased exhaust flow for better performance
• Horsepower and torque increased by 7 – 10%
• Better fuel economy at cruising speeds
• Definite performance tone at cruise with a throaty, aggressive sound during acceleration
• Custom designed for each application
• A patented straight-through muffler design reduces backpressure while absorbing sound waves
• Mandrel-bent stainless steel tubes with diameters optimized for reduced restriction while maintaining exhaust gas speed
• Made from the finest austenitic stainless steel for long-lasting durability
• All welded construction

Includes:

• Front pipe assembly
• Intermediate pipe assembly
• Muffler assembly
• (2) 3.00" Clamp

Fitment:

• 2008-2014 Subaru Impreza WRX STI
• 2011-2014 Subaru Impreza WRX