The Subaru WRX STI Performance Exhaust from Mishimoto is a cat-back system designed to enhance the driving experience of your Subaru WRX/STI from 2015 to 2021. Engineered to deliver a more aggressive exhaust note, this polished exhaust system not only improves sound but also optimizes performance.

Crafted with meticulous precision, the Mishimoto cat-back exhaust is constructed from high-quality 304 stainless steel, ensuring durability and resistance to corrosion. The system features a unique four-piece design with oval mufflers that prevent highway drone, while delivering an aggressive exhaust tone. It's designed for quick and easy installation, under one hour, providing noticeable gains of up to 9 whp and 8 wtq using 93 octane fuel, all while maintaining safe AFRs. The exhaust flow is smooth and efficient, from the 3.0-inch 2-bolt exhaust flange to the 2.25-inch y-section, worked into harmony by precision TIG welding.

Features

• Dyno-proven gains of up to 9 whp and 8 wtq
• 304 stainless steel construction with precision TIG welding
• Quad 3.5" staggered double-wall polished tips
• Includes all stainless steel hardware with anti-rust guarantee
• Mishimoto Lifetime Warranty

For automotive enthusiasts, the Mishimoto Performance Exhaust offers the perfect blend of sound and performance improvement. Whether you're revving on a track or city road, experience the thrill of an enhanced exhaust system. For more information or to discuss your customization needs, call us at 512-982-9393 for our Austin location or 562-981-6800 in Los Angeles. We have expert installation and customization services available. We encourage customers considering multiple items to reach out for potential shipping discounts and remember, we install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov