Borla 3.0" S-Type Cat-Back Exhaust for 2015-2021 Subaru WRX STI

Product Description

This BORLA® Cat-Back™ system is tuned for performance and sound for both the 2.0L engine in the WRX and the 2.5L engine in the STI. Our S-Type sound level is designed to bring out the Subaru Boxer engine rumble and provides an aggressive sound without the drone. This system features 3.5" quad polished T-304 stainless steel tips, but is also available with high temperature black coated on T-304 stainless steel tips. For ease of installation, this Cat-Back™ is a direct bolt on part and does not require cutting. Like all BORLA® exhaust products, each system is handmade in the USA by master craftspeople and features premium, high-quality T-304 austenitic stainless steel construction, ultra-smooth mandrel bent piping, and a Million-Mile Warranty.

Product Specifications

Product Documents

Installation Guide

Warranty

Product Applications

Brand Information

Borla Performance Industries is the pioneer and leader in the design and manufacture of stainless steel performance exhaust. The number “78” on our race team vehicles pays homage to the year 1978, when we began by building exhaust systems for Rolls-Royce and Ferrari concours classics. Since that day over four decades ago, we have evolved into the premier exhaust brand of today's most popular cars and trucks. Borla is committed to providing world-class exhaust products which surpass the expectations of customers like you. To that end, our facility is complete with a state-of-the-art test and development center where we continually fine-tune manufacturing precision and standards. We have trailblazed a variety of improvements in exhaust design, leading to many US patents for innovative technology and numerous "Best New Product" industry awards.

Unlike any other exhaust, Borla systems are designed from scratch on a vehicle-by-vehicle basis. Every car and truck has unique mechanical and acoustical properties, all taken into account as we spend countless hours optimizing muffler body shapes, internal core configurations, flow dynamics and sound. What’s more, Borla offers you a choice of three exclusive sound technologies — ATAK®, S-Type and Touring — to suit your taste in sound volume and character. It's no wonder that after subjecting a variety of exhaust brands to their ultra-rigorous shaker simulations, heat trials, leak tests and more, top OE vehicle makers like GM, Ford, Toyota and others choose Borla to supply many of their factory-installed aftermarket exhaust systems. The same goes for the world's top engine builders and race teams, who insist on Borla for maximum power and durability. The strength of our welds, precision fit of the slip joints, smooth high-flow mandrel bends and austenitic stainless steel construction (superior to 409 or aluminized steel), all ensure top performance through the most grueling conditions.

On top of numerous other patented technologies, our latest innovations include Polyphonic Harmonizers that use the same dynamics as organ pipes to deliver tuned harmonious sound, and ultra high-flow SwitchFire™ X-Pipes that are so revolutionary they can actually be combined with the stock system to create an entirely new level of affordable sound and performance. In addition to our Cat-Back™ and Axle-Back systems, Borla also offers our exclusive Pro XS mufflers, along with tubing, universal exhaust tips, exhaust polish, our winning XR-1® Raceline mufflers for serious racers, and other components that enable virtually anyone to enjoy the technology, quality and durability of Borla. Restoring a classic? Our CrateMuffler™ line features specialty mufflers that are tuned for specific crate engines, available with multiple sound choices. And speaking of classics, Borla Induction offers high-performance injection kits and accessories ranging from inlet manifolds to all-out racing injection systems for Chevy small block, LS1, LS2, LS7, Coyote, Ford small block, FE, 460, Hemi 6.1 and front-wheel-drive tuner cars.