MBRP Street 3in Quad Tip Cat Back Exhaust

2015+ WRX / 2015+ STI

$1,198.22 - $1,309.40

SKU: S48003-PARENTWe price match!


MBRP® Cat-Back Performance Exhaust for Subaru WRX2.0L, Subaru WRX STI 2.5L Models. 3" Cat-Back, Dual Split Rear Exit, T304 Stainless Steel, Street Version and single wall T304 exhaust polished tips.
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MBRP Street 3in Quad Tip Cat Back Exhaust

Introducing the Cat-Back exhaust system for the Subaru WRX 2.0L and the Subaru WRX STI 2.5L by MBRP®. The S4800 Street Pro Series is the perfect balance of Street and Race with sound that makes your hairs stand up. The MBRP® innovative spiral louvered core in the dual muffler design express the totally committed core of the WRX with rich, deep and precision tuned sound. No need to block your ears – it’s like listening to a symphony. The exhaust design and engineering for the S4800304 Cat-Back performance exhaust boasts unrelenting T304 Stainless Steel quality and T304 stainless steel tips. This quality matches the improvement in performance which makes the beating heart of the WRX and the WRX STI beat a little faster, and will surely keep you firmly pinned to your seat.

The S4800304 Cat-Back exhaust is a strong statement of style and personality that will stand out from all the other WRX or WRX STI’ in your city. We build each of our exhaust systems with the highest standards of manufacturing, and with designs that are inherently tough and resilient. The laser etched MBRP® logo on top center of each tip is racing inspired and designed to make a statement. The axle-back solution will immediately take the car sound to a whole new level and will be quick to get noticed in the kiss & ride.

The unique 3” mandrel bent tubing design and muffler and distinct design routing makes this a great upgrade to the Subaru enthusiast and #1 upgrade on the list for any new WRX or WRX STI accessory improvements. With a Lifetime Warranty this makes the S4800304 MBRP® Performance Exhaust a great investment.

MBRP® Cat-Back Performance Exhaust for Subaru WRX2.0L, Subaru WRX STI 2.5L Models. 3" Cat-Back, Dual Split Rear Exit, T304 Stainless Steel, Street Version and single wall T304 exhaust polished tips.


  • Enhanced Sound and Tone of Boxer engine
  • T304 Stainless Steel | PRO Series
  • 3" to Dual 2.5” Mandrel-bent Tubing and unique routing design

Other MBRP Details

MBRP's Pro Series is the best performance exhaust system that money can buy. It is a series designed and built for the serious enthusiast who will settle for nothing less. Constructed from T304 stainless steel it delivers you optimal durability that keeps on looking its best. Easy to clean and maintain this is the product of choice for owners of lifted vehicles, show trucks or who operate in severe environments.

Built to Perform

MBRP's performance exhaust systems are built to perform. Designed to maximize exhaust flow and minimize exhaust temperatures your truck will use less gas, last longer and perform better. Every system we sell has been built to the most exacting standards in the industry.

Dyno Proven

Your MBRP performance gas exhaust system has undergone countless hours on our in-house Mustang 1100 AWD-SE Chassis Dynamometer, hundreds of miles on road and track and numerous tweaks and modifications to get the most out of your truck. From the vehicle specific muffler design to the fully mandrel bent tubing to minimal bend degree angles, your MBRP performance system gets exhaust out fast. An MBRP performance exhaust system is the starting point to getting the most from cold air intakes, programmers, modules and downloaders.

Easy Installation

MBRP systems are as much fun to install as to drive with on your truck. Bolt-on, no weld design makes installation a no hassle one and a half to two hour project. Everything is direct fit to the OEM hangers and you get all the clamps and parts you will need.

Sound & Style

Performance is one thing but at MBRP we believe that appearance and sound are just as important. Every MBRP performance exhaust system has been specifically tuned to get the optimal sound from your pickup. With our stamped logo on the tip and our unmistakable styling, there's no question that you have the hottest performance exhaust on the road - MBRP.

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  1. By Anonymous June 17, 2022

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