Garage Auto Sports

GAS Catback Exhaust System, B8/B8.5 S4/S5

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Tip Choice: Polished

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The only exhaust system in the world for the B8 3.0T platform that does not cause drone, rasp, or other undesired noises from your V6T.

Unlike every other exhaust company on the market, we didn't simply copy and paste the OEM design while relying on fancy muffler/resonator construction to ineffectively get rid of rasp in a flawed system. We started from the ground up, designing a new proprietary design that eliminates all negative sounds in the system, including the dreaded 3000rpm rattle! 

Our catback system has been designed to work with stock or aftermarket downpipes, such as our GAS 3.0T Downpipe Set, as well as other popular options on the market. Flow and power are not compromised, and our system has been tested in-house to over 600bhp on our Stage 2+ E40 setup with no sandblasting or added back-pressure.

This system (like all of our products) is hand-tig welded, back-purged, and hand-finished in T304 to ensure that the system will outlast your vehicle! All flanges are cut in-house from T304 stainless to ensure consistent quality and belt sanded flat after welding to prevent leaks.

The system will come with 4" (100mm) tips with options to be finished in polished, Cerakote black, or a custom finish to be discussed before construction. 

Currently, this system is available for in-house installation only. By placing the order online, you are reserving to have a system built by our fabrication team. Once the order is placed, one of our team members will reach out to coordinate installation.