MBRP 15-20 Audi S3 T304 Stainless Steel Cat - Active 2018-audi-a7-quattro-esi8811056 and easiest to use ECU

and easiest to use ECU upgrade solution for your BMW

Retains OEM fuel level sender maintains factory functionality

Compatible with standard fuel-safe hose and clamps

Phenolic thermal insulating spacers

MBRP 15-20 Audi S3 T304 Stainless Steel Cat - Active 2018-audi-a7-quattro-esi8811056 and easiest to use ECUTHE ONLY EXHAUST YOU"LL EVER NEED MBRP Armor Pro Series exhaust systems are backed by a Lifetime Warranty and crafted out of T304 Stainless Steel the most durable material grade that money can buy. The T304 Stainless Steel tubing is easy to clean and maintain. Its the obvious choice for you if you operate your vehicle in extreme conditions. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends.