1 IE Catback Exhaust System For Audi B9 B9 5 S4 Integrated Engineering
claricegandy55 edited this page 1 month ago

The APR Catback Exhaust System personalizes your vehicle’s looks, sound and performance. You get the only the best with SPD's 3" resonator delete pipes. These 304 Stainless Steel pipes are .. SPD's high performance stage 1 resonator cat-back pipe replaces your factory resonator pipe with a t..

We match the exit size to the size exhaust you ordered, so if you are ordering this after the fact, please include the exhaust size you have in your order. Replaces the OEM catalytic converter with a free flowing pipe. Completely straight through (no bottleneck), free flowing mini-muffler and pipe. Replaces the OEM catalytic converter with a 3" metal substrate core high-flow performance cat and our mini muffler. The metal core is our highest flowing cat available and it will&nbsp