![Integrated Engineering Catback Exhaust System | B9 S4 E85 · E86 Z4 25i 2.5L I6 [M54] No deposits](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/IntegratedEngineeringCatbackExhaustSystemB9S4.png?v=1693693070)
Pay in 4 interest-free payments of $168.88 Learn more
Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
No deposits
There are no thin-sided finicky exhaust clamps found here
separate your Audi from the crowd with your perfect stance
Our latest development includes the addition of the bootmod3 CustomROM features that add advanced end user and tuning features such as map switching
Stage 2 91: up to 26%HP / 28%TQ
Integrated Engineering Catback Exhaust System | B9 S4 E85 · E86 Z4 25i 2.5L I6 [M54] No depositsThe IE Catback Exhaust System for your Audi B9 B9. 5 S4 incorporates our in house engineered DroneTrap technology to deliver a truly aggressive exhaust note without any annoying drone or rasp. Engineered with cutting edge design features, including mandrel bent stainless steel, TIG welding, multi point reinforcements, and oversized quad tips. Experience the elevated and enriched sound your S4 deserves. IE's advanced DroneTrap technology captures the
US$ 23.99
US$ 33.99
US$ 114.90
US$ 34.99
US$ 22.49
