![Integrated Engineering Catback Exhaust System | B9 S4 E85 · E86 Z4 25i 2.5L I6 [M54] 1x Front Set of iSWEEP](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/IntegratedEngineeringCatbackExhaustSystemB9S4.png?v=1693693070)
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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
1x Front Set of iSWEEP IS1500
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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
Smooth bellmouth transition for uninterrupted flow
Integrated Engineering Catback Exhaust System | B9 S4 E85 · E86 Z4 25i 2.5L I6 [M54] 1x Front Set of iSWEEPThe 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$ 46353.03
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