Audi B5 S4 Front Mount Intercooler By Mustaqim Jaed at October 09, 2020 Post a Comment This complete upgrade kit for the b5 audi s4 is a thorough redesign of the oem audi intercooler system completely re engineered for high performance. S4 with rs6 egt sensors. 2001 B5 S4 Avant Ko4 … audi b5 s4 front mount intercooler