FMIC Intercooler Kit For 94-01 Audi A4 B5 1.8T Engine Bolt fitment. 2.5" Cold pipe with MAF sensor flange 2" Hot pipe, with BOV Pipe that connects to Factory BOV. Kit comes with bolt on mounting brackets. Needs to trim Factory Bumper where the foglights are. High Quality Mandrel bent Aluminum Pipes, Excellent Flow.