This 135i came in quite poorly. The car wasn't driving properly and after a dyno we found it had 310hp even with a stage 1 map and catback exhaust system fitted. Considering stock puts out 320, we did some investigation. After diagnosis, the VVT motor and eccentric shaft were worn. We installed a new motor, shaft and then our customer opted for some upgrades - Wagner Tuning catless downpipe, BMS Induction system, CSF Intercooler, FTP Motorsport uprated diverter valve in conjunction with a FTP charge pipe and boost pipe. After installation and a Stage 2 remap, the car produced a healthy 397hp.

https://www.youtube.com/watch?v=T67cJwUIUmE&feature=youtu.be

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