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At TRS we love the F8x Generation BMW M3/4. In fact, we love it so much we bought one as a development car. We've developed our own  custom engine tuning, and extensively tested it, on the road, on track, and at the Nürburgring to ensure we were offering the kind of product our customers have come to expect from TRS. 

We also offer GTS gearbox software and xHP gearbox mapping. 

BMW M4 Tuning 

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