It's just a tune.... the M4 GTS same S55 gives you 500hp
Stage II from Alex alpine or BM3 are more impressive.
Can not justify the price... i will wait for the G82 m4
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M4 F82, MG, stage 2+, ER catless DP, Akra, Armytrix, BMS intake, ER charge pipes, Ohlins R&T, GTS/CS hood, GTS flash, EDC CS, 763M CS rims, LCI taillights and LCI LED adaptive headlights
M5 F10, Singapore grey, stage 2
E92 335i RB upgrade turbo & FBO
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