BMW F-Series M135i (2014) – Developed 315 to 378 BHP with torque 332 to 414 Lbft.
Not an easy one to tune, this as the ECU is bolted to the underside of the Inlet manifold (which requires removal) for cooling of the ECU.
A timely and tricky procedure, however just look at the gains – Celtic Tuning’s development refining this engine to its full potential – Impressive to say the least…..
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