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Because the secondary O2 sensors will read the wrong values once these components are fitted
The flat polyurethane insert installed from BMW does not match the M3/4’s aerodynamically sculpted exterior
Alternative to 789802
Replaces OEM Part Number: 17118672103
On the track or in spirited road use
Evolve Remap - Mini F54 | F55 | F56 JCW (LCI) (B48) E39 Because the secondary O2 sensorsThis ECU remap is for installation at Evolve Our JCW remap produces additional power through careful tuning of the factory DME tables. Various elements such as ignition timing, fuel delivery, boost pressure and part throttles are reworked to create performance gains that takes a stock JCW upto 305bhp significantly more if you have other modifications. Our engine tuning philosophy is an improvement in driveability and enjoyment. We do this by giving an