Anyone who buys a new 1-Series M Coupé is obviously a performance enthusiast, and Milltek has been working closely with one of its main distributors, MRC Tuning, to further improve the performance of this already fast sports coupé.

Milltek’s development car had been treated to a mild remap before its new secondary cat-back exhaust system was fitted. With the standard exhaust it was dyno-tested at 355bhp/600Nm (it leaves BMW’s factory in Munich with 340bhp/450Nm), but with the new system the car showed a 5bhp/5Nm gain.

Then the car was tested with the full Milltek primary cat-back system, which removes the cars’ secondary catalysts. This delivered even bigger power gains and better throttle response, equating to a very impressive 16bhp power increase and an extra 16Nm of torque.

Both these systems are now available at your local Milltek dealer – call 01332 227280 for further info.