Milltek OPF/GPF Bypass Single Pipe For Milltek Axle Back Only - BMW G80 | G81 M3 | G82 M4 E-AMG (W210) The first dyno chart is

The first dyno chart is from RaceCal in the UK

They do not simply create a muffler or end pipes

Easy to fit

As seen on our own F90 M5 project car 'Lycan'

The resulting performance gains and aesthetics are industry leading for the C7 RS6/RS7

Milltek OPF/GPF Bypass Single Pipe For Milltek Axle Back Only - BMW G80 | G81 M3 | G82 M4 E-AMG (W210) The first dyno chart isFits to OE Downpipes & Milltek Sport OPF GPF Back System Only Requires OPF Bypass Module or Stage 2 ECU Tune Our range of Cat Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and or add a more suitably aggressive tone. All our products are