Milltek Large Bore Downpipe and Hi-Flow Sports Cat - BMW i8 (2014 - 2020) Vektor we recommend remapping the ECU

we recommend remapping the ECU in order to prevent potential »check engine light« warning signals

Performance can be further increased with the addition of optional evolution link pipe set

the diffuser section in particular leaves something to be desired

Crank Bolt

Compatible with all F90 M5 Models

Milltek Large Bore Downpipe and Hi-Flow Sports Cat - BMW i8 (2014 - 2020) Vektor we recommend remapping the ECUNOT ROAD LEGAL Required ECU Remap Fits to OE and Milltek Sport Cat Back Systems 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 made from 304L Aircraft