AMS Perfomance Uk M3 / M4 Downpipes 


The downpipes are made of T-304 stainless steel unlike all other cheap ones out there.


Will fit the following models:


BMW M3 F80

BMW M4 F82


Some advantages of our Decat pipe:


Better throttle response.

Relief of the turbocharger due to lower temperature and less exhaust back pressure. 

The cylinder charge is increased, which improves performance.


Car feels a lot more free and responsive with this installed and has increased power by 15-20 BHP on test vehicles.

AMS Perfomance Uk M3 / M4 Decat Down pipes


    Our Services


    My Account

    About us

    Padmore Street


    WR1 2PA

    Tel: 01905 724030/29042

    ​Collection and Drop Off


    Mon - Fri: 8.30am - 6pm

    Sat: 8.30am - 2pm

    Sunday: Closed

    Night Drop Off Available



      AMS Garages Limited is registered as a limited company in England and Wales under company number: 09485955

    Copyright © 2019 AMS Performance - Part of The AMS Garages Group,