We fitted one of our new Garage Whifbitz full stainless exhaust systems to our Whifbitz BMW M4 G82 yesterday. This removes the OPF and cats but has sports cats and resonators fitted to keep the noise levels in check, next step will be to dyno test it this week to see what the difference in power is.
Our car is already running a custom stage 1 map and we’ll be doing some extra tuning now the OPF has gone. Next step after that is catless downpipes and custom ethanol tune to see what this beast can do.
Available on our website to buy here https://www.garagewhifbitz.co.uk/garage-whifbitz-bmw-m4-m3-g-series-stainless-steel-exhaust