[cannockwolf]

I'm getting the MPE which is not available for EU cars, and I have just realised US cars don't have OPF's and it says for cars without them in the description. Will I have to delete the OPF to use this exhaust? Not sure how it all works together, I believed they were seperate parts of the system.

I've seen on an M4 forum the same Q and they said it doesnt have to be removed. But anybody on here know.

Ive found a few other forums and they all say it works fine, can't find out how to delete this post so will just leave it here with the answer for future searches.