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So I fit one of these systems to my ep3 today. Odd trying to match up the 70mm pipe with standard cat but got there in the end.This will soon change though. So my problem is the whole system being quite a bit bigger now sits high and vibrates in a few places under the chassis. The rubbers seem to hold it but if I take the rear 2 and 3 hole one toward the back it doesn't really drop it where it needs to drop.It would seem that the down pipe is dictating where the majority of the system sits. Do any after market 4-2-1 manifolds sit lower as this is the route I guess I'll go down to try and match up the flange sizes.