So I have an issue where the part where the hfc meets the midpipe is hitting the subframe if I go over bumps. I think it is a fitment issue due to the mix of parts I have.

I have a AMS downpipe, Cobb SS HFC, and MXP exhaust (midpipe + catback). I didn't have this issue when I had a stock widemouth + cobb dowpipe, Cobb SS HFC, and MXP exahust (midpipe + catback). It seems like going to the AMS downpipe somehow pulled the exhaust forward by about half a inch? and that causes it to hit the subframe over bumps. I was wondering if switching to the AMS HFC will help, but I was looking at pictures and it looks like a straight pipe. I was wondering if that will cause it's own issues with fitment (Cobb SS HFC has a bend). Does anyone have any ideas? Any help would be appreciated.

 

bump!

 

The AMS stuff fits like factory.

Is the exhaust hitting the rear sub frame?

 

It's not the exhaust hitting, it's the flange of the cat and midpipe hitting the subframe because it seems its 1/2 inch too forward.

 

The flange is part of the exhaust is it not? Ergo, the exhaust is hitting the subframe.

Good luck...