03 viii with no acd

I got a Megan down pipe a few months ago and when i installed it i couldn’t get the stock spring bolts back in and i had to use spacers on the cross bars.

But that’s not what I’m worried about. This down pipe does touch along my oil pan. I think I’m picking up knock when I get into boost from the downpipe.

Has anyone else had this problem?
It’s a Megan DP and TP with bushure from there back.

I may swap back to see if it fixes my knock issue as there is nothing in the tune/logs that would be causing my issue.

 

Could I have tightened down the dp flange and crushed the doughnut too much to cause this? just thinking out loud.