What size shims are needed to lower the M brace properly?

 

In my case 3mm were enough

 

Mine is damaged from scraping...not too bad though. I figure as long as there is no exhaust leak then there is no need to replace them =)

 

Washers work well too. I believe I used 4 per bolt.

 

My "M-Brace" doesn't hit? Doug from Crawford is going to send me a new cat for my drivers side & told me it looks like I hot something ??? but for the life of me I can not figure out what?? Doug was awsome....to ++ for him!!

 

BlueBlur: in my case, the Crawford cats+NISMO exhaust DID hit the M brace and got it fixed with washers. You can't miss the sound the hitting makes because it drives you crazy! I can also confrim Doug is a good guy!

 

If anyone wants a pair of crawford cats, i have them available, USED. Bought it less than 6 months ago, pretty sure its new version. No cracks 350 shipped!