^^^

IMO, a (U-bolt with rubber flex connection) at some stratigic points would help...

I'm basically going to re-anaylize my setup when the Nismo exhaust goes on in a few weeks. I'll figure out what needs to be done at that point. So far things seem to be holding up just fine.

Zquicksilver

 

It is an issue on both OEM & after market because it doesn't have any support as you pointed out in the middle on the exhaut flow.

I had the Nismo exhaust & OEM cats & the OEM cats cracked all the way around at the weld to the point the mounting piece on the side of the cat that connects it to the "U-bracket" was completely seperate from the cat itself & left a hole the size of a Quarter. That is why I went with the Crawfords.

I didn't see any play in the "U-bracket" under the car..just to help you align the bolt into the hole.

It is a flaw in the design as a whole.

 

Custom dual ehaust takes some of the presure off , works well for me ....so far

51k miles
daily driver

 

How is that?

My Borla True Dual doesn't help any based on it's use of OEM hanger positions only.