Quick question, was wondering if hr cats bolt right on to a 07 coupe rev up?

 

Sad to tell you the answer is no.

 

Thanks man, I appreciate it.

 

HR cats will bolt up to a DE if you ALSO use the HR manifolds/headers. Actually HR cats are required if you do that mod. The HR headers are equal length tubes stock, vs the log style on the DE, so it's a cheap upgrade. Of course most people will say if you're going to go thru the trouble to swapping the headers, might as well purchase an even better aftermarket option.

 

+1, it will be so worth to upgrade to HR engine as well.