I am considering getting the ZZP Down pipe for my SS/SC. The question I have if i have a GMPP performance exhaust with a ZZP header what exit flange should I order to connect to the GMPP exhaust 3" or 2.5"?

Thanx in advance!

 

You need the 2.5" exit

 

2.5 exit!! I have this set up and I love it. Sounds mean.

 

it will sound nice and as staed u need a 2.5

 

Thanx Guys!

 

i got the exact setup u will like it.

 

I loved the sound of my 2.5" catted DP with my GMPP touring Exhaust . I was perfect for me , I just wished GM would have made the catback 2.5"