Hello All,
I am wondering what the cat back exhaust sounds like with a 3.7 I5? If anyone has installed the CB on their ride, let me know.
Thanks,
Jeff

 

jpmodom - welcome to the forums. I think you'll find the answers you need here. I, along with others, have posted those answers here. Try the search function at the top.

https://www.hummerforums.com/m_107906/tm.htm
https://www.hummerforums.com/m_54533/tm.htm
https://www.hummerforums.com/m_151752/tm.htm

 

Yo Jeff. Welcome to the forums!!

I have the sam MagnaFlow Cat Back as bb in the last linked thread by Alrock above. RE: Magnaflow Sound clip!!!!

There a a bunch of H3 Cat Back threads here. Grab a cold one and have a read, enjoy. I really do like mine, they take a while to break in and
sound their best I found.

 

I purchased the Billy Boat(B&B) cat back exhaust from GMPartsDirect.com when it was on sale for less than $600. I love the sound! It carries a GM part number with no questions about warranty.

 

i love my dual cat back by magnaflow.i got mine for $375 brand new and shiped. i got it on sale and then and the same time magnaflow had a intstant rebate and it came to a awsome $375 and could not pass that up. i had it a year now and love it.great sound not to loud just perfect.

[IMG]local://upfiles/4035/F6A80C9ACDD748A5977E8EBA736094C3.jpg[/IMG]