Just ordered flow master American thunder exhaust!
 

Just ordered flow master American thunder exhaust today. Wondering if anyone else on the forum has this exhaust? It was very affordable...$414.00 including shipping on eBay.
I watched a video on you tube and liked how it sounded...once I get it installed I post a review. Here's where I ordered mine from 03-06 HUMMER H2 CAT-BACK EXHAUST SYSTEM SINGLE EXIT | eBay so anyone have this exhaust? Wondering if it helps gas milage? Wondering if it's gonna add hp? How do you like the sound? Here is the you tube video http://www.youtube.com/watch?v=4BzjR...e_gdata_player

Wow that sounds really good. Did you install yours yet????

Nope...still waiting for it to arrive....getting drop shipped from California. As soon as it arrives I will install & give it a review.

I finally got my exhaust today...install went pretty smooth, however the kit did not include new flange nuts and the old exhaust nuts snapped off...gonna get the right nuts tomorrow...I will post more pics of it installed t that point. I did vice script the flance so I could listen to it...definitely sounds better however I would rather it a hair louder & plan to see if they make a 40 series muffler with 3 1/2 in 3 1/2 out tomorrow... Can't find one online but have a few friends with exhaust shops so I will see. Anyways over all I am very pleased but warn you not a job for someone that is not good at working on cars. Here's a few pics...
more to come https://www.hummerforums.com/forum/m...-install-3620/ https://www.hummerforums.com/forum/m...mer-lift-3621/