[gookies5]

Hey OP, just following up here on your post and wondering if/what you decided on doing with your exhaust. I'm considering doing my 4.3L Ecotec as well.

 

[gookies5]

I ended up doing a borla pro xs. It sounds defiantly better than the Flow master super10, much quieter inside the cab.

Possibly able to post some sound clips? I"m leaning heavily towards the Spintech 6000 at the moment, 3in 3out with a 3.5tip, but I've heard fantastic things about Borla