Originally Posted by BowtieGuy
You are correct. It will probably be Borla. They design most of the exhausts for GMPP. I have discovered though that GM is sometimes more expensive than the regular aftermarket, without the performance to compare.
Yeah, I can't relate to GMPP parts because I've never obtained them for my cars. At the time, there weren't really any choices I was looking for for them so I just looked toward the aftermarket. Hopefully GMPP will support the car better this time - it seems like they are from statements posted here and elsewhere.
05 Hummer H2 SUV on OEM Air Ride
Forged 11.4:1 408 LQ4 (K1 crank & rods; Mahle pistons)/CPP LS3 CNC heads/BTR Stage IV LS3 cam/home ported L92 intake manifold/ported 90mm TB/custom Volant CAI/mid-length headers/AFE dual 3" CB/Corvette Servo/el cheapo lift/Cognito UCAs/Sphon poly adjustable TA/Sphon adjustable rear LCAs/e'fan conversion/DirtyMax radiator/Moroso catchcan/HPTuners/HID conversion/LED exterior lighting/LED interior accents/Autometer Cobalts/AEM WBPioneer AVH-5600BHS/Pioneer GM-9601/2-Pioneer TS-W310D4s/Obcon Labyrinth dual-12 box/lots of other little stuff