Do you mean sidepipes? I'd LOVE to do this almost more than anything on this car. However, I'm not sure it's going to be practical if you plan on running mufflers. The reason is, I believe the fuel tank is right in front of the rear suspension assembly so you'd be running your pipes right next to a plastic (composite) fuel tank :( If someone can get it to work, I'd be all for it, but like I said, I don't think it would be practical...
05 Hummer H2 SUV on OEM Air Ride
Forged 11.1:1 408 LQ4 (K1 crank & rods; Mahle pistons)/CPP LS3 CNC heads/BTR Stage IV LS3 cam and valvetrain/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/e'fan conversion/aluminum radiator/Moroso catchcan/HPTuners by me/LED exterior lighting/Pioneer AVH-5600BHS/Pioneer GM-9601/2-Pioneer TS-W310D4/Obcon Labyrinth dual-12 box/lots of other stuff