[OKGMC4]

Firewall it is. Made a bracket that uses two of the old battery tray bolt locations to mount the tank. AN hose kit on the way. My S pipe fits and the AFE filter I got fits perfect in the space but….don’t like how it will be pulling hot air right off the electric fan. I imagine under hood temps will be stupid high. Want to try and build a fiberglass air box / scoop that takes advantage of that otherwise useless giant hole in the GMC hood. Lower IATs should mean less knock and more power. Still need to relocate ac drier and coolant tank plus mounting the booster, it’s going to be packed in there.