Yep, just make a cover. Everything else will work out fine. "The headers will fit the 5.3L on 99 to 03...if you don't have the air model but have the air headers, just make a custom cover for the air hole and bolt it on in place of the air tube." The headers are at a custom mechanic shop, BlackJack Auto & Truck (www.marylandmonster.com) that I am having some work done on my truck and he'll probably make that cover for ya if I ask him nice enough. Worst case scenario a small fee. Let me know if your interested.