im looking at purchasing a 2006 2wd crew cab with the 5.3 flex fuel (vin code z). ive heard they have bigger fuel pumps and injectors, but what issues if any are there with doing the following: cold air kit, long tube headers, off road y pipe, cat back exhaust, comp cam 212/218, 918 valve springs, 4.10 gears and 22 inch wheels. any hurdles i should know about?


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Let us know when you get the truck. Post up some pics!
