I have a performance muffler, volant CAI and throttle body spacer.(no i don't care what you think, it works so suck it). Im not gonna chip it because thats a waste of money for little to no effect. and i like my truck to much to supercharge it. Any suggestions to add some additional power? :roadkill:
05 4.7L V8 (edit) 2wd
05 4.7L V8 (edit) 2wd
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