Don't spend even a dollar on a chip, that won't do you a bit of good with a gas engine that doesn't have major performance modifications. Do the bolt on thing if you want about 10 more RWHP. Headers are generally the best investment performance wise.
If you do the bolt on thing and are looking for more change the heads, intake, and cams.
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93 Thunderbird 5.0 HO
89 Firebird L03
95 F150 XL
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