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Miscellaneous Automotive
Car Performance & Repair
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<blockquote data-quote="ighettoboyi" data-source="post: 716873" data-attributes="member: 553311"><p>all of you who say performance mods help milage are dumb. obviously you guys aren't readjusting your a/f ratios like you should. intakes and catbacks cause minimal changes in parameters and can be adjusted, but headers require some computer work (assuming your car is relatively new and is ecu operated not mechanical). anyways, once you readjust you shouldn't be getting better milage. also headers makes it more difficult to pass smog. and the performance (and loudness) is usually greater w/headers as opposed to just catback/exhaust</p></blockquote><p></p>
[QUOTE="ighettoboyi, post: 716873, member: 553311"] all of you who say performance mods help milage are dumb. obviously you guys aren't readjusting your a/f ratios like you should. intakes and catbacks cause minimal changes in parameters and can be adjusted, but headers require some computer work (assuming your car is relatively new and is ecu operated not mechanical). anyways, once you readjust you shouldn't be getting better milage. also headers makes it more difficult to pass smog. and the performance (and loudness) is usually greater w/headers as opposed to just catback/exhaust [/QUOTE]
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