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Cobra Forums
The Terminator
Engine/Tuning
X-Pipe Installed, New Tune Required??
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<blockquote data-quote="Wildman113" data-source="post: 11230809" data-attributes="member: 125426"><p>I just installed a Magnaflow Catted X-pipe with the spun metallic cats on my '04 Cobra.</p><p></p><p>The car was previously tuned by Horsepower by Hermann with the intake, magnaflow catback, and 2.76" pulley.</p><p></p><p>Looking for advice from some veteran tuners here - will the x-pipe cause the A/F ratios to go more towards the lean side due to better exhaust flow?? Boost should drop slightly, but the volume of air entering the engine should remain the same. Just wondering if this mod will require a new dyno tune, which I would rather not do unless its necessary.</p></blockquote><p></p>
[QUOTE="Wildman113, post: 11230809, member: 125426"] I just installed a Magnaflow Catted X-pipe with the spun metallic cats on my '04 Cobra. The car was previously tuned by Horsepower by Hermann with the intake, magnaflow catback, and 2.76" pulley. Looking for advice from some veteran tuners here - will the x-pipe cause the A/F ratios to go more towards the lean side due to better exhaust flow?? Boost should drop slightly, but the volume of air entering the engine should remain the same. Just wondering if this mod will require a new dyno tune, which I would rather not do unless its necessary. [/QUOTE]
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The Terminator
Engine/Tuning
X-Pipe Installed, New Tune Required??
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