PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Is tuning required after header install?

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Old 10-09-2005 | 08:06 PM
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Default Is tuning required after header install?

Im using o2 sims with my hooker set up,no cats,it seems its running a little rich is this common after headers are on?Which is the best tune for the money?
Old 10-09-2005 | 08:41 PM
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yes its common to run rich after headers...is tuning required, no...would it make the most of your headers, yes.




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