I'm an LFX but RacnJsn95 intake porting on my car DID require a retune because of the additional airflow in the 2500 -7000 RPM range. So far it has held up great!!!
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Originally Posted by RacnJsn95
+1, If you have a bunch of other bolt ons you should consider a tune. Our current testing of our new style manifold spacer and ported intake on the LFX showed appx .4-.5 leaner from the additional airflow.
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