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Tune needed?

^^^ What he said...I have the Nismo R-Tune intake and FI resonated high flow cats (on an IPL which is basically the Nismo tune, 348hp). My a/f ratios were off

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Old 09-16-2017, 10:05 AM   #15 (permalink)
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^^^ What he said...I have the Nismo R-Tune intake and FI resonated high flow cats (on an IPL which is basically the Nismo tune, 348hp). My a/f ratios were off the charts when I was logging them with OBD Fusion. So I went to the dyno just to see and use their wideband and sure enough, I was in the 9:1 ratio by redline! Super rich after 5300rpm.

Intake and FI RHFC's were my only mods. Car ran and felt strong but definitely needed a tune which made quite a difference. The intake has the "inserts" to keep the airflow identical to the stock intake where it's approaching and flowing around the MAF's. For tuning, those were removed.
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