Intake & Downpipe without tune?

Dubers

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Stevie
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I’ve recently purchased PRL’s short ram intake (race) & catted downpipe V2.

I’m planning on installing the ktuner software after a short break-in period. Can I install the downpipe beforehand? I know the vehicle could throw a code , but will I cause any damage to my Si? I am guessing the racemaf housing for the intake precludes it’s install without a tune. Has anyone run one or both without a tune? Thanks
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hobby-man

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DP is fine, you might get an O2 sensor code but not a big deal.

Definitely don't run the Race MAF without Ktuner, you need to recalibrate the sensor or your fuel trims will be way off.
 


 


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