I have a 13.5AFR SAFC-2 tune on my Maxima and I don't have spacers because at the time they were on backorder for like 2-3 weeks. So my question is if I buy the spacer now and put them on will that screw up my tune and I would have to get it re-tuned or do the spacers not really affect the AFR much??? I'm assuming that they would.

 

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Manny FTW.