Quote:
Originally Posted by Techn9cian805
A tune is still strongly recommended to make sure the car is running right with the right A/F ratio.
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I will verify how its running by data logging with hp tuners. I have never heard of needing a tune for cat deletes in the 20yrs I have been modding cars. The "tune" is just to address the CEL from removing the cats which can also be addressed by using the adapters that I mentioned. My brother is running cat deletes with no tune on his 2016 Scat Pack and it runs great.