u/Joe-Mama-10267

Hi All- just got a new engine (covered under warranty) but my car has been stuttering only at 30-40mph. A little bit of rev dancing and drops sometimes at idle.

Tuned on 93, AMS 80 MM intakes, Catted DP, HKS Catback.

Anyone have any ideas? Already replaced MAF sensors. I’m thinking dealer when putting in new motor didn’t seat intakes correctly on install.

Would it be dumb to go back to dealer and say “Hey my car is having issues under 70 miles of new engine” or do you think they are going to tell me to kick a rock since it’s aftermarket?