1-2 shudder at WOT

[AJP turbo]

Are they close in OD to the stock?..

[polskifacet]

No an inch smaller od. spedo is ~5 mph over actual

[AJP turbo]

No an inch smaller od. spedo is ~5 mph over actual

I dont know for fact...but an inch is alot in my book...i try to stay within.25" when switching tires without a tune change....the speed sensors will be reporting something different than what the ecu is expecting for gear and rpm so i could see it messing with stability control

[SHOdded]

Easy enough to address in the tune.  At least the tires are all the same size.

[polskifacet]

Eventually once I get LMS to schedule an appointment for me, I'll ask them to provide a winter tune to account for tire size and we will know for sure. Annoying it bugs out, should be better code.