Stanv03
Well-Known Member
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- #1
Hello, I have a 2020 Mustang GT Premium. I got it back in April with 30K miles and it now has 38,030 miles on it. And I’ve noticed that recently when I put it in into Sport Plus. And drive it for a while like on the highway, maybe step on it on bit. After when I come to a complete stop, the car starts idling rough the rpm needle will bounce, you can hear it and feel it like the car shake a bit. I have not done any modifications to the engine. All I have done to the car is a K&N drop in filter, Oil Catch Can and a Roush CatBack exhaust. Does anyone know what might be going on? Is it normal? Is there a way to fix it?
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