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Vibration and Unstable past 100mph?

Enzo

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Hey guys! I noticed tonight that when I went over 100mph, the car had some sort vibration and kind of felt unstable, it felt solid, but i felt some sort of vibration coming in. I don't usually reach these sort of speeds, but is that something normal to feel or is there something wrong with wheels or driveshaft?
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v8ter

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Probably tires, switch the wheels from front to back from left to right and see if it changed anything,in case you still have the same size front and back


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Pnasty

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I hit 100 regularly, over 125 often and its smooth as butter. sounds like tires
 
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Enzo

Enzo

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Yeah I have the performance package and so tires are different size. They need balance or they need replacement? Car has only 3800 miles and thread looks good. I heard another member here had to have them replaced because they were good.

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derieuz

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Take them in and get them roadforce balanced, sounds like a tire balancing issue. Unless you bent a rim
 

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Enzo

Enzo

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Take them in and get them roadforce balanced, sounds like a tire balancing issue. Unless you bent a rim
I think probably tire balancing issue, i haven't hit any hard potholes or anything like that. It almost felt kind of wobbly over 100mph best way to describe it.
 

Obsessed

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I think probably tire balancing issue, i haven't hit any hard potholes or anything like that. It almost felt kind of wobbly over 100mph best way to describe it.

What suspension mods do you have?
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