Hey guys,

I just bought a set of 4 Michelin Pilot Sport A/S's for my 2003 G35 Coupe on factory 17" Wheels.

Now the back story, when I bought my car originally it came with the PS A/S's all around. Now about 7 months ago I found that I needed rear tires, so rather than doing the right thing and replacing them with the same I took it to some tire place and they gave me Firestone's in the rear since they were equivalent to the A/S's (supposedly).

So fast forward a month or so and I notice this terrible vibration at speeds above 65MPH. After a few months I got used to it just turning up the music but I'm sure it wasn't good for the car and it was driving my passengers nuts.

So this past weekend I get all 4 new tires thinking this will fix it all, I will finally have my ride quality back.

Nope, on the way home it felt great, come Monday (today) morning on the way to work and I don't feel the vibration so much, but the cabin noise is still very loud.

I've ready a few posting about tire pressure effecting it so I dropped mine down from 31psi to 30 and still can hear it pretty loud.

At this point I don't know what to do? Should I take it to Infiniti? Would a alignment fix it?

If anyone has experienced this problem or can point me to a resource to read on this problem it would be greatly appreciated.

Thank you all for your time!

 

maybe you have a bent rim, need a wheel balance, or an alignment done, or maybe your bearings went out.

 

Same thing about happened to me in my last car, my rear alignment was way out of wack. Get an alignment and it should solve all or 95% of the issue

 

Thank you both for your reply. I'm probably going to take it in for a alignment this weekend since I notices yesterday that my rear tires are looking like this...

/ \

Hopefully that fixes it. I'll report back my findings.