Cooper STT air-pressure

[amora]

HI!
As you know the Cooper STT are very loud at the highway.
I have 33x12,5 R20 LT
Can you tell me what air-pressure you have??

Thanks

 

[swamp_life hemi 05]

When I had these I had them at 38 psi in the front 36psi in the rear. I had the exact size you have. Might wanna look into getting them nitrogen filled.

Sent from my VS920 4G

 

[amora]

I read the last days a lot of about air-pressure in tires. Many people do 50psi in the STT. Others only 28 - all of them do not go off road. hmmmmm

Are they louder with more or less pressure??