I bought some Yokohama AVS ES100 225/45-17 tires from the Tirerack and had them mounted on 17" Rota Attacks on my '03 WRX sedan.

The sticker on the inside of my car suggests 32 rear and 33 front for 215/45-17 tires. That's close but not exact. Anyone have a better idea what I should set these tires to?

Thanks in advance.

 

Feel free to go higher if you want better performance. That tire pressure is recommended for best fuel economy and ride comfort. I have 215/45/17's and I run 36 in front and 36 in rear.

 

Thanks for the info, I have them both at 35 right now. Curious, anyone know what I would benefit from slightly higher front tire pressure?

 

Higher front pressure will make the car feel more responsive, but it will also promote less-predictable oversteer as the difference between front/rear increases. I run between 38 and 40 for best gas mileage and responsiveness. I also keep all four at the same pressure.

 

Thanks for the info. What tire size you running on or is that even really a factor in tire pressure?

 

When you say size, do you mean width or sidewalls? But no, it really shouldn't matter that much. The more air you run, the rougher the ride. Also, there is a limit to the tire pressure your tires can safely run at. Just stay under that and play w/ various setups until you find what you like.

 

HomerJay is right on. As long as the size is correct for the car, use the listing on the placard as your minimum and the "max pressure" listed on the tire as your max.

 

Thanks for the info everyone. I got learned.