m326

Sorry for the newbie questions, but I'm considering getting an S4. Since it already has biturbo at 250 HP, are there upgrades that can be done to get more power beyond the usuals like exhaust?

Also, what is the widest size wheels that can fit on the rear? Is it good idea to have the same width front and rear?

Thanks!

Vtec_Killer

are willing to invest.

Bollinger

The car has no problems with traction in straight line acceleration, so wide rear tires are of no value there. Plus, the car already understeers and putting wider tires on the rear will make that worse.

There are plenty of performance upgrades, the most bang for the buck is a simple chip which bumps you to 307HP. After that the price rises rapidly.

DrHandball

Different sized tires on an AWD vehicle (OD is different) this taxes the drive train too much. Also when the wheels are driving the car, the drive train will impart forces on the car that will try to stretch or compress. In either case, not a good thing. Something will break and it will be expensive, i.e. wheel bearing, suspension parts, etc.

Knew a guy that had different sized tires on a K10 pickup who only used 4wd a couple of times and did major wheel bearing and u-joint or CV joint damage.

The R

about his set up....he has 255s I think in the rear and 235 up front.....don't quote me on that though.