Im considering putting 10mm hubcentric spacers in the rear to have the wheels a little more flush to the body. The spacers I belive are made by H&R and include longer studs. My question is are there any adverse effects in doing this, I have read if the spacers are not hubcentric the wheels my vibrate at speeds over 100mph. Has anyone had experience with doing this?

 

will increase stress on wheel bearings (probably nominal). will increase understeer.

 

It will increase understeer? I thought it would decrease understeer because it would be a slightly wider wheelbase.

 

I have a pair of hubcentric 10mm H&R spacers for sale if you didn't pick any up yet...
But mine were used in the front, so I can't answer your Q.

 

Will increase understeer theoratically. I've yet to experience understeer on my S2k. It's always been oversteer (fun btw). You will have a wider stance in the rear making it a bit more stable, or stick better in the rear only, making the "unmodified" front axle wanting to slide/loose grip. You might want to balance things out by applying the same width increase to the front axle.

 

j's racing makes em too