I currently have an 04 touring with 18s. Now if i get the Volk SF challenges, will my VDC traction controll go all in whack? Also if i get these, can i still use my tirepressure guage and will the mph and all that change? Just wondering cause this is a mod id like to do soon.

 

What matters to the VDC/TCS is the diameter of the tires, not the wheels. Keep the recommended diameter stagger - ca. 0.5" to 0.75" - and the electronics should remain happy. The TPS requires that the rim have a vertical surface for the valve stem in order to mount the sensors, unless you want to tape them to the inside of the wheels. Two and three-piece wheels seldom have this mounting available, but I'm not certain about the Challenges.

 

ok so its the wheel diameter not the rim diameter right.