Picture of Wheels you have.

[The Radium King]

Originally Posted by lawren

I just bought a 1998 Boxster Base model to be used as an autocross/track toy.

I plan to run RE71Rs (225/45-17 front & 255/40-17 Rear) on the stock 17" wheels for autocross (C Street). I will be installing an adjustable front sway bar this winter.

I'm planning on using another set of wheels and tires for track days. I'm a big fan of the Nitto NT-01. I noticed Radium Kings setup below:

OZ 18" wheels:
front 8.5" wide, ET 53 with 7 mm spacer = ET 46, Nitto NT01 245/40
rear 10" wide, ET 40, Nitto NT01 275/35

I'm loving this option because i already have the 8.5" OZ wheels (ET 53) that i ran on the front of my 997 with the same tire. In the short term, I'm planning to stick with the stock struts/shocks and LCA. Anybody see any issues with this plan?

i've actually moved to a 15mm spacer in the front. you may need to take a heat gun to punch out some of the plastic wheel well liner to avoid rubbing at full lock. the only consideration is that is a lot of tire for a base (and probably for an s as well). make sure turning all that rubber doesn't bog you down.