Picture of Wheels you have.

[steved0x]

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'm loving the 245/40/18 on the front of my Cayman, front grip for days, but be aware that 245/40/18 won't fit the front of the 986 boxster unless you have aftermarket coilovers (I think TRK has KSport? apologies TRK if I got that wrong) - the 245/40/18 is too tall (approx 25.6" vs 25" for stock) and the tire will majorly hit the lower spring perch of the stock front strut and I don't think any amount of spaces could push the wheel out enough to fix that. I learned the hard way when I tried to run some Cayman wheels I bought that had 245/40/18 and 285/35/18, the back fit and looked awesome, but the front would not and it wasn't even close....