just make sure you pull the 'brain' from underneath the dash otherwise your shit will be buzzin'.

It's the blue box above the steer shaft - yes, it's a pain in the ass to get to but should take you less than 15 min. to pull.

-Zach

Too add to the mix... with rolling the fenders (some have opted to remove the liners). When you do this, there will be water that can penetrate into the cabin from the door threshold. Only had it happen once, major rain and standing water at 45 mph. There is a solution though...
Add a blocker with sheet metal. The contour took me some time to get right, but using the existing bolt here's is what you can do to prevent it.

I have 225/45R15s on some 15x7s that are going to be going onto an NA with 600#F/375#R FCMs; think I need to roll the fenders?

I just cut the plastic liner so I had basically 1/3 of it left to bolt back in. Blocks the fender/door threshold just fine.

He He... wish I didn't get rid of them so quickly. ;)

I did have to roll the front fenders with the R-S3s (not the rears, wtf?) and I completely banged the shit out of the fenders.

I didn't know that the miata fenders were such a great composting site, though.

225/45/15 tires on 15x9 6ULs fit fine with no rubbing. 12.12" front ride height, 12.3" rear ride height. 750 front springs 450 rear springs. This is at Harris Hill which is a bumpy track.

I rolled the fenders and everything fits fine, no rubbing.

http://img705.imageshack.us/img705/9...421dsc0066.jpg

15x9?

Looks like stretchorama

That's what the 225 RS-3 looks like on the 9" wheel. That stretchorama is good for lap times.

looks great!

EEEK! Don't let the hella slammed stance boys hear that!

Well to them that tire is sitting fat on that wheel. For a track guy, that's stretched. Slammorama guys would want say that 15x9 needs a 195 :(