Here's what I did on mine:
Went with Continental DWS tires. Had the ride height adjusted at all 4 points, to put me in the middle of the spec range for the Series Speciale. Car was loaded up with weight as called for by Ferrari when doing these adjustments. I also had the alignment er, aligned lol. I can get the numbers for the camber, caster, and toe if you want... I have the printout somewhere. Tracks perfect.
Fully loaded the suspension with a load bar while on the lift, and there's a clean 1/2" all the way around front and rear at maximum compression. No rub on fronts either when fully loaded and at maximum turn. Have not rubbed at all with these specs, and like how it looks. Love how the car feels now! Very planted, and surprisingly easier to turn the steering wheel at slow speeds like parallel parking.
No spacers, simply bolt on with 52mm lug bolts all the way around. Double check the rear bolt length to make sure that they clear the hand brake assembly in the drum. (You can see it when the wheels are off thru the threading on the rears.)
NOTE: The original overall offset on the rears are likely different from yours, as my car is a SS. However, the wider stance of the SS was added to the WHEEL offset from Ferrari. (i.e. the wheels on the SS have 25mm more material on the inside of the wheels, putting them an inch wider on either side than earlier 348's... So providing the offset on the new 360 Modena wheels are the same as the ones noted below, they should sit the same on your car, as mine all said and done.
Hope that makes sense... I had to do tons of reading to finally decipher all the specifics when changing my wheels out... was a chore for sure.
Front clearance with the SS (has the front spoiler and corner skid plates) is 4.5"
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Last edited by Pixel6; 03-12-2014 at 10:32 AM.