Quote:
Originally Posted by asearle74
I installed this kit on my M3 with ZCP wheels and 5 mm spacers. Clearance was tight but "enough". HOWEVER, in HPDE use (heavy braking and high temperatures), there was flex and/or expansion which resulted in scraping of the caliper and wheel. This occurred on both wheels. I was sent 10 mm spacers, which I will install this spring before my next HPDE track day.
Despite me aggravation at the damage caused by the optimistic fitment using the recommended 5mm spacers, the brakes are a significant improvement over stock M3 brakes. Temperatures were reduced by at least 100 deg F (I think it was closer to 150F, but been a while). Longevity of the pads should be greatly increased. They also look great!
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Did you use a pyrometer or the brake disc paint?
PS, post a photo!