phunk

My humble opinion on the matter is to just go all the way to 15s and swap when you want to use the meat.

The 2 bolts that hold the caliper to the knuckle are the same. With the wheel off, it is literally 2 bolts to swap, and the 10mm brake hose line. I have found that when switching from the sport brakes to the 350z base brakes, it only took 2 or 3 pumps to bleed the brakes... it was so minor I didnt even have to top off. It was like 5-6 pumps to bleed the sport brakes after swapping back.

For the 20 minutes of work (since the wheels are already off), i would use dedicated brakes for the meats rather than trying to run decent brakes back there that would work with road course use too.

just my take on it. because even with the 28s on 15s, i had to take care to launch and it was taking several practice runs and I destroyed clutch by the time I started to get the 60s down. Although, I was being a little foolish by not lowering the pressure as much as I should until several passes in.

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