[Slurpee]

Originally Posted by cdrptrks

I have heard that there is less air space for brake cooling when running 18" wheels compared to 19".

Also if you get a small rock/pebble stuck between the ZL1 caliper and an 18" wheel it will wear the wheel paint off and possibly wear a grove into the wheel barrel. I believe you also need to consider wheel weight height and placement in relation to the ZL1 caliper to avoid interference with 18" wheels.

I was planning on running the SS deflector for the added brake cooling on the 18's.


But yes it's a very tight fit with the calipers. There's tradeoffs to everything. The Apex wheels are designed to clear the ZL1 calipers, I went with SM-10's.

[Msquared]

It's a tight fit for the calipers, but there is plenty of space for airflow through the rotors.