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Old 02-13-2023, 02:41 PM   #15
Slurpee
 
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Drives: 2020 ZL1 A10; Shadow Gray Metallic
Join Date: Sep 2020
Location: Chicago
Posts: 254
Quote:
Originally Posted by cdrptrks View Post
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.
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