For full performance upgrades, see our Camaro Upgrades.
The 2018 Chevrolet Camaro ZL1 carries the largest factory brake package in Camaro history — 6-piston Brembo front calipers and 4-piston Brembo rear calipers. Both are larger and sit further outboard than the hardware on base SS cars, which is the single most important fitment constraint for ZL1 wheel selection. This page covers 20x9.5 / 20x10.5 wheels with 275/35R20 / 305/35R20 tires in the +35 to +45mm offset range. The 2018 ZL1 1LE introduced the ultimate factory track configuration: 20x10 front and 20x11 rear staggered setup on Michelin Pilot Sport Cup 2 tires, representing the widest factory contact patch ever fitted to a production Camaro. For aftermarket builds targeting a similar package, the 1LE offset calibration (approximately +27mm front, +17mm rear) provides the benchmark before adjusting for your specific wheel. Hub bore 65.1mm applies to all Gen 6 ZL1 cars. The 6-piston front Brembo inner barrel clearance requirement is approximately 18-20mm minimum. Running 275/35R20 / 305/35R20 on 20x9.5 / 20x10.5 wheels in the +35 to +45mm offset range requires verifying both front caliper clearance and rear caliper clearance separately — the ZL1's 4-piston rear Brembo is larger than the rear caliper on SS cars and catches owners who only check front fitment. If you are transitioning from an SS wheel package to a ZL1-specific fitment, plan to verify the rear separately even if the front measurements match.
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Compare 2018 wide tire fitment across related Chevrolet models
More Chevrolet fitment options for your build
2019 Chevrolet Camaro ZL1
305/35R20 / 345/30R20
2014 Chevrolet Camaro ZL1
275/35R20 / 305/35R20
2010 Chevrolet Camaro ZL1
275/35R20 / 305/35R20
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