C8 Corvette ZR1 and ZR1X ACS Composite Rock Guards

ACS Composite Rock Guards - C8 Corvette ZR1 and ZR1X Mud Flaps

The ACS Composite Rock Guards, part numbers 50-4-152 front and 50-4-154 with 50-4-156 rear, are molded PC composite guards for the 2025 and later C8 Corvette ZR1 and the 2026 and later C8 Corvette ZR1X, coupe and convertible, with the 5.5L LT7 V8. They clip into the factory mounting points inside the wheel well and are cut for the widebody flares both cars wear.

Power is what makes this a different problem. A car putting this much torque through the rear tires picks up loose stone and fires it at its own bodywork, every time the throttle goes down. The rocker takes the first hit and the lower quarter takes the rest, and a track weekend makes both worse. These guards stand between the tire and the panel. They get called mud flaps, which is fair, except C8 Corvette ZR1 mud flaps of this design mount inside the wheel opening rather than hanging below the body, so the car keeps its shape.

Product Details

• Part numbers: front [50-4-152]CFZ, rear [50-4-154]CFZ[50-4-156], front and rear [50-4-152|50-4-154]CFZ[50-4-156]
• Front: [50-4-152]CFZ sold as a pair
• Rear: [50-4-154]CFZ[50-4-156] tunnel mesh, sold as a pair
• Profile: Bladed-Shield, patented, US Patent D1,124,992
• Material: Impact resistant PC composite
• Finish: Carbon Flash Metallic Black, matching factory exterior trim
• Mounting Locations: Factory mounting points, all clips supplied, no drilling and no tape
• Wheels: Stay on the car during the install
• Coverage: Front only, rear only, or both ends
• Aero: Sits inside the wheel opening, clear of a wing, a splitter or an underbody tray
• Wheel setups: OEM sizes and most aftermarket. Ask first if you run an unusual offset
• Built: North America

Benefits

• Takes the stone strike that a 5.5L LT7 car generates for itself under throttle
• Protects the rocker and the lower quarter, the panels that show chips first
• Carbon Flash Metallic Black reads as factory trim, not as an accessory bolted on afterwards
• Holds down the carbon ceramic brake dust that settles behind the wheels
• Corvette rock guards that live inside the wheel opening
• Front, rear or both, so the end that takes the most abuse can go on first

What to Expect

• The guards clip into the mounting points already in the wheel well. Nothing is cut or drilled
• Wheels stay on. A trim tool helps release the OEM bezel and ACS sells one if you do not have a set
• The rear tunnel mesh lifts out on its own, so cleaning behind it leaves the guard in place
• Reversible. The clips come out and the car goes back to standard

CORVETTE COMPATIBILITY

• Generation: C8 Corvette
• Models: ZR1 and ZR1X
• Model Years: ZR1 2025 and later, ZR1X 2026 and later
• Engine: 5.5L LT7 V8
• Front electric drive: ZR1X only. An electrified front axle, 186 hp and 145 lb-ft, 1,250 hp combined. GM calls the system eAWD. The ZR1 is rear-wheel drive
• Body: Coupe and Convertible, widebody
• Aero packages: Fits with or without the ZTK package

Why Buy from Custom Corvette Accessories?

Custom Corvette Accessories is enthusiast-run and Corvette-focused. The ACS Composite Rock Guards are a direct upgrade for C8 Corvette ZR1 and ZR1X owners who want the bodywork shielded from what this much rear torque throws forward under throttle.

The [50-4-152]CFZ covers the front, the [50-4-154]CFZ[50-4-156] the rear and the [50-4-152|50-4-154]CFZ[50-4-156] both ends of the ZR1 from 2025 and the ZR1X from 2026, and the ACS Composite Rock Guards deliver the patented Bladed-Shield profile, a Carbon Flash Metallic Black finish matched to the factory black trim, and a clip-in fit inside the wheel opening without compromising a wing, a splitter or an underbody tray.