C8 Corvette Grand Sport ACS Composite Rock Guards

Name: C8 Corvette Grand Sport ACS Composite Rock Guards
Brand: ACS Composite
SKU: [50-4-152|50-4-154]CFZ[50-4-156]
Price: 649.0 USD
Availability: InStock

ACS Composite rock guard full set for the C8 Corvette widebody, front and rear guards with tunnel mesh, Carbon Flash Metallic Black

Pair of ACS Composite 50-4-154 rear rock guards on white, showing the bladed shield fins that trap debris

ACS Composite rear rock guards shown with the removable tunnel mesh panel that fits behind them

ACS Composite front rock guard fitted to a C8 widebody, shown ahead of the side intake in the front wheel opening

ACS Composite rear rock guard fitted to a C8 widebody, shown behind the rear wheel with the tunnel mesh panel in place

Front rock guard dimension diagram for the C8 widebody, showing 3/4 inch and 1 3/4 inch measured from the wheel opening

Rear rock guard dimension diagram for the C8 widebody, showing 1 1/4 inch and 2 9/16 inch measured from the rear wheel opening

$746.35 $649.00 Save $97.35

Shipping calculated at checkout.

In stock - Ships in 1–2 business days

Rock Guard Selection

Front and Rear

Front Only

Rear Only

ACS Composite Rock Guards - C8 Corvette Grand Sport Mud Flaps

The ACS Composite Rock Guards are molded PC composite guards for the 2027 C8 Corvette Grand Sport, coupe and convertible, with the 6.7L LS6 V8. They clip to factory mounting points inside the wheel well and are shaped for the widebody flares your car wears from the factory.

Rear tires throw everything the road has at the rocker behind them, and on a mid-engine car that spray also lands on the intake openings ahead of the rear wheels. A summer of back roads leaves the paint below the door peppered and dulled, and it shows up first on a car this color-sensitive. These guards catch it before it reaches the panel. Mud flap is the word most people reach for, and it is close enough, except C8 Corvette Grand Sport mud flaps of this kind mount inside the wheel opening rather than hanging off it, so the car keeps its lines.

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]
Material: PC composite, impact resistant
Finish: Carbon Flash Metallic Black, matching factory black exterior trim
Design: Bladed-Shield profile, patented, US Patent D1,124,992
Rear set: Includes removable tunnel mesh
Mounting: Existing OEM points inside the wheel well
Drilling or tape: None. All clips supplied
Wheel removal: Not required
Coverage: Front only, rear only, or the full front and rear set
Packages: Compatible with the Z07 package
Wheels: Fits OEM and many aftermarket wheel setups. Check an unusual offset before ordering
Origin: Manufactured in North America

Benefits

Stops the peppering and sandblasting that collects on the rocker and the lower quarter behind the rear tires
Keeps debris out of the side intake openings ahead of the rear wheels
Carbon Flash Metallic Black reads as factory trim rather than an accessory bolted to the car
Cuts the carbon ceramic brake dust that settles behind the wheels
Corvette rock guards that mount inside the wheel opening, so nothing hangs below the body line
Front, rear or the full set, so you can start with the end that takes the most abuse

What to Expect

The guards clip into the factory mounting points inside the wheel well. Nothing is cut, drilled or taped
The wheels stay on the car. A trim tool helps release the OEM bezel and ACS sells one if you do not have a set
The rear tunnel mesh comes out separately when you want to clean behind it

CORVETTE COMPATIBILITY

Generation: C8 Corvette
Model: Grand Sport
Model Years: 2027
Engine: 6.7L LS6 V8
Body: Coupe and Convertible, widebody
Packages: Z07 compatible

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 2027 C8 Corvette Grand Sport owners who want the rocker and the lower quarter protected without anything hanging below the body line.

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 2027 Grand Sport in coupe and convertible, and the ACS Composite Rock Guards deliver impact resistant PC composite construction, a Carbon Flash Metallic Black finish matched to the factory black trim, and a clip-in fit to existing OEM points without compromising stock wheels or aftermarket wheels at stock offset.

✅ In-stock items ship in 1–2 business days via Standard Ground.

✅ Free shipping items are available in the Continental US only.

✅ Custom quotes available for 2-Day, Next Day, or Saturday delivery.

✅ Custom or backordered items ship as soon as available.

View our full shipping policy →

[{"id":50506521149677,"title":"Front and Rear","option1":"Front and Rear","option2":null,"option3":null,"sku":"[50-4-152|50-4-154]CFZ[50-4-156]","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"C8 Corvette Grand Sport ACS Composite Rock Guards - Front and Rear","public_title":"Front and Rear","options":["Front and Rear"],"price":64900,"weight":91172,"compare_at_price":74635,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":50506609131757,"title":"Front Only","option1":"Front Only","option2":null,"option3":null,"sku":"[50-4-152]CFZ","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"C8 Corvette Grand Sport ACS Composite Rock Guards - Front Only","public_title":"Front Only","options":["Front Only"],"price":17900,"weight":91172,"compare_at_price":20585,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":50506609164525,"title":"Rear Only","option1":"Rear Only","option2":null,"option3":null,"sku":"[50-4-154]CFZ[50-4-156]","requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"C8 Corvette Grand Sport ACS Composite Rock Guards - Rear Only","public_title":"Rear Only","options":["Rear Only"],"price":49900,"weight":91172,"compare_at_price":57385,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

Vehicle Fitment & Specifications

Generation:	C8
Trim Level:	Grand Sport
Engine Code:	LS6
Transmission Type:	Dual-Clutch
Intended Use:	Street, Track

Frequently Asked Questions

Do the ACS rock guards fit a C8 Corvette Grand Sport?

Yes. They fit the 2027 C8 Corvette Grand Sport in coupe and convertible. The guards are cut for the widebody wheel openings your car has from the factory, and they use the mounting points already there.

Are these the same as mud flaps?

That is what most owners call them. The difference is where they sit: these mount inside the wheel opening on factory points rather than hanging below the body, so they take the spray off the tire without changing the shape of the car.

Do I have to drill anything?

No. They clip to existing OEM mounting points, there is no tape and no drilling, and the wheels stay on the car. A trim tool helps release the OEM bezel and ACS sells a set if you do not have one.

Will they work with the Z07 package?

Yes. The guards are compatible with the Z07 package.

Will a set made for the narrow-body C8 fit my Grand Sport?

No. The narrow body and the widebody take different guards, and yours is the widebody set: 50-4-152 at the front, 50-4-154 with 50-4-156 at the rear. Check those numbers before ordering and ask us if you are unsure.