ZZP Sonic Rear Disc Brake Conversion Kit


12 reviews

This product is currently out of stock.

Suspension & Brakes - ZZP Sonic Rear Disc Brake Conversion Kit
Suspension & Brakes - ZZP Sonic Rear Disc Brake Conversion Kit

ZZP now offers a rear drum to caliper/rotor conversion kit. Huge improvement in braking power and looks. The factory E-brake is still fully functional.

Compatible with 15" wheels.

This kit will not fit the Cruze. The bolt pattern on the hubs is different. 

Suspension & Brakes - ZZP Sonic Rear Disc Brake Conversion Kit
Suspension & Brakes - ZZP Sonic Rear Disc Brake Conversion Kit
Customer Reviews
4.6 Based on 12 Reviews
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Samuel F.
they work good

overall i'm pleased with this kit. installation however was pretty lengthy. I am not at all fond of the ebrake cable extension. the mount bracket is pretty meh as well. the instructions also were not helpful. Once i got it together it works great though, absolutely no complaints about the quality and function.

Stephen M.
Perfect for my 2018!

Thank goodness for zzp. The 2017+ Sonics all come with rear drums and they’re garbage. This kit bolted right on to my 2018 hatchback premier. The instructions were great and the install was super easy!!! The only modification I had to do was trim the wheel liner. The e-brake cable rubs really bad on the 2018 hatchback wheel liner. I just cut out a 4 inch rectangle that the cable would sit under, and no more rub! Their customer service was awesome throughout my the whole thing, thanks Kyle!

Dan R.
Sonic Brake Kit.

The disks came in with dings and scratches and gray paint on them. The brake lines did not have an adapter to connect to the factory line on the car had to have adaptors made. The left caliper park/e-brake malfunctioned right after the brake in procedure. Now that caliper is going to be shipped to zzp for repair or replacement under warranty could take 3 weeks. The brake pads only utilize about 2/3 of the disks surface. The emergency brake is week and stops the car very slowly. The customer service after the sale of the kit was real poor until the second person handling my concerns is doing good on customer service. This is the Only kit on the market. So with a few modifications on the kit. Or a great installer that can complete the upgrade to make the kit utilize it's full potential. This can be a great conversation kit. Thanks for making the kit. But a many points I was disappointed. Slow customer service and long turnaround on warranty work. Read all the conditions on the return and warranty clause.

Derry D.
Very nice upgrade to my

Very nice upgrade to my daughters Sonic

Sean S.
not what I expected

I've had the rear discs on for a few months now but every morning I move my car the rear squeeks or when I hit the brakes while backing up, plus I can't get the hand brake to work right