The EBC Redstuff rear pad (part DP31771/4C) is built for the C6 Corvette Grand Sport with the 6.2-liter V8. The manufacturer describes Redstuff as an aramid fiber compound with ceramic particles mixed in, and it contains no steel fiber, the ingredient that drives brake dust and rotor wear. For a Grand Sport owner tired of black wheel dust, that low-dust formulation justifies the price over a bargain pad. The manufacturer also reports a high-friction formula that improves braking effect by 15%.
Redstuff pads carry a red Brake-in surface coating that conditions the rotor and speeds early bedding, and the manufacturer says the pads need roughly 500 km of driving to reach full performance. The manufacturer also states that the pads are ECE R90 tested and approved, which matters if you drive the car on public roads. Set your expectations for a break-in period before judging the pedal feel. This is a street-oriented pad, so the manufacturer does not position it as a track compound.
Before ordering, confirm that your car is a 2010–2013 Grand Sport with the 6.2 engine, since Z06 rear pads use different part numbers. Owners on user forums describe the Grand Sport's monobloc calipers as bolting directly to the knuckle, and they report that the caliper guide pins often seize. Search terms this part targets include C6 Grand Sport rear padlets, 2010-2013 Corvette low dust rear pads, and ceramic rear brake pad swap.
The manufacturer says Redstuff takes approximately 500 km to fully bed down. The red Brake-in coating is designed to speed up the initial bedding process.
Details vary. Owners on user forums report that some Grand Sport pad swaps require removing the caliper completely, while others remove only the guide pins and leave the caliper mounted. Confirm the procedure with the manufacturer or a service manual before starting.
This is a moderate rear brake job for a home mechanic with jack stands and a torque wrench. Owners on user forums list 15mm and 18mm wrenches, a large C-clamp, a Torx T45 bit, brake cleaner, and high-temperature caliper grease. Compress the pistons slowly with the clamp, and never pry against the rotor. Inspect the caliper slide boots for damage and replace the pads on both sides together. Owners report that frozen guide pins can round off Torx heads, so use a bit that seats fully. Forum-reported torque values are roughly 125–129 lb-ft for the bracket bolts and about 23 lb-ft for the guide pin bolts, but confirm these against a factory service manual before torquing.
