AP Racing Drag Racing Front Kit 310mm - Audi RS3 8V

The AP Racing by Essex Drag Racing Competition Brake Kit is a front brake upgrade for the 2017-2020 Audi RS3 (8V). It pairs AP Racing CP8250 racing calipers with 310 x 32mm, 60-vane AP Racing J Hook discs on fully floating aluminum hats, built for track days and competition driving.

Why upgrade

The kit removes about 50 lb of unsprung weight from the front of the car compared with the OEM iron brakes, and 17 unsprung lbs. vs. the OEM carbon ceramic brakes. Each caliper weighs 4.8 lb without pads, against 10.75 lb for the factory 8 piston caliper. Each two-piece disc weighs 11.5 lb, compared with 29.6 lb Iron 12.45 lb Carbon Ceramic for the original 370mm disc. The 20mm pad is thicker than the 17mm factory pad, so it lasts longer and absorbs more heat between changes. Pistons are sized to work seamlessly with the OEM master cylinder and ABS.

Caliper and disc construction

On the Audi RS3 8V, the CP8250 caliper mounts radially on a dedicated bracket at 152mm centers with a 44mm offset, with an 3/8-24 inlet thread. Stainless steel caliper hardware gives a long service life even with frequent pad changes. There are no dust boots to burn up at track temperatures. Pads change with one bolt, with no caliper removal. The championship-winning 60-vane AP Racing J Hook discs are fully floating. The disc metallurgy is designed for the temperatures seen on track, for a long service life. Spiegler stainless steel brake lines with a clear sheath reduce compliance compared with the OEM rubber lines. The caliper uses a commonly available 20mm thick pad shape.

Features

• AP Racing CP8250 four-piston calipers
• 310 x 32mm, 60-vane J Hook discs on floating hats
• About 50 lb less unsprung weight
• 20mm thick brake pads
• Pistons sized for the OEM master cylinder and ABS

What's Included

• One pair AP Racing CP8250 racing calipers
• One set of 3mm caliper spacers (for use on 2017-2020 8V RS3 only, not required for TT RS or 2022+ 8Y RS3)
• One pair 310x32mm AP Racing CP3862, 60 vane, J Hook racing discs, with 6061 hard anodized aluminum hats, and attachment hardware
• One pair caliper mounting brackets and hardware
• One pair Spiegler Stainless Steel Brake Lines with abrasion resistant coating
• Detailed installation instructions

Brake pads are not included.

Specifications

Video

Fitment notes

This front kit fits the vehicles in the table below, which we confirmed against two sources using US model years. Essex has confirmed clearance with Spare Iron Brake Disc Rings, Replacement RH disc part#, 19 01 726 (CP3862-106GA), Replacement LH disc part#, 19 01 727 (CP3862-107GA), Disc Attachment Hardware, 8-bolt disc attachment hardware kit (enough for one disc) and Torque specs for disc assembly using this hardware 18 foot lbs. / 216 inch lbs.. Call us about the Audi RS3 and Audi TT RS before ordering; we have not confirmed fitment for them yet. Check your wheel with the Essex wheel fitment template before ordering.

Fitment