928 Specialists BIG Brake Adapters for 77-86(VIN#0998)

Finally, a cost effective solution for upgrading the early style 928 brakes to the incredible stopping power of the legendary "BIG RED" GTS Style or "S4/GT" Brakes!

Our 928SP Big Brake Upgrade system is a true bolt on kit which doesn't require the costly and hard to find complete S4 suspension swap! 

Our adapters bolt on to the existing caliper location of 78-81 928s.

For 82-86US and 80-85 Euro S you must replace your front spindles with the 78-81 style spindle for the adapters to fit.

You slide on the specially selected Genuine Porsche Big Brake 2-peice Cast-Hole "BIG Brake" rotors or "S4/GT" Rotors, bolt on the "Big Red" "GTS Black" or "S4/GT" Calipers with the proper bolts, install the pads/sensors, connect the hoses and bleed the system. 

The rear kit is even easier requiring only special spacers for the rear S4 calipers and utilizes any S4/GT/GTS rear rotor. Again you connect the hoses, bleed the system and you are ready to go out and enjoy the new stopping power of your 928 !!

Note: Some factory and aftermarket wheels may require the use of a 1/8" to 1/4" front wheel spacer for proper caliper clearance. Due to clearance reasons you must upgrade to the newer style steel cased ball joints which is also highly recommended on all 78-84(up to Vin# 92 ES 860403).

Includes Adapters for Front and Rear Only.

Requires - "GTS" & "Big Brake" Front Caliper Bolt Set if using "GTS" or "Big Brake" style Calipers, or "S4/GT" Front Caliper Bolt set if using "S4/GT" Calipers - See related items below.