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StopTech Brake System Upgrades     StopTech ST   StopTech ST-R (Trophy)   StopTech Spare Parts For dual-purpose street/track cars. Large friction rings with patented cooling technology allows for consistent braking power and pedal feel. Removeable steel bridge allows for extremely fast pad change.   For track cars and club racing. Weight optimized calipers with up to 20% weight reduction compared to ST. Can be ordered without dust boots for racing use. Full float rotor mounting available upon request.   For ST and ST-R kits. Spare parts including discs, mounting hardware, and original pads are available for order.             E90/2/3 M3 Part Number ST MSRP ST-R MSRP Slotted Discs L/R Pads 380x35 6 Piston Front 83.160.6D00 $3,395 $4,145 31.846.1101.99/1102.99 309.12470 355x35 4 Piston Front 83.160.4C00 $2,795 $3,545 31.747.1101.99/1102.99 309.06090 355x32 4 Piston Rear 83.160.0047 $2,595 $3,345 31.737.1101.99/1102.99 309.06090 E46 M3 ZCP 380x32 6 Piston Front 83.156.6800 $3,295 $4,045 31.836.1101.99/1102.99 309.12470 355x32 6 Piston Front 83.155.6700 $3,195 $3,945 31.737.1101.99/1102.99 309.12470 355x32 4 Piston Front 83.155.4700 $2,695 - 31.737.1101.99/1102.99 309.06090 345x28 4 Piston Rear 83.156.0047 $2,595 $3,345 31.626.1101.99/1102.99 309.06090 E46 M3 non-ZCP 380x32 6 Piston Front 83.137.6800 $3,295 $4,045 31.836.1101.99/1102.99 309.12470 355x32 6 Piston Front 83.137.6700 $3,195 $3,945 31.737.1101.99/1102.99 309.12470 355x32 4 Piston Front 83.137.4700 $2,695 - 31.737.1101.99/1102.99 309.06090 345x28 4 Piston Rear 83.137.0047 $2,595 $3,345 31.626.1101.99/1102.99 309.06090             Please Call/Email to Order
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