Brembo 2P3.8067A3 GT M4 TY3 Rear Big Brake Kit 345x28mm 2-Piece Slotted Discs Silver Calipers

The Brembo GT | M4 TY3 is a rear big brake upgrade kit featuring 345x28mm (13.6") 2-piece composite discs paired with 4-piston monobloc aluminum calipers finished in silver. Part of Brembo's acclaimed GT Series, this kit delivers motorsport-derived braking technology engineered for both spirited street driving and demanding track day use.

The Type 3 (TY3) slotted disc finish continuously refreshes the pad surface during braking, removing debris and maintaining a consistent friction coefficient for reliable, fade-resistant stopping power. The 2-piece floating disc assembly uses an aluminum alloy hat with a D-bobbin floating mount that allows controlled radial and axial movement, reducing unsprung weight and minimizing thermal stress transfer to the hub.

Key Features:

• Caliper Configuration: 4-Piston Monobloc (M4) — machined from a single cast aluminum billet for exceptional rigidity and minimal deformation
• Disc Size: 345mm x 28mm (13.6" diameter, 1.1" width)
• Disc Type: Type 3 (TY3) Slotted — curved 48-vane vented design for optimized thermal dissipation
• Disc Construction: 2-Piece floating assembly with D-Bobbin and anti-rattle spring mounting
• Disc Material: Advanced high-carbon alloy with corrosion-resistant plating
• Caliper Mount: Radial-mount fixed caliper with opposed pistons for even pad force distribution and uniform wear
• Caliper Finish: Silver with Brembo logo
• Position: Rear axle — complete axle set, pre-assembled

What's Included:

• Pair of 4-piston monobloc silver calipers
• Pair of 345x28mm TY3 slotted 2-piece vented discs
• Brembo FM1000 high-performance brake pads
• Stainless steel braided brake lines (Goodridge-manufactured)
• CNC billet caliper adapter brackets
• All necessary mounting hardware for direct installation

Radial-mounted fixed calipers combined with oversized discs deliver greater braking torque and superior thermal capacity compared to stock systems. The monobloc caliper construction and stainless braided hoses minimize brake fluid absorption, resulting in a firmer, more responsive pedal with improved modulation. The exclusive disc ventilation system improves cooling capacity and increases resistance to thermal-shock cracking by over 40% versus conventional designs.