GMC Big Brake Kits SSBC USA Evasive Motorsports: GT Big Brake Kit Brembo 1Q1.9619A GT Front Big Brake System with Drilled Rotors for 12 Brembo GT Big Brake Kits Reid Performance. Brembo GT BM Big Brake Kit GMC 1500 SIERRA (T1XX) 20192026 (Front, 412x38 8 Pot) Genuine Brembo GT BM 8 piston monobloc front big brake kit engineered for the 20192026 GMC 1500 SIERRA (T1XX). Upgrade to Brembo's 412x38mm 2 piece floating disc assembly for greater thermal capacity, reduced fade, and linear pedal feel on the street or the track. Key specifications Caliper family Brembo GT BM (8 piston Monobloc) Disc size 412 38 mm 2 piece Bell material CNC machined 7075 T6 aluminium, hard anodised black Rotor patterns available Drilled (standard), Slotted Type 1 (street track), Slotted Type 3 (aggressive track racing use only), Slotted Type 5 (racing use only) Caliper colours Black, Red, Yellow Minimum wheel size 20 Axle Front TV KBA Not approved contact AME for regional compliance Road use Street legal What's included in this Brembo GT BM kit 2 Brembo GT calipers (colour of choice) 2 2 piece floating rotors 412x38mm (LH + RH) 1 Brembo brake pad set (street performance compound) 2 CNC machined aluminium caliper mounting brackets 1 set of stainless steel braided brake lines (DOT compliant) Complete mounting hardware (bolts, washers, pins, clips) Brembo installation instructions (EN IT) Why upgrade to Brembo GT BM Greater thermal capacity: 412mm 2 piece floating rotor dissipates heat faster than OEM discs, delivering fade free performance under sustained heavy braking. Stiffer, more linear pedal feel: 8 piston monobloc construction eliminates caliper flex, giving you the same pedal response on lap 1 and lap 20. Lower unsprung weight: 2 piece floating assembly reduces rotational mass by up to 22% per wheel vs stock single piece OEM rotors. Italian OEM quality: Built on the same production line that supplies Porsche, Ferrari, and AMG performance models from the factory. 3 caliper colours: Match your wheel and interior accents with Black, Red, Yellow. Fits: GMC 1500 SIERRA (T1XX) (20192026, Front axle) Designed as a direct upgrade for the OEM braking system on the 20192026 GMC 1500 SIERRA (T1XX). 2019 GMC 1500 SIERRA (T1XX) 2020 GMC 1500 SIERRA (T1XX) 2021 GMC 1500 SIERRA (T1XX) 2022 GMC 1500 SIERRA (T1XX) 2023 GMC 1500 SIERRA (T1XX) 2024 GMC 1500 SIERRA (T1XX) 2025 GMC 1500 SIERRA (T1XX) 2026 GMC 1500 SIERRA (T1XX) Minimum wheel size: 20 (recommended 21 for optimal caliper clearance). Important compatibility notes Brembo GT Systems are designed for vehicles at original ride height. Increased ride height is not compatible with the brake lines included in these systems. Installation Professional workshop fitment recommended Average install time: 23 hours per axle Tools required: standard caliper brake tools + torque wrench + brake bleeding kit Brake fluid: DOT 4 (Brembo specification), bleed required after install Fitment partner network: AME Motorsport partners across Sydney, Melbourne, Brisbane contact us for referrals Frequently asked questions Will this Brembo kit fit my 20192026 GMC 1500 SIERRA (T1XX)? Yes this 8 piston GT BM front kit is engineered specifically for the 20192026 GMC 1500 SIERRA (T1XX) front axle at OEM ride height. If your car is lowered more than 25mm or has non standard wheels under 20, contact us first. Are brake pads included? Yes one set of Brembo street performance brake pads is included. Optional upgrades to Pagid, Ferodo, or Schaffen compounds are available. What brake fluid does Brembo recommend? DOT 4 meeting Brembo's specification (minimum dry boiling point 260C). We recommend Motul RBF600 for street and RBF660 for track use. Do I need wheel spacers? No all Brembo GT BM kits are designed to fit within OEM wheel offset and caliper clearance specifications for this fitment. A minimum 20 wheel is required.