Brembo GT-M Big Brake Kit — BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34) 2014–2016 (Rear, 345x28 4-Pot)
Genuine Brembo GT-M/GT-S/GT-R 4-piston monobloc rear big brake kit engineered for the 2014–2016 BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34). Upgrade to Brembo's 345x28mm 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-M (4-piston Monobloc) |
| Disc size | 345 × 28 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, Silver, Yellow |
| Minimum wheel size | 17″ |
| Axle | Rear |
| TÜV/KBA | Not approved — contact AME for regional compliance |
| Road use | ✓ Street legal |
What's included in this Brembo GT-M kit
- 2× Brembo GT calipers (colour of choice)
- 2× 2-piece floating rotors 345x28mm (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-M
- Greater thermal capacity: 345mm 2-piece floating rotor dissipates heat faster than OEM discs, delivering fade-free performance under sustained heavy braking.
- Stiffer, more linear pedal feel: 4-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.
- 4 caliper colours: Match your wheel and interior accents with Black, Red, Silver, Yellow.
Fits: BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34) (2014–2016, Rear axle)
Designed as a direct upgrade for the OEM braking system on the 2014–2016 BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34).
- 2014 BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34)
- 2015 BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34)
- 2016 BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34)
Minimum wheel size: 17″ (recommended 18″ for optimal caliper clearance).
Installation
- Professional workshop fitment recommended
- Average install time: 2–3 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 2014–2016 BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34)?
- Yes — this 4-piston GT-M front kit is engineered specifically for the 2014–2016 BMW 328I XDRIVE GRANTURISMO / TOURING (EXCLUDING M-SPORT BRAKES) (F31 / F34) rear axle at OEM ride height. If your car is lowered more than 25mm or has non-standard wheels under 17″, contact us first.
- What's the difference between GT-M, GT-S, GT-R?
- All three use the same physical caliper body; they differ in internal piston size, pad compound, and rotor pattern. GT-M is the street-oriented base tier, while GT-S and GT-R add progressively more aggressive track capability.
- 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 260°C). We recommend Motul RBF600 for street and RBF660 for track use.
- Do I need wheel spacers?
- No — all Brembo GT-M kits are designed to fit within OEM wheel offset and caliper clearance specifications for this fitment. A minimum 17″ wheel is required.
