TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — verified local product image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — verified local product image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image
TEI Brakes — GTS6 Six-Piston Front Brake Kit — supplemental local image

GTS6 Six-Piston Front Brake Kit

Custom-built — ships in 2-3 weeks
$1,699.00
Wheel Size
Material
Caliper Color
VIN plate visible through the base of the windshield, driver's side
Windshield (driver's side)

Visible from outside, lower windshield corner

VIN sticker on the driver's door jamb
Driver's door jamb

Open the door to see this label

Your VIN is a 17-character code. It's most commonly found in one of these two spots, or on your vehicle registration/insurance card.
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Need Replacement Pads?
Replacement Brake Pads — GTS6 (Competition Upgrade)
From $199.00
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Description Specifications Brake Pads Shipping information

GTS6 is TEI's six-piston Racing caliper, built for high-performance cars like the M3/M4, Porsche, and AMG models where every part — caliper, piston layout, pad compound — is chosen for maximum controllable braking force. A monoblock-forged caliper, CNC-machined from a single billet of 6082 aerospace aluminum, spreads 50.21cm² of clamping area across six opposed pistons and pairs with a slotted rotor cut in TEI's blade-pattern design, running M2 metallic pads standard with R1/R2 track compounds available for competition use.

Fits 18–19-inch wheels. Includes caliper, rotor, brake pads, and mounting hardware.

GTS6 is TEI's six-piston Racing caliper, built for high-performance cars like the M3/M4, Porsche, and AMG models where every part — caliper, piston layout, pad compound — is chosen for maximum controllable braking force. A monoblock-forged caliper, CNC-machined from a single billet of 6082 aerospace aluminum, spreads 50.21cm² of clamping area across six opposed pistons and pairs with a slotted rotor cut in TEI's blade-pattern design, running M2 metallic pads standard with R1/R2 track compounds available for competition use.

Fits 18–19-inch wheels. Includes caliper, rotor, brake pads, and mounting hardware.
  • Vendor TEI Brakes
  • SKU GTS6-18-355X32MM-STD-SIL
  • Vehicle fit High-performance vehicles (M3/M4, Porsche, AMG)
  • Vehicle weight range 1.5–1.8 t
  • Wheel fit 18-19"
  • Install position Front
  • Bore fit 406/422
  • Rotor size options 355×32D57.5 / 378×35.6D56
  • Caliper material Aluminum alloy 6082/T651
  • Process Monoblock forged
  • Piston count 6
  • Piston diameter Ø27×2 / Ø32×2 / Ø38×2
  • Total piston area 50.21cm²
  • Caliper weight 4.05kg
  • Caliper dimensions 317.6×185×86mm
  • Pad area 80.2cm²
  • Pad thickness 18mm
  • Dust protection Internal dust seal
  • Oil routing External fluid routing
  • Standard compound M2
  • Upgrade option R1 / R2 optional — for track or competition use; not recommended for routine street driving.

Every TEI kit is custom-built — bells and brackets machined for your vehicle — and ships directly from our Guangzhou facility. Steel-disc kits typically ship in 2–3 weeks, plus transit time; exact times for your destination are shown at checkout.

We ship worldwide by express courier with tracking, and you're welcome to use your own freight forwarder — just send us the warehouse contact and reference number before dispatch. Import duties and taxes, if any, are set by your customs authority and are the recipient's responsibility. See our Shipping page for full details, or contact us for a shipping estimate before ordering.

Floating vs. Fixed Calipers

See why a fixed multi-piston caliper delivers a more direct, linear pedal feel.

Floating caliperTypical OEM

A single piston acts on the inner pad. The caliper body then slides on its guide pins to bring the outer pad into contact.

Floating caliper animation The inner piston moves first, then the caliper body floats outward before the outer pad clamps. Rotor Hydraulic pressure PistonOuter pad Inner pad Caliper body floats 1. Piston pushes inner pad2. Body floats outward3. Outer pad clamps

Two sequential steps create dead travel and a slight delay in pedal feel.

Fixed multi-piston caliperTEI design

Pistons on both sides move directly and at the same time, clamping the rotor in one controlled step.

Fixed caliper animation Opposing pistons and pads move together to clamp the rotor simultaneously. Rotor PressurePressure Inner padOuter padFixed caliper body 1. Pressure builds2. Pistons move together3. One-step clamp

Clamping force F = P × S: hydraulic pressure multiplied by total piston area. The response is direct and linear.