DBA DBA43050S-10 4000 Series T3 Slotted Front Rotor for 2018-2021 Subaru WRX STI

Vehicle Fitment

• 2018-2021 Subaru WRX STI Base/Limited/Sport/Sport-tech
• 2018 Subaru WRX STI Type RA
• 2019 Subaru WRX STI S209
• 2020 Subaru WRX STI Kanrai Edition
• 2024 Subaru WRX TR

Fitment Notes

• Front position only, sold individually
• For vehicles equipped with Brembo 6-piston calipers
• Uni-directional slot design, no left/right specific rotors

Features

• 4000 Series T3, direct replacement single-piece performance rotor
• Black high temperature coating
• XG150 High Carbon Alloy Iron
• Thermal Stability Profiling (TSP)
• Handles increased stress and heat under intense braking
• Patented Kangaroo Paw ventilation
• 144 diamond and teardrop patterned pillars
• Up to 30% increase in surface area over straight vane design
• Up to 20% improvement in cooling efficiency
• Tri-symmetrical curve slots, decreased vibration and noise
• Increases out-gassing exit locations for brake pad friction gases
• Improved brake stop uniformity and efficacy
• Universal slot design, no left/right specific rotors
• Temperature monitoring shows peak braking temperatures
• Paint protection on non-friction areas, reduces rust

Specifications

• Series: 4000 T3
• Position: Front
• Rotor style: Slotted
• Rotor material: High Carbon
• Rotor coating: Coated, black high temperature, non-cryo treated
• Rotor type: Vented
• Outside diameter: 340mm
• Overall height: 53mm
• Nominal thickness: 30mm
• Discard thickness: 30mm
• Center hole diameter: 58.02mm
• Stud/lug hole quantity: 10
• Weight: 24 lbs
• Stopping power: 5/5
• Noise level: 1/5

Included Components

• 1x 4000 Series T3 Slotted Front Rotor

Product Description

DBA 4000 Series T3 Slotted Rotor. Direct replacement single-piece brake rotor, designed for drivers seeking upgraded performance braking above and beyond standard OE levels. Cast from XG-150 high carbon alloyed iron and undergoing Thermal Stability Profiling (TSP), DBA's metallurgy handles the increased stress and heat generated under intense braking applications, time and time again.

Patented Kangaroo Paw ventilation implements a series of 144 diamond and teardrop patterned pillars, achieving up to a 30% increase in surface area and 20% improvement in cooling efficiency compared to a traditional straight vane design. Tri-symmetrical curve slots decrease vibration and noise for a quieter, smoother brake pedal feel, while increasing the number of out-gassing exit locations for brake pad friction gases improves brake stop uniformity and efficacy. Temperature monitoring markings show the driver peak braking temperatures, and paint protection on non-friction areas reduces rust formation.

Fits 2018-2021 Subaru WRX STI (all trims, including S209 and Type RA) and 2024 Subaru WRX TR, for vehicles equipped with Brembo 6-piston front calipers. Front position, uni-directional slot design eliminates the need for left/right specific rotors. Sold individually.