StopTech Premium Rotors for 2018-2021 STi
StopTech / PowerSlot replacement rotors for the 2018-2021 Subaru STi. Sold individually, price is for one rotor. These are only available with the slotted options. Please double check your quantities as these rotors are sold individually and are different for front and rear, left and right.
Vehicle Fitment:
2018-2021 Subaru STi
Shipping Times:
Availability varies, feel free to contact us with the part numbers for an ETA. We try to keep the standard and slotted versions stock, but with so many options, sometimes they will have to ship directly from StopTech, typically in 2-5 weeks.
Purchase Includes:
Rotors are sold individually. Price is for one rotor.
Left Hand vs Right Hand?
LH and RH is determined by driver position.
From the driver seat, which side is the rotor on?
More Info:
Excessive heat can cause resins in your brake pad to vaporize or "outgas." As the brake pad wears, the used friction material turns into a fine dust. This boundary layer of heat, gas and dust builds up between the pad and rotor surfaces and inhibits performance. Here's where Power Slot's slotted brake rotors make a big difference.
Power Slot's exclusive Vac-U-Slots are machined into the rotor and help evacuate gasses and dust, shed heat, and keep the brake pad surface clean. And in wet, raining conditions, our Vac-U-Slot helps push water off the braking surface for better stopping power. For most late model truck and SUV applications and select sports cars, we also use a special Power Alloy metallurgy and directional cooling vanes to improve high temperature performance.
PowerSlot rotors are finished in a durable black e-coat on the hat, edges and internal vanes to prevent corrosion. The braking surfaces are left in a bare iron finish to improve brake pad bed-in.
Power Slot Cryo Treated Rotors:
When you need something tougher than a Power Slot rotor, but you're not quite ready for a big brake kit, try our new Power Slot Cryo rotors. We've invested in the latest state-of-the-art equipment to offer cryogenic treatment on our Power Slot rotor line.
Deep cryogenic treatment is a one-time process that permanently improves the performance and service life of metals from brake rotors and engine parts, to machine tools and gear sets. Using a proprietary computer-controlled process, the metal is cooled gradually to -300°F and then slowly returned to room temperature and heat-cycled as the final step. Although not apparent to the naked eye, the improvements to the rotor are significant. The cryogenic treatment process redistributes residual stress in the rotor giving it an extra level of protection against warping.
Vehicle Fitment:
2018-2021 Subaru STi
Shipping Times:
Availability varies, feel free to contact us with the part numbers for an ETA. We try to keep the standard and slotted versions stock, but with so many options, sometimes they will have to ship directly from StopTech, typically in 2-5 weeks.
Purchase Includes:
Rotors are sold individually. Price is for one rotor.
| Rotor Position: | Style: | Part Number: |
| Rear (LH) | Slotted |
126.47039SL *Discontinued* |
| Rear (RH) | Slotted | 126.47039SR |
| Front (LH) | Slotted | 126.47040SL *Discontinued* |
| Front (RH) | Slotted | 126.47040SR *Discontinued* |
LH and RH is determined by driver position.
From the driver seat, which side is the rotor on?
More Info:
Excessive heat can cause resins in your brake pad to vaporize or "outgas." As the brake pad wears, the used friction material turns into a fine dust. This boundary layer of heat, gas and dust builds up between the pad and rotor surfaces and inhibits performance. Here's where Power Slot's slotted brake rotors make a big difference.
Power Slot's exclusive Vac-U-Slots are machined into the rotor and help evacuate gasses and dust, shed heat, and keep the brake pad surface clean. And in wet, raining conditions, our Vac-U-Slot helps push water off the braking surface for better stopping power. For most late model truck and SUV applications and select sports cars, we also use a special Power Alloy metallurgy and directional cooling vanes to improve high temperature performance.
PowerSlot rotors are finished in a durable black e-coat on the hat, edges and internal vanes to prevent corrosion. The braking surfaces are left in a bare iron finish to improve brake pad bed-in.
Power Slot Cryo Treated Rotors:
When you need something tougher than a Power Slot rotor, but you're not quite ready for a big brake kit, try our new Power Slot Cryo rotors. We've invested in the latest state-of-the-art equipment to offer cryogenic treatment on our Power Slot rotor line.
Deep cryogenic treatment is a one-time process that permanently improves the performance and service life of metals from brake rotors and engine parts, to machine tools and gear sets. Using a proprietary computer-controlled process, the metal is cooled gradually to -300°F and then slowly returned to room temperature and heat-cycled as the final step. Although not apparent to the naked eye, the improvements to the rotor are significant. The cryogenic treatment process redistributes residual stress in the rotor giving it an extra level of protection against warping.
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