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A Copper-Free Street Pad Rated to 438 Degrees for the GR Four-Pot
DBA DB15147SP is the front axle set of four Street Performance pads used across Toyota's GR Corolla and the 1.6-litre turbo GR Yaris. The compound is a copper-free semi-metallic carbon fibre with an F-F friction rating, an average coefficient of 0.35, and stable friction up to 438 C (820 F), which puts it well past what an OE pad will hold on a spirited road drive.
Key Features
- SP compound delivers effective friction response with lower wear and less dust than the OE pad.
- Copper-free semi-metallic carbon-fibre friction material.
- F-F class friction rating with a 0.35 average coefficient, consistent to 438 C (820 F).
- Chamfered, slotted and shimmed, the full noise-control package.
- TSP scorched friction surface for a shorter bed-in.
- The axle set is made up of a left-hand inner, a right-hand inner and two outer pads.
- Supersedes the earlier DB15147 part number.
Fitment
| Vehicle | Axle and restrictions |
|---|---|
| Toyota GR Corolla | 2023 onward, front axle |
| Toyota GR Yaris | 1.6 turbo, 2020 onward, front axle |
European catalogue data ties DB15147SP to the GR Yaris 1.6 turbo with OE reference 0446552370 as well as the GR Corolla, so a GR-Corolla-only fitment claim understates the coverage.
The inner pads are handed. Note which side each came from when DBA DB15147SP is fitted.
Specifications
| Detail | Value |
|---|---|
| Brand | DBA |
| MPN | DB15147SP |
| Product line | Street Performance (SP) |
| Axle | Front |
| Friction material | Copper-free semi-metallic carbon fibre |
| Friction class | F-F |
| Average coefficient | 0.35 |
| Temperature stability | To 438 C / 820 F |
| Length | 133.5 mm |
| Width | 85.5 mm |
| Thickness | 14.7 mm |
| Chamfer | Yes |
| Slots | Yes |
| Shims | Yes |
| Set contents | LH inner, RH inner and two outer pads |
| Pads per box | 4 |
| Packaged size | 13.3 x 8.5 x 8.2 cm |
| Packaged weight | 2.34 kg |
| OE reference | 0446552370 |
| Supersedes | DB15147 |
| UPC | 9316391488510 |
| Warranty | 12 months / 20,000 km / 12,000 miles |
What's Included
- One DBA DB15147SP axle set of four brake pads
- Anti-noise shims fitted to the pads
About DBA
DBA's SP compound is the street tier of the company's friction range: the goal is a firmer, more consistent pedal than OE without the dust and noise penalty of a track compound, and without copper in the mix. DBA DB15147SP is the SP formulation in the front pad shape shared by Toyota's GR Corolla and GR Yaris.
Related Parts
- DBA SP Performance rear brake pads for 2022+ Toyota GR Corolla
- DBA 4000 Series slotted rear rotor for GR Corolla and GR Yaris
FAQ
Which axle does this set cover and how many pads come in the box?It is a front axle set of four pads, enough for both front calipers on one car. Rear pads are a separate DBA part number.
Is this a GR Corolla-only pad?No. European catalogue data lists the same part against the GR Yaris 1.6 turbo, with OE reference 0446552370.
Does it contain copper?No. The SP compound is copper-free, which matters where copper-content brake legislation applies.
How hot can it run?The published friction rating is F-F with a 0.35 average coefficient, consistent up to 438 C or 820 F.
How does it compare to the OE pad?DBA positions SP as more responsive than OE with lower wear and reduced dust, rather than as a track compound.
Are the pads handed?Yes. The set contains a left-hand inner, a right-hand inner and two outer pads, so keep track of the sides during fitting.
Is the pad chamfered?Yes, chamfered, slotted and shimmed, which is the full quiet-running specification in DBA's range.
Which rotors does DBA recommend?Street Series T2 or 4000 Series T3 slotted rotors.
What is the warranty term?12 months or 20,000 km / 12,000 miles.
Installation Instructions
- Have the pads fitted by a qualified technician, per DBA's guidance for its friction products.
- Raise the car, remove both front wheels and note which side each inner pad came from, because the set contains a handed left and right inner pad.
- Inspect the front rotors for scoring and measure thickness against the minimum before fitting new friction.
- Clean the carrier abutments and slider pins, then retract the pistons squarely.
- Fit the left-hand inner, right-hand inner and two outer pads with their shims, keeping the chamfers oriented as the carrier allows.
- Refit the calipers, pump the pedal until firm, and confirm both wheels turn without drag.
- Bed in on a clear road: from 50 km/h (30 mph) brake down to 10 km/h (5 mph) with medium pedal pressure without coming to a stop.
- Repeat that cycle about ten times with roughly 30 seconds of rolling cool-down between each one.
- Avoid heavy or prolonged braking for the first 200 km (120 miles) so the friction transfer layer stabilises.
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