01
Real experience
We test before we recommend.
PRODUCT DESCRIPTION
The new Aero4 Forged Four Piston Caliper provides high-strength braking for the street or track. It incorporates race-bred technology into a body design with wide-ranging adaptability. Radial mounting, multiple piston volume options, and a rotor diameter range from 12.88” to 15.00” give this caliper the versatility to meet all types of high-power braking requirements. The new Aero4 is the latest innovation in the W4A / W6A caliper series. It has been redesigned with internal fluid ports that eliminate external fluid crossover tubes and the massive center bridge assembly.
The Aero Series body is stress-flow forged from a premium-grade aluminum alloy block. Stress-flow forging realigns the internal grain structure of the metal to flow within the contour of the caliper body. This process eliminates the internal grain structure stresses and interruptions that occur when machining a straight block. The result is a caliper with superior clamping efficiency and maximum resistance against fatigue, stress, and deflection under load.Rotor Dimensions
| Rotor Width (In) | 1.25 |
| Rotor Diameter (In) | 15.00 |
Pad Dimensions
| Pad Area (In²) | 11.1 |
| Pad Volume (In³) | 5.2 |
Service Class & Material
| Material | Forged Aluminum |
| Weight (Lbs) | 6.9 |
Colors & Finish
| Color | Anodized |
| Finish | Type III Anodize |
Mounting
| Mounting Center (In) | 7.09 |
| Mounting Position | |
| Mount Side | Universal |
| Mount Type | Radial |
Specifications
Rotor Compatibility
| Rotor Width (In) | 1.25 | ||
| Max Rotor Width (In) | 1.10 | ||
| Min Rotor Width (In) | 1.00 | ||
| Max Rotor Diameter (In) |
| Min Rotor Diameter (In) |
12.19 |
|
Brake Pad Specifications
| Brake Pad Type 1 | 6617 |
| Brake Pad Type 2 | N-A |
| Brake Pad Type 3 | N-A |
| Total Pad Area (In²) | 11.1 |
| Total Pad Volume (In³) | 5.2 |
| Mounting |
Piston
Specifications| Piston Diameter 1 (In) | 1.12 |
| Piston Diameter 2 (In) | 1.12 |
| Piston Diameter 3 (In) | |
| Total Piston Area (In.²) |
Mounting Specifications
| Mount Type | Radial |
| Mount Side | Universal |
| Mount Center (In) | |
| Mount Hole Size (In) | 0.45 |
| Mount Height (In) | 2.09 |
| Inlet Thread Size | 1/8-27 NPT |










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
01
We test before we recommend.
02
We help you choose the right part.
03
Only trusted manufacturers.
04
Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.