
The Power Stop S1138 Performance Brake Calipers are precision-engineered brake components designed for a range of BMW models, including the 1991 BMW 318i and 318is Base, as well as various 325 series models from 1984 through 1991. This front caliper pair, complete with mounting brackets, is manufactured by PowerStop, a reputable brand known for its commitment to quality and reliability in braking systems. PowerStop specializes in high-performance brake components that meet rigorous industry standards, ensuring enhanced safety and durability for automotive enthusiasts and professional applications alike.
These brake calipers are remanufactured at PowerStop’s Chicago, IL facility, where each unit undergoes a comprehensive restoration process. This includes the application of an electrostatic high-temperature red powder coating that not only provides an attractive finish but also offers superior resistance to rust and corrosion, significantly extending the service life of the calipers. The vibrant red color adds a distinctive visual appeal, making these calipers stand out behind both stock and custom wheels.
Each caliper is subjected to 100% pressure testing to verify piston operation and to prevent leaks, ensuring optimal performance and safety. The kit is meticulously assembled with new pistons, seals, slide pins where applicable, dust boots, bleeder screws, and stainless steel brake pad abutment clips. High-temperature EPDM rubber dust boots and premium silicone lubricant are utilized to guarantee smooth operation and durability under extreme conditions.
The Power Stop S1138 calipers are designed to bolt directly in place of the original equipment manufacturer (OEM) calipers, facilitating straightforward installation without the need for modifications. This ensures compatibility and fitment across the specified BMW models, providing a reliable upgrade for improved braking performance.
Key Features:
Fitment Overview:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1991 | BMW | 318i | Base |
| 1991 | BMW | 318is | Base |
| 1986-1988 | BMW | 325 | Base |
| 1984-1987 | BMW | 325e | Base |
| 1986-1987 | BMW | 325es | Base |
| 1987-1991 | BMW | 325i | Base |
| 1987-1991 | BMW | 325is | Base |
| 1988-1991 | BMW | 325iX | Base |
PowerStop has established itself as a trusted name in the automotive brake industry by consistently delivering products that combine performance, safety, and longevity. Their dedication to manufacturing excellence and rigorous testing protocols ensures that every brake caliper meets the highest standards demanded by both enthusiasts and professionals. Choosing the Power Stop S1138 calipers means investing in a reliable braking solution that enhances the driving experience while maintaining the integrity of your vehicle’s braking system.