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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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SPL Parts
SPL Parts Adjustable Front Caster Rod Bushings for 2021-2026 BMW M3 and M4 (SPL CRB G8X)
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits 2021-2026 BMW M3 and M4 (Base, Competition, xDrive, CS, and CSL).
SPL Parts Front Caster Rod Bushings (CRB) replace the factory flexible rubber bushings with high-performance, low-friction articulating spherical bearings. By eliminating bushing deflection, these components maintain optimum suspension geometry under load, providing sharper braking response and significantly improved steering feedback during aggressive cornering.
Each housing is CNC machined from 6061-T6 aluminum and features an outer knurl for a secure fit. These bushings utilize massive 1-inch FK Racing Bearings equipped with self-lubricating Teflon liners for maximum durability and maintenance-free operation. The innovative offset bearing spacers provide +/- 2 degrees of caster adjustment, allowing for precision alignment tuning on lowered vehicles or track-focused setups.
- 6061-T6 aluminum bearing housings with precision outer knurling
- CNC machined offset spacers provide +/- 2 degrees of caster adjustment
- Massive 1-inch FK spherical bearings with self-lubricating Teflon liners
- Eliminates suspension deflection to maintain consistent geometry
- Proudly engineered, manufactured, and assembled in the USA
- Sold as a pair; replaces bushings in factory arms (arms not included)
- Manufacturer Part Number: SPL CRB G8X
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2023,2025 | BMW | M3 | Base |
| 2021-2023,2025 | BMW | M3 | Competition |
| 2022-2023,2025 | BMW | M3 | Competition xDrive |
| 2021-2026 | BMW | M4 | Base |
| 2021-2026 | BMW | M4 | Competition |
| 2022-2026 | BMW | M4 | Competition xDrive |
| 2025 | BMW | M4 | CS |
| 2023 | BMW | M4 | CSL |
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
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Sat: 9:00 am – 2:00 pm
Sun: Closed
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SPL Parts Adjustable Front Caster Rod Bushings for 2021-2026 BMW M3 and M4 (SPL CRB G8X)
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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Fits 2021-2026 BMW M3 and M4 (Base, Competition, xDrive, CS, and CSL).
SPL Parts Front Caster Rod Bushings (CRB) replace the factory flexible rubber bushings with high-performance, low-friction articulating spherical bearings. By eliminating bushing deflection, these components maintain optimum suspension geometry under load, providing sharper braking response and significantly improved steering feedback during aggressive cornering.
Each housing is CNC machined from 6061-T6 aluminum and features an outer knurl for a secure fit. These bushings utilize massive 1-inch FK Racing Bearings equipped with self-lubricating Teflon liners for maximum durability and maintenance-free operation. The innovative offset bearing spacers provide +/- 2 degrees of caster adjustment, allowing for precision alignment tuning on lowered vehicles or track-focused setups.
- 6061-T6 aluminum bearing housings with precision outer knurling
- CNC machined offset spacers provide +/- 2 degrees of caster adjustment
- Massive 1-inch FK spherical bearings with self-lubricating Teflon liners
- Eliminates suspension deflection to maintain consistent geometry
- Proudly engineered, manufactured, and assembled in the USA
- Sold as a pair; replaces bushings in factory arms (arms not included)
- Manufacturer Part Number: SPL CRB G8X
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2023,2025 | BMW | M3 | Base |
| 2021-2023,2025 | BMW | M3 | Competition |
| 2022-2023,2025 | BMW | M3 | Competition xDrive |
| 2021-2026 | BMW | M4 | Base |
| 2021-2026 | BMW | M4 | Competition |
| 2022-2026 | BMW | M4 | Competition xDrive |
| 2025 | BMW | M4 | CS |
| 2023 | BMW | M4 | CSL |
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