-11%
Click to zoom in
SPL Parts Eccentric Lockout Kit for BMW F8X and G8X M2, M3, and M4
SPL EL F8X eliminates the stock BMW rear eccentric bolts at both the toe arm and camber arm positions so rear alignment stays where it is set under high cornering loads. Adjustable rear toe arms and rear upper arms are required to retain toe and camber adjustment after the stock eccentric bolts are removed.
Key Features
- Eliminates stock eccentric bolt slip that causes rear alignment drift under load
- Locks both the rear toe arm and rear camber arm eccentric positions in a single kit
- CNC machined from 6061-T6 aluminum for a zero slip fit
- Zinc plated grade 10.9 bolts and lock nuts for corrosion resistance and high clamping strength
- Made in the USA
Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 2014-2021 | BMW | M2 | F87 |
| 2014-2021 | BMW | M3 | F80 |
| 2014-2021 | BMW | M4 | F82, F83 |
| 2021-2025 | BMW | M2 | G87 |
| 2021-2025 | BMW | M3 | G80 |
| 2021-2025 | BMW | M4 | G82, G83 |
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | SPL EL F8X |
| Lockout plate material | 6061-T6 aluminum, CNC machined |
| Hardware | Zinc plated grade 10.9 bolts and lock nuts |
| Country of origin | United States |
What's Included
- Rear toe arm and rear camber arm eccentric lockout plates for both rear corners
- Grade 10.9 bolts, lock nuts, and washers for toe and camber arm positions
About SPL Parts
SPL Parts engineers CNC machined suspension hardware for BMW and Mazda MX-5 platforms, focused on eliminating factory bushing deflection and slip points to keep alignment settings stable under sustained track and autocross loads.
FAQ
Do I need adjustable control arms to use this kit?Yes. Adjustable rear toe arms and rear upper arms are required to set toe and camber after the stock eccentric bolts are eliminated.
Does one part number cover both the F8X and G8X chassis?Yes. The rear eccentric bolt configuration is consistent across both generations, so this single kit fits F8X and G8X M2, M3, and M4 models.
Does this kit lock the toe position, the camber position, or both?This kit locks both the rear toe arm and rear camber arm eccentric positions in one combined purchase.
What material are the lockout plates made from?The plates are CNC machined from 6061-T6 aluminum.
Is this kit for one side of the car or the full car?The kit is sold as a complete set for both rear corners of one car.
Can this kit be installed without adjustable arms already on the car?The kit can be installed at the same time as adjustable rear toe and camber arms, but the stock eccentric bolts should not be removed without adjustable arms in place to retain alignment range.
What hardware grade is used?The kit uses zinc plated grade 10.9 bolts and lock nuts for a zero slip clamping force.
Is this kit made in the USA?Yes. SPL Parts manufactures this kit in the United States.
Installation Instructions
- Raise and safely support the vehicle, then remove the rear wheels.
- Remove the factory eccentric bolts at the rear toe arm and rear camber arm positions.
- Install adjustable rear toe arms and rear upper arms if not already installed.
- Position the SPL lockout plates at the toe and camber arm mounting points and install the included grade 10.9 bolts, washers, and lock nuts.
- Set rear toe and camber using the adjustable arms, torque all hardware to specification, and have the vehicle professionally aligned.
Hardware
Engine hardware, fasteners, and mounting hardware kits for builds, fabrication, and suspension work are stocked at Black Ops Auto Works. Shop ARP engine bolts and stud kits, suspension mounting hardware from Fox and Rock Krawler, bumper mount kits, tie rod clamps, joint retainer tools, and single and kit-packaged hardware for domestic, import, and off-road platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 945 Hardware SKUs across engine hardware, suspension mounting hardware, and single-piece or kit-packaged fasteners. What This Collection Covers Hardware groups together the fasteners, mounting kits, clamps, and small components that hold engines, suspension systems, and accessories together. This includes ARP engine hardware such as intake manifold bolts and cam bolt kits, suspension mounting hardware from Fox and Rock Krawler for shock and steering stabilizer installs...
View Hardware Products
Hardware Kits - Other
Hardware kits and fastener assortments for engine builds, suspension installs, body and trim jobs, and off road rigs are stocked at Black Ops Auto Works. Shop ARP bolt and stud kits, brake caliper hardware, suspension bushing hardware, leaf spring hardware kits, security fastener kits, and general clip and retainer assortments across domestic and import platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 593 Hardware Kits - Other SKUs across engine, suspension, body, and lighting hardware categories. What This Category Covers The Hardware Kits - Other category groups together fastener kits and hardware assortments that do not fall under a single dedicated part category. Coverage spans engine fastener kits like cam bolts and intake manifold bolts, suspension hardware including bushing pivot washers and leaf spring hardware, seat belt mounting hardware, security hardware fo...
View Hardware Kits - Other Products
SPL Parts
SPL Parts titanium and chromoly suspension components for 350Z, 370Z, GT-R, S13, S14, S15, WRX STI, EVO, BMW M3, Supra, BRZ and track builds are stocked at Black Ops Auto Works. Shop adjustable toe arms, tension rods, control arms, tie rods, camber arms, end links, bushings and alignment lockout kits. Every SPL Parts product is filterable by year, make, model, trim, suspension layout and axle position so the correct part ships the first time. Black Ops Auto Works carries 190 SPL Parts SKUs across adjustable arms, steering links, bearings, bushings and alignment hardware. What This SPL Parts Collection Covers SPL Parts develops competition-focused suspension links and alignment components for import platforms, sports cars and track vehicles. Precision adjusters, high-strength materials and spherical bearings support repeatable geometry settings under load. Adjustable arms and links Toe arms, camber arms, traction arms, tension rods and control arms allow a qualified alignment sho...
View SPL Parts Products