What is the difference between the SPL ELT F8X, the SPL ELC F8X, and the combined SPL EL F8X?

These three kits address different eccentric bolt positions on the same platforms. The ELT F8X locks out the rear toe arm eccentric bolts only. The ELC F8X locks out the rear camber arm eccentric bolts only. The combined EL F8X locks out both toe and camber in a single purchase. For builds where only the toe arm is a concern, or where the camber arm is already addressed separately, the ELT F8X is the focused and most cost-effective choice. For a complete rear eccentric lockout in one transaction, the combined EL F8X is more efficient.

Does the SPL ELT F8X fit the G8X generation M2, M3, and M4?

Yes. The SPL ELT F8X fits both the F8X generation (2014-2021 M2, M3, M4) and the G8X generation (2022+ M2, M3, M4) under the same part number. It also fits all 2002+ BMW Z4 models, making it one of the broadest-coverage eccentric lockout kits in the SPL lineup.

Why does the BMW Z4 use the same eccentric lockout kit as the F8X and G8X M cars?

The rear toe arm eccentric bolt configuration on the Z4 shares compatible geometry with the F8X and G8X rear suspension platforms, allowing a single SPL lockout kit to serve all three chassis. This is a function of BMW's shared rear subframe architecture across multiple performance platforms.

Do I need adjustable rear toe arms before installing the SPL ELT F8X?

Yes. Removing the factory eccentric bolt eliminates the only factory mechanism for adjusting rear toe. Without adjustable rear toe arms installed, rear toe cannot be set or corrected after the lockout plates are in place. SPL Parts recommends the SPL RTA F8X rear toe arms for F8X and G8X applications; these should be installed before or at the same time as this lockout kit.

What hardware is included in the SPL ELT F8X kit?

The kit includes CNC-machined 6061-T6 aluminum lockout plates, CAD-plated grade 10.9 bolts, lock nuts, and washers for both rear toe arm positions. It is sold as a complete one-car kit at $65.00. Part number: SPL ELT F8X.

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Description

SPL Parts Rear Toe Eccentric Lockout Kit for F8x BMW M2 / M3 / M4

The SPL Parts ELT F8X eliminates that variable. CNC-machined 6061-T6 aluminum lockout plates replace the factory eccentric bolt at both rear toe arm positions, held in place by CAD-plated grade 10.9 bolts and lock nuts. The lockout design removes rotation entirely; the toe arm connection becomes mechanically fixed rather than friction-dependent. Rear toe holds its set value through the full session, whether that’s a 20-minute track rotation or a back-to-back autocross run. This is the toe arm lockout only. For builds that also need the camber eccentric addressed, the SPL ELC F8X handles the camber position separately; or the combined SPL EL F8X kit addresses both positions in one purchase.

Features

Eliminates factory rear toe arm eccentric bolt at both rear corners; replaces with mechanically fixed CNC-machined 6061-T6 aluminum lockout plates
CAD-plated grade 10.9 bolts and lock nuts; corrosion-resistant plating and significantly stronger than factory hardware; cannot rotate under sustained lateral load
Toe arm only; for camber lockout on these platforms see the SPL ELC F8X; for a combined toe and camber kit in one purchase see the SPL EL F8X
Prevents rear toe from shifting mid-session; rear alignment set on the rack stays consistent through hard use
Includes washers and grade 10.9 bolts for both rear toe arm positions; complete toe eccentric lockout for one car
Made in the USA

Specifications

Material: 6061-T6 aluminum
Hardware: Class 10.9 metric
Replaces: OEM rear eccentric bolts
Required: Adjustable arms must be used to retain alignment range — see Notes
Origin: Made in the USA

Applications

BMW M2: F87, G87 | 2016-present
BMW M3: F80, G80, G81 | 2014-present
BMW M4: F82, F83 G82, G83 | 2014-present

Complete the Kit

Adjustable Bumpsteer Rear Toe Links for F8X BMW M2 / M3 / M4

Notes

Pair with adjustable rear toe links (RTA F8X) to retain toe adjustability
SPL components are made-to-order in the USA; build time will be confirmed at the time of order

Frequently Asked Questions

Is this the same as the combined SPL EL F8X kit that covers both toe and camber? No. The ELT F8X covers only the rear toe arm eccentric bolt. The combined EL F8X addresses both the rear toe arm and rear camber arm eccentric bolts in a single purchase. The ELC F8X covers only the camber arm eccentric. For builds that need both positions locked out and want to do it in one transaction, the EL F8X combined kit is more efficient. For builds where only the toe arm is the concern, or where the camber is handled separately, the ELT F8X is the focused choice.
Do I need the SPL RTA F8X to use this kit? Yes. Once the factory toe arm eccentric bolt is removed, there is no longer a factory mechanism for setting or adjusting rear toe. Adjustable rear toe arms are required to set toe after installation. SPL Parts produces the RTA F8X for this purpose; it is sold separately and should be ordered at the same time as this lockout kit.
Why does this kit fit the BMW Z4 alongside the F8x and G8x M cars? The BMW Z4 rear suspension shares compatible rear toe arm eccentric bolt geometry with the F8x and G8x platforms, allowing the same lockout hardware to serve all three chassis. This is a function of shared BMW rear subframe architecture across their performance car lineup. The SPL ELT F8X fits all 2002+ Z4 models under the same part number.
Will this kit eliminate the issue of rear toe shifting during back-to-back track runs? Yes. The lockout design mechanically prevents the toe arm from rotating under load, which is the root cause of rear toe shifting during sustained track use. Once the ELT F8X is installed alongside adjustable toe arms set to the desired value, rear toe will remain at that value regardless of the number of laps or the lateral forces applied.
What hardware is included in the SPL ELT F8X? The kit includes CNC-machined 6061-T6 aluminum lockout plates, CAD-plated grade 10.9 bolts, lock nuts, and washers for both rear toe arm positions.

About SPL Parts

SPL Parts is a USA-based manufacturer of high-performance suspension components engineered for both professional racing and demanding street applications. Built on the core principles of strength, lightweight construction, low friction, and precision, SPL Parts products deliver the adjustability and alignment performance required by top race teams and discerning enthusiasts alike. Every component is produced using USA-sourced, certified materials and machined by experienced local shops to exacting tolerances. Professional TIG welders ensure maximum weld integrity, while each part is hand-fitted and treated with anti-seize and 3M internal panel coating for lasting protection. SPL Parts conducts all research and development in-house, allowing the team to leverage firsthand product knowledge and deliver unmatched customer support. Their suspension components feature innovative adjuster designs for quicker, more precise alignments, and utilize spherical bearings with Teflon liners that are self-cleaning, self-lubricating, and built for long service life. From concept to assembly, SPL Parts is made with pride in the USA by skilled machinists and welders who are committed to quality, innovation, and performance.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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SPL Parts Rear Toe Eccentric Lockout Kit for F8x BMW M2 / M3 / M4 [SPLELTF8X]

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SPL Parts Rear Toe Eccentric Lockout Kit for F8x BMW M2 / M3 / M4

Features

Specifications

Applications

Complete the Kit

Notes

Frequently Asked Questions

About SPL Parts

Reviews