What is the difference between the SPL EL G29, the SPL ELT G29, and the SPL ELC G29?

These are three separate lockout kits for the same platforms targeting different eccentric bolt positions. The EL G29 is the combined kit; it locks out both the rear toe arm and rear camber arm eccentrics in a single purchase and is the right choice for builds addressing both positions at once. The ELT G29 is the toe arm lockout only. The ELC G29 is the camber arm lockout only. If both positions need to be addressed, the EL G29 combined kit is more efficient than buying the toe and camber kits separately.

Do I need both adjustable toe arms and adjustable rear upper arms to use this kit?

Yes. Because this kit eliminates the factory eccentric at both the toe arm and the camber arm positions, adjustable arms are required at both points after installation. Without the SPL RTA G29 for toe adjustment and the SPL RUA G29 for camber adjustment, neither setting can be set or corrected after the lockout plates are installed. Both companion arms are sold separately by SPL Parts and should be ordered at the same time.

Why do the GR Supra A90 and BMW Z4 G29 use the same lockout kit?

The GR Supra A90 and BMW Z4 G29 were developed jointly between Toyota and BMW and share the same rear suspension architecture, including the eccentric bolt configuration at both the toe and camber arm positions. This shared platform extends to the G-series BMW models that use the same rear subframe, which is why a single SPL kit covers the Supra, Z4, G2X, and G42 under one part number.

Can this kit be used if only the toe arm or only the camber arm eccentric is slipping?

Yes, though separate, more targeted kits are available. The ELT G29 covers only the toe arm eccentric and the ELC G29 covers only the camber arm eccentric. If only one position is the concern, the corresponding standalone kit is the more focused choice. If both positions need to be locked or if the goal is a complete rear eccentric elimination in one step, the EL G29 combined kit covers both.

What hardware is included in the SPL EL G29 kit?

The kit includes CNC-machined 6061-T6 aluminum lockout plates, zinc-plated grade 10.9 bolts, lock nuts, and washers for both the rear toe arm and rear camber arm positions at both rear corners. It is sold as a complete one-car kit. Part number: SPL EL G29.

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Description

SPL Parts Rear Toe Eccentric Lockout Kit for G29 BMW Z4, G2x BMW 3 / 4 Series, G42 BMW 2 Series, and A90 Toyota GR Supra

The GR Supra A90 and its BMW platform siblings have two eccentric bolts at the rear suspension; one at the toe arm and one at the camber arm; and both are susceptible to the same failure under track conditions. When lateral loads build up through sustained cornering, those bolts can rotate slightly, shifting toe and camber independently and in ways that compound each other. Toe that has drifted out makes the rear less stable under trail braking. Camber that has moved off its set value affects rear grip balance at corner exit. By the time the car is back in the pits, the alignment it was set up with is no longer what it ran, and the driver is diagnosing a handling problem that has no visible cause without going back on the alignment rack. The SPL Parts EL G29 combined eccentric lockout kit addresses both positions in one purchase. CNC-machined 6061-T6 aluminum lockout plates, zinc-plated grade 10.9 bolts, and lock nuts replace the factory eccentric bolt at both the rear toe arm and the rear camber arm positions on both rear corners. The result is a complete rear eccentric lockout; toe and camber held mechanically rather than by friction, with no slippage under load. Everything set at the alignment rack stays there through the full session.

Features

Combined kit; eliminates both rear toe arm and rear camber arm eccentric bolts at both rear corners; complete rear eccentric lockout for toe and camber in a single purchase
CNC-machined 6061-T6 aluminum lockout plates; precision-machined to SPL Parts’ tolerances
Zinc-plated grade 10.9 bolts with lock nuts; significantly stronger than factory hardware and mechanically prevent rotation under sustained cornering load
More cost-effective than purchasing the SPL ELT G29 and SPL ELC G29 separately for builds that need both positions locked
Includes washers and grade 10.9 bolts for both rear toe arm and rear camber arm positions; complete lockout hardware for one car
Made in the USA

Specifications

Material: 6061-T6 aluminum
Hardware: Class 10.9 metric
Replaces: OEM rear eccentric bolts

Applications

BMW 220i: G42 | 2021-present
BMW 230i: G42 | 2021-present
BMW 318d: G20, G21 | 2019-present
BMW 320d: G20, G21 | 2019-present
BMW 330d: G20, G21 | 2019-present
BMW 330e: G20, G21 | 2019-present
BMW 318i: G20, G21 | 2019-present
BMW 320i: G20, G21 | 2019-present
BMW 330i: G20, G21 | 2019-present
BMW 340i: G20, G21 | 2022-present
BMW 420d: G22, G23, G24 | 2020-present
BMW 430d: G22, G23, G24 | 2020-present
BMW 420i: G22, G23, G24 | 2020-present
BMW 430i: G22, G23, G24 | 2020-present
BMW M240i: G42 | 2021-present
BMW M340i: G20, G21 | 2019-present
BMW M440i: G22, G23, G24 | 2020-present
BMW Z4 sDrive20i: G29 | 2019-present
BMW Z4 sDrive30i: G29 | 2019-present
BMW Z4 M40i: G29 | 2019-present
Toyota GR Supra: A90, A91 | 2020-present

Notes

Pair with adjustable rear toe links (RTA G29) 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

What is the difference between the SPL EL G29, the SPL ELT G29, and the SPL ELC G29? These are three separate lockout kits for the same platforms targeting different eccentric bolt positions. The EL G29 is the combined kit; it locks out both the rear toe arm and rear camber arm eccentrics in a single purchase and is the right choice for builds addressing both positions at once. The ELT G29 is the toe arm lockout only. The ELC G29 is the camber arm lockout only. If both positions need to be addressed, the EL G29 combined kit is more efficient than buying the toe and camber kits separately.
Do I need both adjustable toe arms and adjustable rear upper arms to use this kit? Yes. Because this kit eliminates the factory eccentric at both the toe arm and the camber arm positions, adjustable arms are required at both points after installation. Without the SPL RTA G29 for toe adjustment and the SPL RUA G29 for camber adjustment, neither setting can be set or corrected after the lockout plates are installed. Both companion arms are sold separately by SPL Parts and should be ordered at the same time.
Why do the GR Supra A90 and BMW Z4 G29 use the same lockout kit? The GR Supra A90 and BMW Z4 G29 were developed jointly between Toyota and BMW and share the same rear suspension architecture, including the eccentric bolt configuration at both the toe and camber arm positions. This shared platform extends to the G-series BMW models that use the same rear subframe, which is why a single SPL kit covers the Supra, Z4, G2X, and G42 under one part number.
Can this kit be used if only the toe arm or only the camber arm eccentric is slipping? Yes, though separate, more targeted kits are available. The ELT G29 covers only the toe arm eccentric and the ELC G29 covers only the camber arm eccentric. If only one position is the concern, the corresponding standalone kit is the more focused choice. If both positions need to be locked or if the goal is a complete rear eccentric elimination in one step, the EL G29 combined kit covers both.
What hardware is included in the SPL EL G29 kit? The kit includes CNC-machined 6061-T6 aluminum lockout plates, zinc-plated grade 10.9 bolts, lock nuts, and washers for both the rear toe arm and rear camber arm positions at both rear corners. It is sold as a complete one-car kit. Part number: SPL EL G29.

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 G29 BMW Z4, G2x BMW 3 / 4 Series, G42 BMW 2 Series, and A90 Toyota GR Supra [SPLELTG29]

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SPL Parts Rear Toe Eccentric Lockout Kit for G29 BMW Z4, G2x BMW 3 / 4 Series, G42 BMW 2 Series, and A90 Toyota GR Supra

Features

Specifications

Applications

Notes

Frequently Asked Questions

About SPL Parts

Reviews