What is the difference between the SPL RTAEL E9M and the SPL RTA E9M?

The RTA E9M is the standalone toe arm pair without lockout hardware. The RTAEL E9M is the bundled kit that includes both the toe arms and the eccentric lockout hardware in a single purchase; specifically the 6061-T6 aluminum lockout washers and Grade 10.9 hex cap bolts with lock nuts. The bundle also includes a combined installation instruction set that covers both the toe arm and eccentric lockout installation together. For any build intended for track use, the RTAEL E9M is the complete solution; the lockout hardware eliminates the eccentric slip that the toe arm alone does not address.

What does the eccentric lockout actually prevent?

The factory eccentric bolt at the rear toe arm connection holds its position through friction and torque once tightened to spec. Under sustained high cornering loads, that friction can be overcome and the bolt rotates slightly, shifting toe mid-session. The 6061-T6 aluminum lockout washers and Grade 10.9 lock nut hardware mechanically prevent that rotation; the eccentric cannot turn under any load condition, and the toe position set at the alignment rack is physically maintained through the entire session.

Does the RTAEL E9M fit non-M E9X and E8X models?

No. This is the M Version kit, engineered for the E8X 1M and E9X M3 rear subframe geometry. A separate non-M bundle (SPL RTAEL E9X) exists for the non-M 128i, 135i, 328i, 335i, and 335d. The M and non-M rear subframe configurations use different arm mounting geometry and the two kits are not interchangeable. Confirm your specific variant before ordering.

Is it worth buying the bundle versus purchasing the toe arms and lockout separately?

The RTAEL E9M bundle includes both components in a single purchase alongside a combined installation instruction PDF that covers the toe arms and eccentric lockout installed together. For any build that is going to track, it is the recommended path; there is no benefit to installing the toe arm without the lockout on a track car, since the eccentric can still slip under high lateral loads regardless. The bundle ensures both elements are addressed simultaneously.

Are replacement rod ends available for the RTAEL E9M?

Yes. SPL Parts offers replacement rod ends for the RTAEL E9M toe arms in both left and right hand thread. Use the links on the SPL Parts product page or contact SPL Parts directly for the correct replacement.

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Description

SPL Parts Adjustable Bumpsteer Rear Toe Links with Eccentric Lockouts for E8x / E9x BMW 1M / M3

The SPL Parts RTAEL E9M solves both problems in a single purchase. It combines the SPL RTA E9M rear toe arms; gun-drilled 2024 aluminum links, FK spherical rod ends, 360-degree rotating clamp; with the SPL eccentric lockout kit: 6061-T6 aluminum eccentric lockout washers and Grade 10.9 hex cap bolts with lock nuts. The adjustable arm sets toe to the exact target, and the lockout hardware mechanically prevents the eccentric from rotating under any cornering load after the setting is made. The toe position becomes physically fixed rather than friction-dependent, which means the alignment set at the rack stays on the car through every session until it’s deliberately changed. The FK rod ends manufactured in Connecticut use self-lubricating, self-cleaning Teflon liners chemically bonded to the inner race; articulating freely without deflecting, operating from -65°F to 325°F without maintenance, and eliminating the dynamic toe change that rubber bushing deflection introduces under load. The 360-degree rotating clamp locks the toe setting with a single 3/16-inch allen key; no jam nuts, one step, trackside-adjustable. This is the M Version; engineered for the M chassis rear subframe geometry of the E8X 1M and E9X M3; not interchangeable with the non-M RTAEL E9X.

Features

Complete rear toe solution in one purchase; adjustable toe arm plus mechanical eccentric lockout hardware
Gun-drilled 2024 aluminum main links; black anodized for corrosion resistance; gun-drilling reduces unsprung weight
SPL exclusive 360-degree rotating clamp with 6061-T6 aluminum clamp body and blue anodized titanium socket head cap screws; locks toe setting precisely without jam nuts
FK spherical rod ends manufactured in Connecticut; self-lubricating, self-cleaning Teflon liner chemically bonded to inner race; zero bushing deflection under load
Teflon liner operating temperature range: -65°F to 325°F; reliable for sustained street and track use without maintenance
6061-T6 aluminum eccentric lockout washers; mechanically prevent eccentric rotation under high cornering loads
Grade 10.9 hex cap bolts with lock nuts; significantly stronger than factory hardware; cannot loosen under load

Specifications

Body Material: 2024-T351 aluminum (gun-drilled, black anodized)
Heim Joints: PTFE-lined FK USA spherical bearings
Toe Adjustment: Wide range, past OEM eccentric limits
Bumpsteer Adjustment: Yes — fine spacers included
Origin: Made in the USA

Applications

BMW 1M: E82 | 2011-2012
BMW M3: E90, E92, E93 | 2007-2013

Notes

Installation Instructions
Includes the RTA toe links plus eccentric lockout plates — no separate ELT needed.
Replacement rod ends available from SPL Parts please contact us
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 RTAEL E9M and the SPL RTA E9M? The RTA E9M is the standalone toe arm pair without lockout hardware. The RTAEL E9M is the bundled kit that includes both the toe arms and the eccentric lockout hardware in a single purchase; specifically the 6061-T6 aluminum lockout washers and Grade 10.9 hex cap bolts with lock nuts. The bundle also includes a combined installation instruction set that covers both the toe arm and eccentric lockout installation together. For any build intended for track use, the RTAEL E9M is the complete solution; the lockout hardware eliminates the eccentric slip that the toe arm alone does not address.
What does the eccentric lockout actually prevent? The factory eccentric bolt at the rear toe arm connection holds its position through friction and torque once tightened to spec. Under sustained high cornering loads, that friction can be overcome and the bolt rotates slightly, shifting toe mid-session. The 6061-T6 aluminum lockout washers and Grade 10.9 lock nut hardware mechanically prevent that rotation; the eccentric cannot turn under any load condition, and the toe position set at the alignment rack is physically maintained through the entire session.
Does the RTAEL E9M fit non-M E9x and E8x models? No. This is the M Version kit, engineered for the E8X 1M and E9X M3 rear subframe geometry. A separate non-M bundle (SPL RTAEL E9X) exists for the non-M 128i, 135i, 328i, 335i, and 335d. The M and non-M rear subframe configurations use different arm mounting geometry and the two kits are not interchangeable. Confirm your specific variant before ordering.
Is it worth buying the bundle versus purchasing the toe arms and lockout separately? The RTAEL E9M bundle includes both components in a single purchase alongside a combined installation instruction PDF that covers the toe arms and eccentric lockout installed together. For any build that is going to track, it is the recommended path; there is no benefit to installing the toe arm without the lockout on a track car, since the eccentric can still slip under high lateral loads regardless. The bundle ensures both elements are addressed simultaneously.
Are replacement rod ends available for the RTAEL E9M? Yes. SPL Parts offers replacement rod ends for the RTAEL E9M toe arms in both left and right hand thread. Use the links on the SPL Parts product page or contact SPL Parts directly for the correct replacement.

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 Adjustable Bumpsteer Rear Toe Links with Eccentric Lockouts for E8x / E9x BMW 1M / M3 [SPLRTAELE9M]

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SPL Parts Adjustable Bumpsteer Rear Toe Links with Eccentric Lockouts for E8x / E9x BMW 1M / M3

Features

Specifications

Applications

Notes

Frequently Asked Questions

About SPL Parts

Reviews