How is the SPL RTA F3X different from the factory toe arm on the F2X and F3X?

The factory toe arm uses an eccentric bolt and washer that rotates through a limited arc to provide a small amount of toe adjustment. That range was designed for aligning the car at factory ride height within manufacturer tolerance; not for performance alignments or lowered builds where the required toe target often falls outside what the eccentric can reach. The RTA F3X replaces the arm with one that has a much wider adjustment range, precise locking through SPL's rotating clamp system, and FK spherical bearings that eliminate the rubber deflection the factory bushing introduces under load.

Should I pair these toe arms with the SPL eccentric lockout kit?

For track use, yes. The eccentric lockout kit eliminates the factory eccentric bolt entirely and replaces it with hardware that mechanically prevents rotation under cornering load. Without the lockout, the factory eccentric remains in the subframe and can still slip under high lateral loads even after the toe arm is upgraded. SPL Parts offers the lockout kit separately or as a pre-bundled package with the RTA F3X; the bundle is the complete rear toe solution for track-prepared F2X and F3X builds.

Do these toe arms pair with the SPL RUA F3X rear upper arms?

Yes, and this is the recommended combination. The RTA F3X provides rear toe adjustment; the SPL RUA F3X provides rear camber adjustment. On a lowered F2X or F3X, both toe and camber move outside the factory eccentric ranges simultaneously. Installing both arms gives the alignment technician independent control over both geometry settings, which is the complete rear alignment solution for these platforms.

How long does delivery take for the SPL RTA F3X?

Many SPL Parts are made to order. Allow 3 to 6 weeks for production and delivery. Plan build timelines and track schedules accordingly before placing the order.

Are replacement rod ends available if one wears out?

Yes. SPL Parts offers replacement rod ends for the RTA F3X in both left and right hand thread. Contact SPL Parts directly or use the links provided on the SPL Parts product page to source the correct replacement.

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Description

SPL Parts Titanium Series Adjustable Rear Toe Links for F2X 2 Series and F3X 3 / 4 Series

The SPL F3X rear toe links increase stability and response on the F2X 2 Series and F3X 3 and 4 Series BMW by eliminating bushing deflection and adding an increased range of rear toe adjustment, which lowered cars and performance alignments need. Even small changes to ride height and camber shift rear toe, and the wide adjustment range lets you maximize grip on a track car and extend tire life on a street car. The factory rear toe arms use an eccentric bolt and washer that lack the precision and range these links offer, while black-anodized gun-drilled 2024 aluminum main links and a 360-degree Rotating Clamp design make adjustment quick and repeatable.

Features

SPL F3X rear toe links with an increased range of rear toe adjustment for lowered cars and performance alignments
Eliminates the factory eccentric-bolt adjustment for a precise, repeatable threaded system
Black-anodized gun-drilled 2024 aluminum main links to reduce unsprung weight
360-degree Rotating Clamp design tightened with blue-anodized titanium socket-head cap screws for quick, easy-access adjustment
3-piece Teflon-lined FK heim joints made in Connecticut for quiet, low-friction, deflection-free articulation
Fits both rear-wheel-drive and xDrive F2X and F3X models

Applications

BMW 2 Series: F22 / F23 | 2014-2021
BMW 3 Series: F30 / F31 / F34 | 2012-2019
BMW 4 Series: F32 / F33 / F36 | 2014-2020

Notes

SPL components are made to order in the USA; build time is confirmed at the time of order
Spherical rod ends transmit more noise and vibration than the OEM rubber, which is normal for a performance toe link on a street-driven car

Frequently Asked Questions

What vehicles do the SPL F3X rear toe links fit? The SPL F3X rear toe links (RTA F3X) fit the F22 and F23 2 Series (2014-2021), F30, F31, and F34 3 Series (2012-2019), and F32, F33, and F36 4 Series (2014-2020), in both rear-wheel-drive and xDrive. Confirm your chassis before ordering these SPL F3X rear toe links.
Why upgrade the rear toe arms? The factory rear toe arms use an eccentric bolt and washer that lack precision and range. The SPL F3X rear toe links add a wide range of adjustment for lowered cars and performance alignments, and their Teflon-lined FK rod ends eliminate the bushing deflection that shifts rear toe under load, improving stability and response.
How are they adjusted? The SPL F3X rear toe links use a precise threaded system with SPL’s 360-degree Rotating Clamp design, so rear toe is set and locked quickly without fighting jam nuts. Gun-drilled 2024 aluminum links keep the arms light while holding strength.
What is the difference between these and the eccentric lockout version? These SPL F3X rear toe links are the standard adjustable toe arms. SPL also offers a version bundled with an eccentric lockout kit that eliminates the slip-prone stock eccentric bolts for zero-slip alignment retention. Choose the lockout version if you want to lock out the factory eccentrics as well.
How are they sold? The SPL F3X rear toe links are sold as a pair, which covers both sides of the rear axle on one car. You do not need to order two kits for one vehicle.
Will these add noise? Some. The 3-piece FK rod ends transmit more feedback than the stock rubber bushings, though the Teflon liner keeps operation quiet and smooth. A slight increase in noise and vibration is normal for a performance toe link on a street-driven car.

About SPL Parts

SPL Parts designs and manufactures performance suspension components built around the principles of strength, light weight, low friction, and precision. From full racing to high-performance street applications, SPL suspension products provide the adjustability and added performance that custom alignment work demands. High-quality construction and innovative design are why SPL components are chosen by top race teams as well as by drivers who want serious alignment capability on their high-performance street cars. Bulletproof Automotive carries the SPL Parts catalog for street, track, and competition builds.

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 Titanium Series Adjustable Rear Toe Links for F2X BMW 2 Series and F3X 3 / 4 Series [SPL RTA F3X]

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SPL Parts Titanium Series Adjustable Rear Toe Links for F2X 2 Series and F3X 3 / 4 Series

Features

Applications

Notes

Frequently Asked Questions

About SPL Parts

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