What is bumpsteer and why does it matter?

Bumpsteer is unwanted toe change as the suspension moves through travel. On lowered Porsches the front geometry creates aggressive bumpsteer that hurts straight-line stability and corner-entry confidence. These TREs let you correct it.

Will these stop my inner tie rods from breaking on track?

They eliminate the binding condition at full droop that causes inner tie rod failure on lowered cars driven hard. Combined with proper alignment, they significantly extend inner tie rod life.

Do I need to keep my OEM outer tie rod ends?

No. These replace the OEM outer tie rod ends entirely.

How do I dial in the bumpsteer setting?

Bumpsteer is set on the alignment rack with bumpsteer gauges. Your alignment shop should be familiar with the procedure; SPL supplies multiple spacer thicknesses to step through pivot heights.

Are these louder than OEM?

Slightly. Spherical bearings transmit more road feedback. Most drivers find the trade for accuracy and longevity worthwhile.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

SPL Parts Adjustable Bumpsteer Tie Rod Ends for 996 / 997 / 991 Porsche 911 and 986 / 987 / 981 / 982 / 718 Porsche Boxster / Cayman

SPL Bumpsteer-Adjustable Tie Rod Ends relocate the front tie rod end pivot to correct bumpsteer caused by lowering, modified caster, or aftermarket lower arm geometry. On significantly lowered cars they also stop the inner tie rod from binding at full droop, which is what bends or breaks inner rods on track-driven 911s and Caymans. Stainless steel bumpsteer spacers in multiple thicknesses let you dial the pivot height precisely. Sold as a pair.

Features

Bumpsteer correction for lowered or geometry-modified front suspension
Prevents inner tie rod bind / damage at full droop on aggressively lowered cars
Lightweight gun-drilled 2024-T351 aluminum body — reduces unsprung weight
Heat-treated electroless nickel-plated 4340 chromoly shank
Low-friction 3-piece Teflon-lined FK heim joints
Multiple stainless steel bumpsteer spacers for precise pivot adjustment
Made in the USA

Specifications

Body Material: Gun-drilled 2024-T351 aluminum
Shank: Heat-treated 4340 chromoly with electroless nickel plating
Heim Joint: PTFE-lined FK 3-piece rod end
Spacers: Multiple stainless steel thicknesses for pivot tuning
Origin: Made in the USA

Applications

Porsche 911 (991): 2012–present
Porsche 911 (996): 1999–2005
Porsche 911 (997): 2005–2012
Porsche Boxster (981): 2012–2016
Porsche Boxster (982/718): 2017–present
Porsche Boxster (986): 1997–2004
Porsche Boxster (987): 2005–2012
Porsche Cayman (981): 2012–2016
Porsche Cayman (982/718): 2017–present
Porsche Cayman (987): 2005–2012

Notes

Sold as a pair.

Pairs with: Adjustable Front Sway Bar Endlinks for Porsche 911 (996 and 997), Boxster (986 and 987), and Cayman (987) · Adjustable Front Sway Bar Endlinks for Porsche 911 (991), Boxster (981 and 982/718), and Cayman (981 and 982/718).

SPL components are made-to-order in the USA; build time will be confirmed at the time of order.

Frequently Asked Questions

What is bumpsteer and why does it matter? Bumpsteer is unwanted toe change as the suspension moves through travel. On lowered Porsches the front geometry creates aggressive bumpsteer that hurts straight-line stability and corner-entry confidence. These TREs let you correct it.
Will these stop my inner tie rods from breaking on track? They eliminate the binding condition at full droop that causes inner tie rod failure on lowered cars driven hard. Combined with proper alignment, they significantly extend inner tie rod life.
Do I need to keep my OEM outer tie rod ends? No. These replace the OEM outer tie rod ends entirely.
How do I dial in the bumpsteer setting? Bumpsteer is set on the alignment rack with bumpsteer gauges. Your alignment shop should be familiar with the procedure; SPL supplies multiple spacer thicknesses to step through pivot heights.
Are these louder than OEM? Slightly. Spherical bearings transmit more road feedback. Most drivers find the trade for accuracy and longevity worthwhile.

About SPL Parts

SPL Parts designs and manufactures top-shelf adjustable suspension components for street and track cars, with a strong focus on Porsche, Nissan, Subaru, BMW, and Toyota platforms. Every SPL arm, link, and bushing is engineered, machined, and assembled in the USA using PTFE-lined FK USA spherical bearings, gun-drilled aerospace aluminum, and class-leading hardware. Bulletproof Automotive carries the full SPL catalog and works directly with the SPL team to support every order.

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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