How much negative camber can I run?

Significantly more than the OEM eccentric range — typically suitable for street, track, and time-attack setups. Specific maximum depends on ride height and other geometry choices.

Will my ride quality suffer?

Spherical bearings transmit more road feedback than OEM rubber, particularly over sharp impacts. Smooth-road compliance often improves because bushing bind is eliminated. Most drivers find the result similar to a stock GT3.

Do I need an alignment after install?

Yes — set camber and toe on a rack after install, and a corner balance is recommended for the full benefit.

Are these compatible with stock dampers and aftermarket coilovers?

Yes. The arms are fully compatible with both the OEM suspension and any aftermarket coilover / damper system.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

SPL Parts Adjustable Front Lower Control Arms for 991 Porsche 911, 981 / 982 Porsche Boxster, and 981 / 982 Porsche Cayman

SPL Adjustable Front Lower Control Arms for the 991 Porsche 911 and 981 / 982 Porsche Boxster / Cayman replace the OEM rubber-bushed front lower arms with PTFE-lined, F1-fit FK USA spherical bearings to eliminate deflection and bind. The result is a wide negative camber range, adjustable track width, sharper steering feel under braking, and significantly improved peak lateral grip on the limit. Black anodized, gun-drilled 2024-T351 aluminum bodies with SPL’s 360° rotating clamp design make alignment changes fast and repeatable. Sold as a pair (one car).

Features

PTFE-lined F1-fit FK USA spherical bearings — eliminate OEM bushing deflection and bind
Adjustable track width and camber for chassis-specific tuning
Wide negative camber range to add peak lateral grip and protect outer tire wear
Gun-drilled 2024-T351 aluminum bodies — high strength, reduced unsprung weight
360° rotating clamp design for fast alignment changes without re-indexing
Made in the USA

Specifications

Body Material: 2024-T351 aluminum (gun-drilled, black anodized)
Bushings: PTFE-lined F1-fit FK USA spherical bearings
Adjustment: Track width and camber
Sold As: Pair (one car)
Origin: Made in the USA

Applications

Porsche 718 Boxster (982): 2017–present
Porsche 718 Cayman (982): 2017–present
Porsche 911 (991): 2012–2019 (Carrera, Turbo)
Porsche Boxster (981): 2012–2016
Porsche Cayman (981): 2014–2016

Notes

Sold as a pair (one car).

Pairs with: Front Lower Control Arm Kit for 991 Porsche 911, 981 / 982 Porsche Boxster, and 981 / 982 Porsche Cayman · Adjustable Front Caster Arms with Anti-Dive Geometry for 991 Porsche 911, 981 / 982 / 718 Porsche Boxster / Cayman · Adjustable Front Sway Bar Endlinks for 991 Porsche 911 and 981 / 982 / 718 Porsche Boxster / Cayman.

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

Frequently Asked Questions

How much negative camber can I run? Significantly more than the OEM eccentric range — typically suitable for street, track, and time-attack setups. Specific maximum depends on ride height and other geometry choices.
Will my ride quality suffer? Spherical bearings transmit more road feedback than OEM rubber, particularly over sharp impacts. Smooth-road compliance often improves because bushing bind is eliminated. Most drivers find the result similar to a stock GT3.
Do I need an alignment after install? Yes — set camber and toe on a rack after install, and a corner balance is recommended for the full benefit.
Are these compatible with stock dampers and aftermarket coilovers? Yes. The arms are fully compatible with both the OEM suspension and any aftermarket coilover / damper system.
What is the lead time? SPL components are made-to-order in the USA. Build time will be confirmed at the time of order.

About SPL Parts

SPL Parts designs and manufactures top-shelf adjustable suspension components for street and track cars, with a strong focus on Porsche, BMW, Nissan, Subaru, 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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