What is the difference between the SPL FLCAK 996 kit and buying the LCA 996 V2 and TR 996 separately?

The FLCAK 996 is the bundled version that includes both the SPL LCA 996 V2 lower control arm and the SPL TR 996 tension/trailing arm together. Buying the bundle is more efficient and typically more cost-effective than purchasing them separately; both arms share the same installation session, the same alignment appointment, and are designed to work together for the full five-adjustment geometry capability.

Why do both the lower control arm and the caster arm need to be replaced together for a complete front geometry upgrade?

The lower control arm governs camber, track width, and roll center; the caster arm governs caster and anti-dive. Each is an independent front geometry adjustment that the other cannot provide. The factory rubber bushings in both arms deflect under load; replacing only one while leaving the other in rubber leaves a deflection point that partially offsets the geometry precision gains from the upgraded arm. SPL pairs the two arms in the FLCAK kit because the combination is where the full benefit of front geometry control is realized.

Can this kit be used on the rear of the 996 and 997?

Yes. The SPL FLCAK 996 can be installed at the front or rear of the 996 and 997; two kits are required for a full front and rear conversion on those platforms. On the 986, 987 Boxster, and 987 Cayman, this kit fits the front only. When installed at the rear of the 996 or 997, the anti-dive function of the caster arm becomes anti-squat adjustment instead.

What is the NVH tradeoff on a street-driven 996 or 986 Boxster?

SPL characterizes the NVH as present and tolerable for most drivers; comparable to an OEM GT3. Both the lower control arm and the caster arm replace rubber bushings with spherical bearings, which transmits more road noise and felt energy from rough surfaces. On smooth roads, ride quality improves because the shock absorber can work without bushing bind. Compliant tires, tire pressure adjustments, and quality shock absorbers reduce the felt energy for daily-driven builds.

Are replacement rod ends available for the FLCAK 996 kit?

Yes. SPL Parts offers replacement rod ends for both the LCA 996 V2 and the TR 996 components in the FLCAK kit. Contact SPL Parts directly or contact Bulletproof Automotive for the correct replacement.

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Description

SPL Parts Front Lower Control Arm Kit for 99x / 98x Porsche 911 / Boxster / Cayman

The factory front suspension on the Porsche 996, 997, 986, and 987 uses rubber bushings in the lower control arm and the tension / trailing (caster) arm. Both arms deflect under load. The result is the full range of geometry problems that rubber compliance introduces at the front of a Porsche; camber loss under cornering, bumpsteer from the lower arm moving under load, vague steering feedback as the front end flexes rather than transmitting what the tires are doing, and caster variation between sessions on a track car. The SPL FLCAK 996 addresses all of that in one kit. The SPL FLCAK 996 includes two arms: the SPL LCA 996 V2 lower control arm and the SPL TR 996 tension/trailing arm. Together they provide five independent front geometry adjustments from two bolt-in components.

Features

Complete one-axle kit — adjustable lower control arms + caster/trailing arms paired
Tunes track width, camber, caster, roll center, and anti-dive geometry as a system
PTFE-lined F1-fit FK USA spherical bearings — eliminate OEM bushing deflection and bind
Gun-drilled 2024-T351 aluminum bodies — high strength, reduced unsprung weight
360° rotating clamp design — tool-friendly alignment without re-indexing bearings
Made in the USA

Specifications

Five front geometry adjustments in two arms: camber, caster, track width, roll center, and anti-dive
PTFE-lined, F1-spec, self-cleaning FK spherical bearings manufactured in the USA; eliminates OEM rubber bushing deflection and bind at both arm positions
4.63lbs (2.10 kg) per side; 6061-T6 billet aluminum arms, clamps, and clevis; gun-drilled trailing link
4140 Chromoly Double Adjuster, electroless nickel-plated; 360-degree rotating clamp locks without jam nuts
304 stainless steel adjustment spacers; 4340 Chromoly heat-treated ball joint studs
Class 10.9 metric hardware; SAE Grade 8 imperial hardware; Ti-6Al-4V titanium socket head allen screws anodized blue
Fits front and rear of 996 and 997 (two kits per vehicle for full coverage); front only on 986, 987 Boxster, and 987 Cayman
Featured on Eric Sutton’s Solo National Champion 996 Turbo

Applications

Porsche 911 Carrera: 996, 997 | 1999-2012
Porsche 911 Carrera S: 997 | 2005-2012
Porsche 911 Carrera 4: 996, 997 | 1999-2012
Porsche 911 Carrera 4S: 996, 997 | 2002-2012
Porsche 911 Turbo: 996, 997 | 2001-2012
Porsche 911 Turbo S: 997 | 2010-2012
Porsche 911 GT3: 996, 997 | 1999-2012
Porsche 911 GT3 RS: 996, 997 | 2004-2012
Porsche 911 GT2: 996, 997 | 2002-2012
Porsche 911 GT2 RS: 997 | 2010-2012
Porsche Boxster: 986, 987 | 1997-2012
Porsche Boxster S: 986, 987 | 1997-2012
Porsche Cayman: 987 | 2005-2012
Porsche Cayman S: 987 | 2005-2012

Notes

Installation Instructions
SPL components are made-to-order in the USA; build time will be confirmed at the time of order.
Replacement rod ends available from SPL Parts, please contact us
Some applications have different compatibility, please contact us prior to purchase to confirm your fitment

Frequently Asked Questions

What is the difference between the SPL FLCAK 996 kit and buying the LCA 996 V2 and TR 996 separately? The FLCAK 996 is the bundled version that includes both the SPL LCA 996 V2 lower control arm and the SPL TR 996 tension/trailing arm together. Buying the bundle is more efficient and typically more cost-effective than purchasing them separately; both arms share the same installation session, the same alignment appointment, and are designed to work together for the full five-adjustment geometry capability. Purchasing them separately remains an option for builds that only need one of the two arms initially.
Why do both the lower control arm and the caster arm need to be replaced together for a complete front geometry upgrade? The lower control arm governs camber, track width, and roll center; the caster arm governs caster and anti-dive. Each is an independent front geometry adjustment that the other cannot provide. The factory rubber bushings in both arms deflect under load; replacing only one while leaving the other in rubber leaves a deflection point that partially offsets the geometry precision gains from the upgraded arm. SPL pairs the two arms in the FLCAK kit because the combination is where the full benefit of front geometry control is realized.
Can this kit be used on the rear of the 996 and 997? Yes. The SPL FLCAK 996 can be installed at the front or rear of the 996 and 997; two kits are required for a full front and rear conversion on those platforms. On the 986, 987 Boxster, and 987 Cayman, this kit fits the front only. When installed at the rear of the 996 or 997, the anti-dive function of the caster arm becomes anti-squat adjustment instead.
What is the NVH tradeoff on a street-driven 996 or 986 Boxster? SPL characterizes the NVH as present and tolerable for most drivers; comparable to an OEM GT3. Both the lower control arm and the caster arm replace rubber bushings with spherical bearings, which transmits more road noise and felt energy from rough surfaces. On smooth roads, ride quality improves because the shock absorber can work without bushing bind. Compliant tires, tire pressure adjustments, and quality shock absorbers reduce the felt energy for daily-driven builds.
Are replacement rod ends available for the FLCAK 996 kit? Yes. SPL Parts offers replacement rod ends for both the LCA 996 V2 and the TR 996 components in the FLCAK kit. Contact SPL Parts directly or contact Bulletproof Automotive 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 Front Lower Control Arm Kit for 99x / 98x Porsche 911 / Boxster / Cayman [SPLLCAK996]

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SPL Parts Front Lower Control Arm Kit for 99x / 98x Porsche 911 / Boxster / Cayman

Features

Specifications

Applications

Notes

Frequently Asked Questions

About SPL Parts

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