How much alignment range do these provide?

Significantly more than the OEM eccentric range — typically suitable for street, track, and time-attack setups.

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.

Do I need an alignment after install?

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

Are these compatible with stock dampers and springs?

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

What is the lead time?

E-Motion suspension is made-to-order in California. Build time is confirmed at the time of order.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

E-Motion Front Inner Control Arms for 991 Porsche 911 GT3 / GT2 RS / GT3 RS and 981 / 982 Porsche Cayman GT4 / Spyder

Front Inner Control Arms for 991 Porsche 911 GT3 / GT2 RS / GT3 RS and 981 / 982 Porsche Cayman GT4 / Spyder replaces the OEM rubber-bushed suspension arms on the 991 Porsche 911 (GT3 / GT2 RS / GT3 RS) and 981 / 982 Porsche Cayman GT4 with E-Motion’s adjustable, spherical-bearing arms. The PTFE-lined FK USA spherical bearings eliminate OEM bushing deflection and bind, sharpening chassis feedback under braking and corner load while providing the alignment range needed to dial in track-spec geometry. CNC-machined billet aluminum bodies keep unsprung weight low and the housings rigid under sustained track use. Sold as a pair per chassis variant.

Features

PTFE-lined F1-fit FK USA spherical bearings — eliminate OEM bushing deflection
Adjustable for camber, caster, or track width (per part)
CNC-machined billet aluminum body — high strength, low unsprung weight
Precise repeat alignment after the customer dials in their setup
Direct fit to OEM mounting locations
Made in the USA

Specifications

Body Material: CNC-machined billet aluminum
Bushings: PTFE-lined F1-fit FK USA spherical bearings
Adjustment: Camber, caster, or track width (per part)
Sold As: Pair (one car)
Origin: Made in the USA

Applications

Porsche 911 GT2 RS (991.2): 2018–2019
Porsche 911 GT3 (991.1, 991.2): 2014–2019
Porsche 911 GT3 RS (991.1, 991.2): 2016–2019
Porsche Boxster Spyder (982): 2020–present
Porsche Cayman GT4 (981, 982): 2015–present

Notes

Sold as a pair per chassis variant.

Pairs with: Front Outer Control Arms for 997 / 991 / 992 Porsche 911 and 981 / 982 Porsche Boxster / Cayman · Adjustable Front Tension Arms for 996 / 997 / 991 Porsche 911 and 981 Porsche Boxster / Cayman · Roll Bar Mounts for Carbon Fiber Roll Bar — 992.1 Porsche 911 GT3 RS.

E-Motion Engineering builds these components to order in Costa Mesa, California; build time will be confirmed at the time of order.

Frequently Asked Questions

How much alignment range do these provide? Significantly more than the OEM eccentric range — typically suitable for street, track, and time-attack setups.
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.
Do I need an alignment after install? Yes — set camber, caster, and toe on the rack after install, and a corner balance is recommended for the full benefit.
Are these compatible with stock dampers and springs? Yes. The arms are fully compatible with both the OEM suspension and any aftermarket coilover / damper system.
What is the lead time? E-Motion suspension is made-to-order in California. Build time is confirmed at the time of order.

About E-Motion Engineering

E-Motion Engineering designs and manufactures bespoke Porsche performance components from their facility in Costa Mesa, California. Their catalog spans suspension geometry components for the 911, Boxster, Cayman, and Macan, off-road armor and bumpers for the Cayenne, and chassis reinforcement and safety components for the GT3 / GT3 RS / GT2 RS platforms. Every E-Motion part is engineered, machined, welded, or anodized in-house — Bulletproof Automotive carries the full E-Motion catalog and works directly with the E-Motion 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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E-Motion Front Inner Control Arms for 991 Porsche 911 GT3 / GT2 RS / GT3 RS and 981 / 982 Porsche Cayman GT4 / Spyder

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E-Motion Front Inner Control Arms for 991 Porsche 911 GT3 / GT2 RS / GT3 RS and 981 / 982 Porsche Cayman GT4 / Spyder

Features

Specifications

Applications

Notes

Frequently Asked Questions

About E-Motion Engineering

Reviews