{"product_id":"spl-control-arms-for-porsche-boxster-2005-2026-rear-lower-spl-rlca-987-v2","title":"SPL Control Arms Kit for Porsche Boxster \u0026 Cayman 987 (05-12) 981 (12-16) 718 \/ 982 (17-26) Adjustable Rear Lower SPL RLCA 987 V2","description":"\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eFitment Information\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePorsche Boxster, Boxster S, Boxster Spyder, Boxster Spyder RS 987 (2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012)\u003c\/li\u003e\n\u003cli\u003ePorsche Boxster, Boxster S 981 (2012, 2013, 2014, 2015, 2016)\u003c\/li\u003e\n\u003cli\u003ePorsche Boxster, Boxster T, Boxster S, Boxster GTS 718 \/ 982 (2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePorsche Cayman, Cayman S, Cayman R\u003c\/span\u003e 987 (2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePorsche Cayman, Cayman S\u003c\/span\u003e 981 (2012, 2013, 2014, 2015, 2016)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePorsche Cayman, Cayman T, Cayman S, Cayman GTS\u003c\/span\u003e 718 \/ 982 (2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026)\n\u003cul\u003e\n\u003cli\u003eDoes NOT fit \u003cspan\u003eCayman GT4s 981 \/ 982\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWe limit the above applications to known fitments from testing and research. If you're unsure if this is the proper part for your application, send us an email.\u003c\/li\u003e\n\u003cli\u003eOccasionally, parts will fit other vehicles not listed above. If you believe, or know, this part will fit your vehicle, send us an email and we'll work with you to confirm proper fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003eSpecs \u0026amp; Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable Rear Camber and Roll Center\u003c\/li\u003e\n\u003cli\u003eLightweight: 2.85 lbs (1.29 kg) per Side\u003c\/li\u003e\n\u003cli\u003eImproved Rear Grip and Tire Wear on Track\u003c\/li\u003e\n\u003cli\u003ePrecise Rotation and Steering Feel from Eliminating Bushing Deflection\u003c\/li\u003e\n\u003cli\u003eGreater Adaptability for Wheel\/Tire Clearance\u003c\/li\u003e\n\u003cli\u003e6061-T6 Billet Aluminum Arms and Clevis (Anodized Black)\u003c\/li\u003e\n\u003cli\u003e6061-T6 Aluminum Spacers and 360° Clamps\u003c\/li\u003e\n\u003cli\u003e4140 Chromoly Steel Double Adjuster (Electroless Nickel Plated)\u003c\/li\u003e\n\u003cli\u003e4340 Chromoly Steel Studs (Heat-treated)\u003c\/li\u003e\n\u003cli\u003eClass 10.9 Metric Hardware \/ SAE Grade 8 Imperial Hardware\u003c\/li\u003e\n\u003cli\u003eTi-6Al-4V Titanium 1\/4\"-20 Socket Head Allen Screws (Anodized Blue)\u003c\/li\u003e\n\u003cli\u003eSold as a pair. One pair per vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eMade in USA\u003c\/span\u003e\n\u003cdiv class=\"productView\"\u003e\n\u003carticle class=\"productView-description\" itemprop=\"description\"\u003e\n\u003cdiv class=\"tabContainer\"\u003e\n\u003cdiv class=\"custom-row\"\u003e\n\u003cdiv class=\"column large-12\"\u003e\n\u003carticle class=\"tab-inner productView-description1 ProductInfoTab r-tabs\" itemprop=\"description\"\u003e\n\u003cdiv class=\"tab-content r-tabs-panel r-tabs-state-active\" id=\"tab-description\"\u003e\n\u003cdiv class=\"prod-desc\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff0000;\"\u003eProduct Description\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv id=\"intro-desc\"\u003e\n\u003cdiv id=\"intro-desc\"\u003e\n\u003cdiv id=\"intro-desc\"\u003e\n\u003cp\u003eThe SPL Rear Lower Control Armw (RLCA) significantly improves rear mechanical grip, provides greater stability under hard braking and acceleration, and precise feedback on what the rear is doing on turn-in and on limit. The use of PTFE-lined, F1-fit FK USA spherical bushings eliminates OEM rubber bushing deflection and bind, allowing the suspension to freely articulate without undampened rubber spring forces, while also preventing camber loss, bumpsteer, and vague feedback that occur due to bushing deflection.\u003cbr\u003e\u003cbr\u003eThe kit enables adjustable track width, camber, and rear roll center for a deeper customization of the rear suspension geometry to better suit your driving preferences and adapt to changes in tracks, aero loading, tires, and more.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"technical-benefits\" class=\"technical-benefits-list\"\u003e\n\u003cp\u003e\u003cstrong\u003eCamber Adjustment\u003cbr\u003e\u003c\/strong\u003eIncrease Camber for More Peak Lateral Grip\u003c\/p\u003e\n\u003cp\u003eOne of the biggest improvements to rear cornering grip you can make is adding more negative camber. This also will significantly improve track event tire life by reducing heavy wear on the outer portion of the tread that occurs when there's insufficient camber angle relative to body roll.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRear Roll Center Adjustment\u003cbr\u003e\u003c\/strong\u003eReduce Body Roll with Geometry not Spring Rate\u003c\/p\u003e\n\u003cp\u003eRoll center is the imaginary point that the chassis rolls about during cornering. The distance between the roll center and the center of gravity (front-view, vertical) is essentially the amount of leverage the chassis has to produce roll.\u003cbr\u003e\u003cbr\u003eWhen you lower your Porsche the roll center drops further than the center of gravity, resulting in a larger roll moment (force). Using the roll center correction spacers to correct the angle of the rear lower control arm brings the roll center back up, resulting in less body roll at the same spring rate and less tendency to oversteer with fast transitions.\u003cbr\u003e\u003cbr\u003eWith the front and rear SPL kits, you can adjust the pitch of the roll axis which can have a significant effect on the car's handling behavior with respect to over and understeer, especially through esses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNoise, Vibration, and Harshness (NVH)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear lower control arms are an important part of mitigating NVH. By eliminating all bushing deflection the rear suspension will transmit more road noise, felt energy from bumps, and can increase tramlining in some cases. However, the reduction of bushing bind and reduced friction will improve ride quality over smoother roads and allow the shock to work more effectively over moderate bumps.\u003cbr\u003e\u003cbr\u003eTire choice, tire pressure, spring rates, and shock quality will have significant influence on ride quality as well. For daily driving, felt energy and noise can be reduced moderately by running a more compliant tire, either through reduced pressure (suitable for the load and tire) and\/or taller or softer sidewalls, as well as optimized compression dampening on a quality shock.\u003cbr\u003e\u003cbr\u003eMost drivers will find the NVH to be present and tolerable, similar to an OEM GT3 or GT4.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReplaces OEM Part Number(s)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"cover-text\"\u003eThis is a list of known OEM part numbers. OEMs constantly make changes to part numbers due to part updates, suppliers, etc so this may not be a complete list.\u003c\/p\u003e\n\u003cp\u003e997 331 053 01\u003cbr\u003e997 331 053 02\u003cbr\u003e997 331 053 03\u003cbr\u003e981 331 053 02\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SPL Parts","offers":[{"title":"Default Title","offer_id":42961261428816,"sku":"SPPSPL RLCA 987 V2","price":1169.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0058\/0252\/4785\/files\/SPL-RCLA-987-L2-1-Rear-Lower-Control-Arms-HiRes__24368.1770919819.webp?v=1790094943","url":"https:\/\/shop.redline360.com\/products\/spl-control-arms-for-porsche-boxster-2005-2026-rear-lower-spl-rlca-987-v2","provider":"Redline360","version":"1.0","type":"link"}