RSS #372 XL Tarmac Series 2-Piece Complete Lower Control Arm Kit - Front Axle (Pair of 2). Fits front axle on 987, 997/991 C2, C4, Turbo, 981/982/718 models. Adjustable/Non-Hydraulic Replacement Thrust Arm Bushings.
1mm/2mm/3mm & 7mm shims included. Monoball ends
**Note: 981, 991 Models may require additional front "litronic" or torque vector sensor brackets (part# 387). These are optional, but litronic headlights may not work without.
These XL arms should yield -2.8 to -4 degrees of camber, but will vary by vehicle and model. For less camber, use the standard Lower Control Arms, part# 361.
See Fitment notes in the attached images.
RSS Tarmac Series Motorsport Lower Control Arms are
RSS Tarmac Series Motorsport Lower Control Arms are specifically engineered for use on lowered vehicles that have reduced travel struts/dampers If you need assistance in identifying your suspension type please contact us. For specific fitment information refer to the "Chassis Fitment Guide and Lower Control Arm Fitment Notes" (See Images Below).
The RSS Tarmac Series – Motorsports Control Arms are designed for the Porsche driver who demands the absolute maximum in precision handling, feedback, and control from their chassis. This system has been specially engineered to provide unmatched performance, quality, strength, and serviceability. RSS Tarmac Series Control Arms address the performance-related shortcomings of the OEM rubber mounted suspension components which were designed to reduce road noise and vibration for everyday street use. The use of rubber injected moldings in mounting components such as the control arms, thrust arms, upper links, and toe arms is a compromise in regards to maximum suspension performance. The soft rubber deflects under suspension load which in turn causes unwanted movement (deflection) between the suspension and chassis. Data also shows that temporary changes in spring rates can occur as well. These movements and changes result in unnecessary corrections and inputs from the driver.
FEATURES & BENEFITS
• Replaceable Sub-Assemblies: For the extreme, repetitive track day enthusiast or racer, our high strength
steel alloy spherical bearings (with a friction-reducing, longevity increasing Teflon liner) outer and inner arm sub-assemblies can be replaced
unlike the motorsports arms, in which case a new set of arms will need to be purchased if the
spherical bearings are worn out.
• Adjustable Suspension Geometry: Adjust dynamic camber values and roll center heights with our
unique zinc plated steel bushings.
• Solid Monoball Control Arm Ends: Offers better handling and a more responsive suspension over the
factory one-piece rubber injected control arm by eliminating bushing deflection (also uses the same
high strength steel alloy spherical bearing found in our control arm monoball kit).
• 6061 Aerospace Grade Billet Aluminum Construction: This allows for a more uniform molecular structure
at every point of the arm over the cast components providing a more durable and inherently
stronger part. Manufacturing from billet aluminum rather than casting results in fewer impurities in
• Anodized Aluminum Surfaces and Zinc Plated Steel Parts: Allows for better corrosion resistance
against the elements.
AVAILABLE FOR MOST 996, 986, 981, 982, 987 & 997 MODELS INCLUDING TURBO, GT2, GT2RS, GT3 & GT3RS
RSS TARMAC SERIES Motorsports Suspension Kits have been winning championships and races in various forms of motorsport (Road Racing to Rally) around the world. RSS is the suspension of choice of professional race teams, tuners, track day junkies, and driving enthusiasts around the world.
- 2015 PIRELLI WORLD CHALLENGE TC CHAMPIONS
- 2014 FIA SPANISH RALLY TARMAC CHAMPIONS
- 2013 ROLEX GRAND-AM GX CHAMPIONS
RSS High-Performance Tarmac Series Suspension Components are designed, engineered, and manufactured on location here in the USA.