ERP Pro-Series Lower Control Arm
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ERP Pro-Series Lower Control Arm

Price: $1,800.00
  • Item #: tar-ERP-LCA-F
  • Manufacturer: ERP
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Introducing the latest innovation in competition suspension products for your Porsche 986/997/986/987/981 & 991. Designed and manufactured by the ERP Suspension Engineering, this unique lower control arm design is far superior in reliability, quality, and performance to anything else available on the market today.

These bad boys are more than just a machined replica of the factory arms. The ERP Pro-Series lower control arms are fabricated from aerospace quality 4130 chromoly steel, tig welded together, and then heat treated and finished with protective coating of electro-less nickel. Camber, caster and wheel base can all be adjusted quickly and precisely with a simple turnbuckle link design. No shims to add or remove. In addition, this kit includes precision adjustable diagonal links for fine tuning caster and adjusting wheel base. All pivot points, at the chassis connection consists of oversized precision grade Teflon lined rod ends. The ball joint also consists of oversized precision grade Teflon lined monoball bushings. The diagonal link to the chassis connection point uses the 997 RSR design which allows it to be raised or lowered to reduce squat and dive during acceleration. For safety, the problematic 12mm ball joint design, used on both OEM and aftermarket arms, has been completely redesigned for a full proof, significantly stronger, and more reliable design that you can count on. To top off this no compromise design the center geometry can also be adjusted to correct for lower ride heights. All kits come complete for one axle with all the parts and hardware necessary for a bolt in direct replacement for the OEM arms.

  • No-compromise design
  • Precision camber adjustability
  • Precision caster adjustability
  • Precision wheel base adjustability
  • No shims required
  • Chromoly construction
  • Electroless nickel finish
  • Roll center adjustability
  • Squat and dive reduction
  • Superior quality, performance, and strength.

Install Information for Cup & Pro Series Control Arms Torque the M14 ball joint bolt to 120ft.-lbs. Retorque after the 1st hour of use to insure correct tension, in case of any initial settling or seating of parts. All other hardware is installed and torqued to factory specs. Due to the OEM 12mm ball joint bolt being replaced by a 14mm, it may be necessary to slightly open the hole in the wheel carrier to clear the larger bolt diameter. In some cases, on some wheel uprights the hole will be fine, but others will need to be opened slightly to 14mm. This will in no way weaken or compromise the strength, nor will it prevent going back to an OEM style control arm. Due to the loading on the suspension components, especially in competition, we highly recommend checking the torque on all hardware before every event, as routine maintenance for completion use.

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