SPL Parts Rear Lower Camber Arms
2013–2020 Subaru BRZ, 2017–2020 Toyota 86, 2022+ Toyota GR86, 2015+ Subaru WRX STI
SPL RLL FRS
Overview:
The SPL Parts Rear Lower Camber Arms (RLL) are precision-engineered suspension components designed for Subaru BRZ (2013–2020), Toyota 86 (2017–2020), Toyota GR86 (2022 and newer), and Subaru WRX STI (2015 and newer) models. These adjustable camber arms replace the factory lower rear control arms to provide enhanced suspension geometry control, improved handling, and increased durability. By eliminating the deflection and binding common with rubber or polyurethane bushings, the SPL RLL arms deliver sharper response and better lateral grip, making them ideal for enthusiasts seeking improved track performance and driving feedback.
These arms allow for fine-tuning of camber, track width, and installed motion ratios, offering a level of adjustability that enhances suspension tuning without the need for costly spring or sway bar replacements. Whether you are a dedicated track driver or a spirited street enthusiast, the SPL Rear Lower Camber Arms provide a significant upgrade to your vehicle’s rear suspension dynamics.
Key Features:
Engineered for maximum adjustability and durability, the SPL Rear Lower Camber Arms offer a range of features that set them apart from OEM and aftermarket alternatives:
- Wide camber adjustment range to optimize rear wheel alignment for improved handling and tire wear
- Three-position mounting holes for sway bar endlinks and shock mounts, enabling quick adjustment of motion ratios
- Adjustable motion ratios allow spring and sway bar effectiveness tuning without replacing hardware, providing up to ±13% spring rate adjustability
- Large-diameter chromoly double adjuster with 5/8" (15.8mm) rod end for up to 1.375" (35mm) total length adjustment, 50% more than many competitors
- Lightweight design at 3.57 lbs (1.62 kg) per arm, reducing unsprung weight by 17% compared to OEM arms
- Self-cleaning, PTFE-lined FK spherical bearings for smooth articulation and long-lasting performance
- Eliminates camber loss caused by bushing deflection, improving suspension precision and driver feedback
- On-car adjustment without jam nuts simplifies tuning and maintenance
- Made in the USA with high-quality materials and craftsmanship
Construction & Design:
The SPL Rear Lower Camber Arms are crafted from 6061-T6 anodized black aluminum for an optimal balance of strength and weight savings. The arms feature 6061-T6 aluminum spacers and 360Âş clamps to ensure secure mounting and durability under high loads. The double adjuster is made from electroless nickel-plated 4130 chromoly steel, providing exceptional toughness and corrosion resistance. Titanium 1/4-20 socket head Allen screws, anodized blue for corrosion protection and aesthetics, complete the assembly.
These materials and design choices result in a robust, lightweight component that withstands the rigors of aggressive driving and track use while enhancing suspension responsiveness and longevity.
Installation & Fitment:
The SPL Rear Lower Camber Arms are direct replacements for the factory rear lower control arms on Subaru BRZ (2013–2020), Toyota 86 (2017–2020), Toyota GR86 (2022+), and Subaru WRX STI (2015+). Installation requires standard suspension tools and basic mechanical knowledge. No modifications to the vehicle’s chassis or suspension components are necessary. The adjustable design allows for on-car tuning, enabling precise alignment adjustments without removal.
What's Included:
- One pair of SPL Rear Lower Camber Arms (left and right)
- 6061-T6 aluminum spacers and clamps
- Chromoly steel double adjusters with rod ends
- Titanium socket head Allen screws
- Installation instructions
Ideal For:
These rear lower camber arms are perfect for enthusiasts and racers who demand precise suspension tuning and improved handling characteristics from their Subaru BRZ, Toyota 86, Toyota GR86, or Subaru WRX STI. They are especially suited for track days, autocross, and spirited street driving where suspension response and feedback are critical. The adjustable motion ratios also make them an excellent choice for those looking to fine-tune spring and sway bar performance without swapping hardware.
