SuperPro 2015 - 2021 Subaru WRX / STI Limited Front Lower Alloy Control Arm Kit (STD Align)

ALOY0016K

SuperPro's ALOY016K offers a number of significant upgrades in a single kit.

First the alloy control arms themselves are both lighter and stronger than the steel arms used on WRX models - the ALOY0016K effectively provides an STI-style alloy arm set with upgraded bushings already installed

Second; anti-lift geometry.  This keeps more of the tire's contact patch in contact with the pavement under acceleration allowing your power to more efficently get to the ground.

Third; SuperPro's proprietary polyurethane compound and DuroBall compound bushing used in the foward and rearward bushing assemblies offering a massive upgrade over the soft and heavily voided OEM bushings.  This reduces deflection and movement resulting in more consistent tire performance - better traction, better grip and reduced wheel hop.  The smaller inner bushings at the rear also features a bonded steel shell to reduce any friction during suspension travel to allow your springs and dampers to deliver the intended performance.

Fourth; this kit is complete - including required hardware and new ball joint bosses avoiding the issue with corrosion often making it difficult or impossible to re-use the originals.

Why Standard Geometry?  If you're looking for additional positive caster from this control arm upgrade - see our ALOY0017K kit that includes a double offset bushing design to increase positive caster.  The standard geometry kit came about for customers who wish to run a significantly lower ride height than stock and/or a much wider wheel and tire package - or simply a more aggressive (numerically lower) wheel offset.  The additional caster featured in the ALOY0017K will move the front wheel forward in the wheel opening slightly - normally not an issue, but in cars running very low ride heights, extremely aggressive wheel/tire combinations or some combination of the two - this can cause the tires to rub on the inner fender liner at or near full steering lock (like when backing out of a parking spot.  For these customers, we have introduced the ALOY0014K without the additional caster built in.

For a complete upgrade - look to our TRC0002 roll center and bump steer correction kit that further optimizes front end geometry in lowered cars and refreshes your ball joints and tie rod ends at the same time