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STI Suspension

Cusco Rear Member Brace 2015-2021 WRX/STI

$204.30 - $204.30
$204.30
$204.30 - $204.30
$204.30

6A1 492 RM * Connect right and left rear subframe * Direct OE replacement

Cusco Rear Sway Bar Brace 2015-2021 STI

$156.60 - $156.60
$156.60
$156.60 - $156.60
$156.60

6A1 492 RL * Rigid brackets maximize a sway bar effect

Cusco Power Brace Rear Trunk Plus 2015-2021 WRX/STI

$240.30 - $240.30
$240.30
$240.30 - $240.30
$240.30

* Bolt on * Not Certified by SFI / FIA 6A1 492 TP

Cusco Power Brace Rear Member Side 2008-2021 WRX/STI

$156.60 - $156.60
$156.60
$156.60 - $156.60
$156.60

687 492 RS * Connect mounting points of Lateral link and Trailing rod

Cusco Front Side Power Brace 2015-2021 STI

$204.30 - $204.30
$204.30
$204.30 - $204.30
$204.30

6A1 492 FS * Connect front and rear LCA mounting point

Cusco Front Cross Member Brace 2015-2021 STI

$282.60 - $282.60
$282.60
$282.60 - $282.60
$282.60

* Connect front member and LCA mounting point 6A1 492 M

COBB Tuning Transmission Cross Member Isolator Kit 2008-2021 WRX/STI

$55.00 - $55.00
$55.00
$55.00 - $55.00
$55.00

Gearbox Cross Member Isolator Mount Kit consists of 4 Bushings. It will re-use the OEM crush tubes. Using this specially formulated Polyurethane ...

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Cusco Rear End Brace 2015-2021 WRX/STI

$204.30 - $204.30
$204.30
$204.30 - $204.30
$204.30

6A1 492 RE * Connect right and left rear subframe * Can not be used with OE bumper beam

Cusco Center Floor Power Brace 2008-2021 STI

$456.30 - $456.30
$456.30
$456.30 - $456.30
$456.30

692 492 C * Connect Front member, Transmission member and main frame

Cusco Lower Arm Bar 2015-2021 STI

$90.00 - $90.00
$90.00
$90.00 - $90.00
$90.00

684 475 A * Connect both LCA mounting point

Cusco Front Member Brace 2015-2021 WRX/STI

$204.30 - $204.30
$204.30
$204.30 - $204.30
$204.30

* Connect both front Subframe 6A1 492 FM

If your Subaru STI demands better handling and road grip, WRXDaily can help with premium STI suspension solutions. These expertly crafted components redefine control, whether you’re cruising through city streets or pushing limits at the track.

Our STI suspension upgrades will boost responsiveness and stability to give you a sharper edge behind the wheel. Whether you’re seeking ultimate control or high-performance balance, our Subaru STI suspension kits deliver unmatched reliability and precision. For instance, if you’re looking to upgrade your 2015 model, the 2015 STI coilovers offer customizable adjustments to meet your specific performance needs.

Take on curves, corners, and challenges with confidence. Browse WRXDaily’s range of STI suspension products to fine-tune your Subaru’s capabilities and conquer every road with precision.