Skip to content

STI Suspension

Cusco Type OS Front Strut Power Bar 2015-2021 WRX/STI

Original price $180.00 - Original price $180.00
Original price
$180.00
$180.00 - $180.00
Current price $180.00

6A1 540 A * Type 1 Aluminum Oval shape * Steel Blue Bracket Light weight aluminum oval shaft, strong & durable.

Cusco Type OS Rear Strut Tower Bar 2015-2021 WRX/STI

Original price $180.00 - Original price $180.00
Original price
$180.00
$180.00 - $180.00
Current price $180.00

694 541 A * Type 1 Aluminum Oval shape * Steel Blue color Bracket * Need modify on under cover Light weight aluminum oval shaft, strong & durable.

Cusco Adjustable Rear Upper Control Arms 2015-2021 WRX/STI

Original price $636.30 - Original price $636.30
Original price
$636.30
$636.30 - $636.30
Current price $636.30

* High Strengthen steel pipe can handle maximum impact from racing compound tires. * Turn Buckle Camber Adjustable ( Upper side +/- 15 mm) * Hard r...

View full details

Cusco Adjustable Lower Control Arms 2008+ WRX / 2008-2021 STI

Original price $516.60 - Original price $516.60
Original price
$516.60
$516.60 - $516.60
Current price $516.60

CUSCO's LCA for the 2015 WRX, WRX STI, and 13+ FRS / BRZ / 86 feature a pillow ball joint and are designed to secure traction in drifting and stabi...

View full details

Cusco Reinforced Differential Carrier 2015+ WRX / 2008-2021 STI

Original price $156.60 - Original price $156.60
Original price
$156.60
$156.60 - $156.60
Current price $156.60

* Pre-installed heavy-duty rubber bushings * Boxed steel construction Eliminate unwanted rear differential carrier movement for maximize direct tra...

View full details

Cusco Rear Member Brace 2015-2021 WRX/STI

Original price $204.30 - Original price $204.30
Original price
$204.30
$204.30 - $204.30
Current price $204.30

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

Cusco Rear Sway Bar Brace 2015-2021 STI

Original price $156.60 - Original price $156.60
Original price
$156.60
$156.60 - $156.60
Current price $156.60

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

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

Original price $240.30 - Original price $240.30
Original price
$240.30
$240.30 - $240.30
Current price $240.30

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

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

Original price $156.60 - Original price $156.60
Original price
$156.60
$156.60 - $156.60
Current price $156.60

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

Cusco Front Side Power Brace 2015-2021 STI

Original price $204.30 - Original price $204.30
Original price
$204.30
$204.30 - $204.30
Current price $204.30

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

Cusco Front Cross Member Brace 2015-2021 STI

Original price $282.60 - Original price $282.60
Original price
$282.60
$282.60 - $282.60
Current price $282.60

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

Cusco Shift Link Bushing 2015-2021 STI

Original price $36.00 - Original price $36.00
Original price
$36.00
$36.00 - $36.00
Current price $36.00

692 940 A

Cusco Rear Lower Control Arm Bushing Kit 2015-2021 WRX/STI

Original price $216.00 - Original price $216.00
Original price
$216.00
$216.00 - $216.00
Current price $216.00

692 464 HV

Cusco Auto Levelizer Adjusting Rod 2015-2021 WRX/STI

Original price $45.00 - Original price $45.00
Original price
$45.00
$45.00 - $45.00
Current price $45.00

Corrects headlight beams for lowered vehicles. * Direct factory replacement 100% bolt-on * Adjustable length via turnbuckle * Short type (73 mm ~ 9...

View full details

Cusco Adjustable Rear End Link Set 2015-2021 WRX/STI

Original price $162.00 - Original price $162.00
Original price
$162.00
$162.00 - $162.00
Current price $162.00

Solid pillow ball rod end makes no deflection * Pillow ball rod end / Ball joint * Aluminum Billet Collar * Adjustable length : 73 mm ~ 84 mm

Cusco 22mm Rear Sway Bar 2015-2021 WRX/STI

Original price $252.00 - Original price $252.00
Original price
$252.00
$252.00 - $252.00
Current price $252.00

Maintain great comfort while suppressing body roll during cornering * 22 mm OD ( vs. 20 mm OEM ) * 130% Solid vs. OEM * HD Bushings included

Cusco Adjustable Toe Arms 2015-2021 WRX/STI

Original price $540.00 - Original price $540.00
Original price
$540.00
$540.00 - $540.00
Current price $540.00

Rear Lateral Links Enables suspension toe adjustment * Front side * Pillowball type * ±12mm of adjustment (via turnbuckle)

Cusco Adjustable Rear Trailing Rods 2015-2021 WRX/STI

Original price $420.30 - Original price $420.30
Original price
$420.30
$420.30 - $420.30
Current price $420.30

Cusco's rear trailing arm controls unwanted force under acceleration and braking. Cusco's adjustable pillowball trailing arms prevents unwanted whe...

View full details

Cusco Rear End Brace 2015-2021 WRX/STI

Original price $204.30 - Original price $204.30
Original price
$204.30
$204.30 - $204.30
Current price $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

Original price $456.30 - Original price $456.30
Original price
$456.30
$456.30 - $456.30
Current price $456.30

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

Cusco Lower Arm Bar 2015-2021 STI

Original price $90.00 - Original price $90.00
Original price
$90.00
$90.00 - $90.00
Current price $90.00

684 475 A * Connect both LCA mounting point

Cusco Front Member Brace 2015-2021 WRX/STI

Original price $204.30 - Original price $204.30
Original price
$204.30
$204.30 - $204.30
Current price $204.30

* Connect both front Subframe 6A1 492 FM

Cusco Type X Rear Cross Bar 2015-2021 WRX/STI

Original price $276.30 - Original price $276.30
Original price
$276.30
$276.30 - $276.30
Current price $276.30

6A1 541 AX * Steel Oval shape * Cusco Blue Color * Need modify on under cover 4 points diagonal connection for maximum reinforcement

Cusco Rear Trailing Arm Bushings 2015-2021 WRX/STI

Original price $216.00 - Original price $216.00
Original price
$216.00
$216.00 - $216.00
Current price $216.00

692 464 NV

Cusco End Link Bushing Set 2015-2021 WRX/STI

Original price $192.60 - Original price $192.60
Original price
$192.60
$192.60 - $192.60
Current price $192.60

692 464 SV

Cusco Front Lateral Link Bushings (Lower Arm - Body Side) 2015-2021 WRX/STI

Original price $216.00 - Original price $216.00
Original price
$216.00
$216.00 - $216.00
Current price $216.00

Cusco Rear Upper Control Arm Bushings (Front Side) 2015-2021 WRX/STI

Original price $216.00 - Original price $216.00
Original price
$216.00
$216.00 - $216.00
Current price $216.00

965 464 LV

Cusco Rear Upper Control Arm Bushings (Rear Side) 2015-2021 WRX/STI

Original price $216.00 - Original price $216.00
Original price
$216.00
$216.00 - $216.00
Current price $216.00

965 464 IV

Cusco Front Lower Control Arm Bushings (Rear Side) 2015-2021 WRX/STI

Original price $504.00 - Original price $504.00
Original price
$504.00
$504.00 - $504.00
Current price $504.00

Cusco Front Lower Control Arm Bushings (Front Side) 2015-2021 WRX/STI

Original price $216.00 - Original price $216.00
Original price
$216.00
$216.00 - $216.00
Current price $216.00

692 464 BV

Cusco 26mm Front Sway Bar 2015-2021 STI

Original price $312.30 - Original price $312.30
Original price
$312.30
$312.30 - $312.30
Current price $312.30

Maintain great comfort while suppressing body roll during cornering * 26 mm OD ( vs. 24 mm OEM ) * 127% Solid vs. OEM * HD Bushings included

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.