Collection: 15-21 STI
The 2015-2021 Subaru WRX STI stands as a modern embodiment of Subaru’s rally heritage, combining raw power with precise handling to create a driving experience that thrills both enthusiasts and purists. Powered by the iconic 2.5L turbocharged boxer engine, this generation STI delivers 310 horsepower (updated for 2018) through its symmetrical all-wheel drive system, giving it incredible traction and acceleration across all road surfaces. With a stiffened chassis, advanced driver-controlled center differential (DCCD), and rally-bred suspension, the STI is engineered to carve through corners with precision while maintaining Subaru’s legendary confidence-inspiring grip.
In 2018, Subaru introduced several key updates to refine the STI even further. The addition of stronger Brembo brakes with six-piston front calipers and cross-drilled rotors provides even greater stopping power and fade resistance. Subaru also recalibrated the DCCD for smoother handling dynamics and more balanced power distribution. A refined interior, featuring updated materials and an upgraded infotainment system, made the 2018 STI more tech-forward and driver-focused. These changes elevate the already-capable 2015-2017 STI, making the 2018+ model years an even sharper, more engaging performance car both on and off the track. Whether tackling winding roads or dominating at autocross, the 2015-2021 STI continues to deliver the kind of visceral, turbocharged thrill that Subaru fans crave.
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Cusco Power Brace Front Member 2015 Subaru Impreza USDM Model (VA Chassis)
Vendor:CuscoRegular price $261.00 USDRegular price$290.00 USDSale price $261.00 USDSale -
Cusco Power Brace Front Cross Member 2015 Subaru Impeza USDM Model (VA Chassis)
Vendor:CuscoRegular price $360.00 USDRegular price$400.00 USDSale price $360.00 USDSale -
Cusco Power Brace Rear Lateral Sway Bar Bracket Subaru GRB / GVB / VAB / VAG / VMG / VM4
Vendor:CuscoRegular price $220.50 USDRegular price$245.00 USDSale price $220.50 USDSale -
Cusco Power Brace Rear Member 2015 Subaru Impreza USDM Model (VA Chassis)
Vendor:CuscoRegular price $261.00 USDRegular price$290.00 USDSale price $261.00 USDSale -
Cusco Front Strut Tower Bar 2015 Subaru Impreza USDM Model (VA Chassis)
Vendor:CuscoRegular price $198.00 USDRegular price$220.00 USDSale price $198.00 USDSale -
Cusco Strut Bar 2015 Subaru Impreza USDM Model (VA Chassis)
Vendor:CuscoRegular price $292.50 USDRegular price$325.00 USDSale price $292.50 USDSale -
Cusco Power Brace Front Sides 2015 Subaru Impreza USDM Model (VA Chassis)
Vendor:CuscoRegular price $261.00 USDRegular price$290.00 USDSale price $261.00 USDSale -
Cusco Power Trunk Brace 15+ Subaru Impreza / WRX / STI
Vendor:CuscoRegular price $274.50 USDRegular price$305.00 USDSale price $274.50 USDSold out -
Cusco Coilovers Street Zero Front -Pillow / Rear -Rubber Upper 2015+ WRX STI ONLY
Vendor:CuscoRegular price $1,512.00 USDRegular price$1,680.00 USDSale price $1,512.00 USDSale -
Cusco Sway Bar End Link Set Rear Pillow Ball Rod End Adjustable (73-87mm) 08+ Subaru Impreza WRX/STI
Vendor:CuscoRegular price $225.00 USDRegular price$250.00 USDSale price $225.00 USDSale -
XClutch 15-21 Subaru WRX STi Base 2.5L 7.25in Triple Solid Ceramic Clutch Kit
Vendor:XCLUTCHRegular price $2,456.35 USDRegular price$2,729.28 USDSale price $2,456.35 USDSale -
Whiteline 2013+ Subaru BRZ Rear Lower Control Arm Repair/Service Kit
Vendor:WhitelineRegular price $37.50 USDRegular price$46.88 USDSale price $37.50 USDSale -
SuperPro 2006 Subaru B9 Tribeca Limited Rear Differental-to-Subframe Mount Kit
Vendor:SuperproRegular price $100.99 USDRegular priceSale price $100.99 USD -
SuperPro 2015 Subaru WRX Limited Rear 20mm Sway Bar Mount Bushing Set
Vendor:SuperproRegular price $37.99 USDRegular priceSale price $37.99 USD -
Cusco Subaru STi GRB/GVB/VAB/(WRX) VAG/(Forester)SJ5 & SJG Rear Differential Carrier
Vendor:CuscoRegular price $166.50 USDRegular price$185.00 USDSale price $166.50 USDSale -
Eibach 22mm Rear Anti-Roll-Kit for 08-09 Subaru WRX (4&5 dr) & STi
Vendor:EibachRegular price $269.00 USDRegular price$298.89 USDSale price $269.00 USDSale



