2021 Subaru WRX STI Mods, Upgrades & Accessories
WRX STI Upgrades by WRX STI Experts.
The 2021 STI was the last year of production for the VB STI, and thus far, the last remaining model for the US markets. This paused the 17-year run for the legendary EJ25 that remained as the heart of the STI. In Japan at the 2024 Tokyo Auto Salon, Subaru showcased a Special Edition WRX S4 STI Sport prototype that had been based on a JDM WRX S4 Sport Japanese model. It is currently rumored that the next generation of STI will be an all-electric version.
If that is confirmed, the 2021 STI will be the last combustion engine design (for now). Even still, the 2021 STI is still a rally-inspired AWD sedan that packs 300+ HP and has a rich performance aftermarket support system to make this car handle better, drive faster, while looking and sounding more aggressive. The Tomei Expreme Ti Cat-Back Exhaust features full titanium construction that will save a great amount of weight, while adding more horsepower and torque. The Faction Fab FL V2 Coilovers have a wide range of adjustment that include height, front camber settings, and damping stiffness to execute that preferred stance. And you can add more downforce by installing an APR Carbon Fiber Wind Splitter to reduce lift at higher speeds, while making your STI transform into race car mode.
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WedsSport SA25R PSB 19x8.5 +45mm 5x114.3 (Single Wheel) - 2015-2024 Subaru WRX / 2015-2021 STI / 2019-2024 Forester
TIEJC3
Killer B 3-Inch to 3-Inch Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet - 2002-2007 Subaru WRX / 2004-2021 STI
1.10007.1
Faction Fab Subaru Rear Shifter Bushing - 2015-2021 Subaru STI / 1998-2012 Forester / 1993-2014 Impreza / 1995-2009 Legacy / 2000-2009 Outback / 2013-2016 Scion FR-S / 2013-2024 Subaru BRZ / 2017-2019 Toyota 86 / 2022-2024 GR86
65 In Stock
TOWTAG-W18
TurboXS Front License Plate Relocation Kit - 2018-2021 Subaru WRX / STI
CF-818012
APR Performance Carbon Fiber Type B Vortex Generator (Roof) - 2017 Subaru WRX & STI with 7 Starlink / 2018-2021 WRX / STI
11 In Stock
RAL MF32-UR-BLK/WH
Rally Armor Mud Flaps - Black Mud Flap with White Logo - 2015-2021 Subaru WRX / STI
4 In Stock
RJ240
OLM LE Dry Carbon Fiber Rear Door Trim Upper Panels - 2015-2021 Subaru WRX / STI
32 In Stock
EYL-WRX14-CF
OLM S-line Carbon Fiber Headlight Eyelids - 2015-2021 Subaru WRX / STI
22 In Stock
6A1489A
Cusco Reinforced Rear Differential Carrier - 2015-2021 Subaru WRX / STI / 2008-2014 Impreza
1 In Stock
FS-815028
APR Performance Carbon Fiber Rear Spats - 2015-2021 Subaru WRX / STI
LVC-BK-1
Compressive louver cover - 2015-2021 Subaru WRX / STI
4 In Stock
190040B
Manley Performance Turbo Tuff Series Crankshaft 79mm Subaru EJ25 Models - Subaru Models (inc. 2006-2014 Subaru WRX / 2004-2021 Subaru STI)
140-12876-R
Wilwood AERO6 Front Brake Kit 14in Slotted Red - 2002-2014 Subaru WRX / 2004-2021 Subaru STI
2 In Stock
6A1492RE
Cusco Rear End Power Brace - 2015-2021 Subaru WRX / STI
29 In Stock
090235
GrimmSpeed Intercooler Core - 2015-2021 Subaru WRX / STI
123000
GrimmSpeed Turbocharger Oil Feed Line Kit for Aftermarket Turbos - 2002-2014 Subaru WRX / 2004-2021 STI
69 In Stock
WGCRX38EG2
Rays Gram Lights 57CR Gun Blue II 18x9.5 +38 5x114.3 (Single Wheel) - 2015-2024 Subaru WRX / 2015-2021 STI / 2019-2024 Forester
ISCS012CA-V3-B
ISC Suspension V3 Control Arms in Stealth Black Finish - 2015-2024 Subaru WRX / 2015-2021 STI / 2009-2017 Forester / 2008-2014 Impreza / 2013-2016 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2019 Toyota 86
13 In Stock
ASM-TAC-731
PERRIN EBCS Pro Boost Control Solenoid - 2015-2021 Subaru STI / 2008-2014 Impreza
712455
COBB Throttle Body Coupler - 2015-2021 Subaru STI / 2004-2008 Forester / 2002-2014 Impreza
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