Skip to content

Home
Shop
Contact Us
FAQs

Country/region

Country/region

Facebook
Instagram
TikTok
YouTube

Home
Shop
Contact Us
FAQs

Search

Item added to your cart

View cart

Collection: 2015-2021 Subaru STI parts

Sort by:

1139 products

Filter:

Product type (0)

Product type

Air Boxes (1 product)
Air Intake + Accessories (13 products)
Alternator Mount Kit (2 products)
Antennas + Accessories (1 product)
Axle Back (2 products)
Battery Tiedowns (5 products)
Belts - Timing, Accessory (1 product)
Big Brake Kits (1 product)
Boost Controllers + Accessories (3 products)
BOV and BPV (16 products)
Brackets (3 products)
Brake Calipers + Rebuild (8 products)
Brake Hardware (3 products)
Brake Line Kits (5 products)
Brake Pads (44 products)
Brake Rotors (57 products)
Bushing Kits (23 products)
Cat Back Exhaust (21 products)
Clutch Discs (4 products)
Clutch Kits - Multi (6 products)
Clutch Kits - Single (14 products)
Coilovers + Accessories (6 products)
Control Arms (4 products)
Cylinder Head + Sets (18 products)
Cylinder Head Gaskets (2 products)
Cylinder Head Studs + Bolts (2 products)
Diff Mounts + Braces + Bushings (4 products)
Dipsticks (5 products)
ECU Tunes (4 products)
Engine Covers (4 products)
Engine Gaskets + Sets (1 product)
Engine Long Block (10 products)
Engine Mounts (26 products)
Engine Oil Change Kit (2 products)
Engine Short Block (7 products)
Exhaust Adapters (5 products)
Exhaust Gaskets (4 products)
Exhaust Hangers (2 products)
Exhaust Manifolds + Accessories (5 products)
Exterior Trim (4 products)
Fans & Shrouds (2 products)
Flanges (2 products)
Flywheels (3 products)
Fog Lights (2 products)
Fuel Injectors + Accessories (5 products)
Fuel Lines (61 products)
Fuel Pressure Regulators + Accessories (1 product)
Fuel Pumps + Hangers (5 products)
Fuel Rails (8 products)
Halos (2 products)
Hardware (5 products)
Hoses (4 products)
Intercoolers + Accessories (11 products)
LED (3 products)
License Plate Relocation (4 products)
Lowering Springs (3 products)
Manual Transmission Mount (6 products)
Manual Transmission Synchro Assembly (2 products)
Mud Flaps (9 products)
Multi-Purpose Light Bulb (2 products)
Oil Caps (5 products)
Oil Coolers (4 products)
Oil Filters (3 products)
Oil Pan + Baffles + Gaskets (6 products)
Oil Separators (5 products)
Oil Strainers + Gaskets (1 product)
Power Packages (10 products)
Pressure Plates (2 products)
Pulleys - Crank, Underdrive (5 products)
Radiator Caps (4 products)
Radiator Hoses (2 products)
Radiator Shrouds (5 products)
Radiator Stays (2 products)
Radiators (3 products)
Seat Brackets & Frames (2 products)
Shifter Bushings (11 products)
Shifters (3 products)
Shock Mounts & Camber Plates (3 products)
Shocks and Struts (6 products)
Spark Plugs (2 products)
Steering Dampers (2 products)
Strut Bars (5 products)
Suspension Arms & Components (5 products)
Suspension Controllers (2 products)
Sway Bar Bushings (2 products)
Sway Bar Endlinks (8 products)
Sway Bars (7 products)
Timing Belts + Components (7 products)
Tow Hooks (4 products)
Transmission Mounts (5 products)
Turbine Housings (4 products)
Turbo Heat Management (1 product)
Turbo Inlets (2 products)
Turbo Kits (2 products)
Turbo Oil Lines + Accessories (1 product)
Turbochargers (8 products)
Wastegate + Accessories (4 products)
Wheel Spacers & Adapters (5 products)
Wheels (289 products)
Wheels - Cast (177 products)

Air Boxes (1 product)
Air Intake + Accessories (13 products)
Alternator Mount Kit (2 products)
Antennas + Accessories (1 product)
Axle Back (2 products)
Battery Tiedowns (5 products)
Belts - Timing, Accessory (1 product)
Big Brake Kits (1 product)
Boost Controllers + Accessories (3 products)
BOV and BPV (16 products)
Brackets (3 products)
Brake Calipers + Rebuild (8 products)
Brake Hardware (3 products)
Brake Line Kits (5 products)
Brake Pads (44 products)
Brake Rotors (57 products)
Bushing Kits (23 products)
Cat Back Exhaust (21 products)
Clutch Discs (4 products)
Clutch Kits - Multi (6 products)
Clutch Kits - Single (14 products)
Coilovers + Accessories (6 products)
Control Arms (4 products)
Cylinder Head + Sets (18 products)
Cylinder Head Gaskets (2 products)
Cylinder Head Studs + Bolts (2 products)
Diff Mounts + Braces + Bushings (4 products)
Dipsticks (5 products)
ECU Tunes (4 products)
Engine Covers (4 products)
Engine Gaskets + Sets (1 product)
Engine Long Block (10 products)
Engine Mounts (26 products)
Engine Oil Change Kit (2 products)
Engine Short Block (7 products)
Exhaust Adapters (5 products)
Exhaust Gaskets (4 products)
Exhaust Hangers (2 products)
Exhaust Manifolds + Accessories (5 products)
Exterior Trim (4 products)
Fans & Shrouds (2 products)
Flanges (2 products)
Flywheels (3 products)
Fog Lights (2 products)
Fuel Injectors + Accessories (5 products)
Fuel Lines (61 products)
Fuel Pressure Regulators + Accessories (1 product)
Fuel Pumps + Hangers (5 products)
Fuel Rails (8 products)
Halos (2 products)
Hardware (5 products)
Hoses (4 products)
Intercoolers + Accessories (11 products)
LED (3 products)
License Plate Relocation (4 products)
Lowering Springs (3 products)
Manual Transmission Mount (6 products)
Manual Transmission Synchro Assembly (2 products)
Mud Flaps (9 products)
Multi-Purpose Light Bulb (2 products)
Oil Caps (5 products)
Oil Coolers (4 products)
Oil Filters (3 products)
Oil Pan + Baffles + Gaskets (6 products)
Oil Separators (5 products)
Oil Strainers + Gaskets (1 product)
Power Packages (10 products)
Pressure Plates (2 products)
Pulleys - Crank, Underdrive (5 products)
Radiator Caps (4 products)
Radiator Hoses (2 products)
Radiator Shrouds (5 products)
Radiator Stays (2 products)
Radiators (3 products)
Seat Brackets & Frames (2 products)
Shifter Bushings (11 products)
Shifters (3 products)
Shock Mounts & Camber Plates (3 products)
Shocks and Struts (6 products)
Spark Plugs (2 products)
Steering Dampers (2 products)
Strut Bars (5 products)
Suspension Arms & Components (5 products)
Suspension Controllers (2 products)
Sway Bar Bushings (2 products)
Sway Bar Endlinks (8 products)
Sway Bars (7 products)
Timing Belts + Components (7 products)
Tow Hooks (4 products)
Transmission Mounts (5 products)
Turbine Housings (4 products)
Turbo Heat Management (1 product)
Turbo Inlets (2 products)
Turbo Kits (2 products)
Turbo Oil Lines + Accessories (1 product)
Turbochargers (8 products)
Wastegate + Accessories (4 products)
Wheel Spacers & Adapters (5 products)
Wheels (289 products)
Wheels - Cast (177 products)

Brand (0)

Brand

Color (0)

Color

Amber yellow (2 products)
Black (75 products)
Blue (33 products)
Bronze (57 products)
Cool White (1 product)
Gold (6 products)
Green (3 products)
Grey (1 product)
Gunmetal (31 products)
Pure white (2 products)
Red (7 products)
Silver (41 products)
White (56 products)

Amber yellow (2 products)
Black (75 products)
Blue (33 products)
Bronze (57 products)
Cool White (1 product)
Gold (6 products)
Green (3 products)
Grey (1 product)
Gunmetal (31 products)
Pure white (2 products)
Red (7 products)
Silver (41 products)
White (56 products)

Price

The highest price is $18,199.99

$

From

To

Availability (0)

Availability

In stock (1027 products)
Out of stock (112 products)

In stock (1027 products)
Out of stock (112 products)

Sort by:

Filter and sort Filter

Filter and sort

Filter

1139 products

Product type

Air Boxes (1 products)
Air Intake + Accessories (13 products)
Alternator Mount Kit (2 products)
Antennas + Accessories (1 products)
Axle Back (2 products)
Battery Tiedowns (5 products)
Belts - Timing, Accessory (1 products)
Big Brake Kits (1 products)
Boost Controllers + Accessories (3 products)
BOV and BPV (16 products)
Brackets (3 products)
Brake Calipers + Rebuild (8 products)
Brake Hardware (3 products)
Brake Line Kits (5 products)
Brake Pads (44 products)
Brake Rotors (57 products)
Bushing Kits (23 products)
Cat Back Exhaust (21 products)
Clutch Discs (4 products)
Clutch Kits - Multi (6 products)
Clutch Kits - Single (14 products)
Coilovers + Accessories (6 products)
Control Arms (4 products)
Cylinder Head + Sets (18 products)
Cylinder Head Gaskets (2 products)
Cylinder Head Studs + Bolts (2 products)
Diff Mounts + Braces + Bushings (4 products)
Dipsticks (5 products)
ECU Tunes (4 products)
Engine Covers (4 products)
Engine Gaskets + Sets (1 products)
Engine Long Block (10 products)
Engine Mounts (26 products)
Engine Oil Change Kit (2 products)
Engine Short Block (7 products)
Exhaust Adapters (5 products)
Exhaust Gaskets (4 products)
Exhaust Hangers (2 products)
Exhaust Manifolds + Accessories (5 products)
Exterior Trim (4 products)
Fans & Shrouds (2 products)
Flanges (2 products)
Flywheels (3 products)
Fog Lights (2 products)
Fuel Injectors + Accessories (5 products)
Fuel Lines (61 products)
Fuel Pressure Regulators + Accessories (1 products)
Fuel Pumps + Hangers (5 products)
Fuel Rails (8 products)
Halos (2 products)
Hardware (5 products)
Hoses (4 products)
Intercoolers + Accessories (11 products)
LED (3 products)
License Plate Relocation (4 products)
Lowering Springs (3 products)
Manual Transmission Mount (6 products)
Manual Transmission Synchro Assembly (2 products)
Mud Flaps (9 products)
Multi-Purpose Light Bulb (2 products)
Oil Caps (5 products)
Oil Coolers (4 products)
Oil Filters (3 products)
Oil Pan + Baffles + Gaskets (6 products)
Oil Separators (5 products)
Oil Strainers + Gaskets (1 products)
Power Packages (10 products)
Pressure Plates (2 products)
Pulleys - Crank, Underdrive (5 products)
Radiator Caps (4 products)
Radiator Hoses (2 products)
Radiator Shrouds (5 products)
Radiator Stays (2 products)
Radiators (3 products)
Seat Brackets & Frames (2 products)
Shifter Bushings (11 products)
Shifters (3 products)
Shock Mounts & Camber Plates (3 products)
Shocks and Struts (6 products)
Spark Plugs (2 products)
Steering Dampers (2 products)
Strut Bars (5 products)
Suspension Arms & Components (5 products)
Suspension Controllers (2 products)
Sway Bar Bushings (2 products)
Sway Bar Endlinks (8 products)
Sway Bars (7 products)
Timing Belts + Components (7 products)
Tow Hooks (4 products)
Transmission Mounts (5 products)
Turbine Housings (4 products)
Turbo Heat Management (1 products)
Turbo Inlets (2 products)
Turbo Kits (2 products)
Turbo Oil Lines + Accessories (1 products)
Turbochargers (8 products)
Wastegate + Accessories (4 products)
Wheel Spacers & Adapters (5 products)
Wheels (289 products)
Wheels - Cast (177 products)

Clear

Brand

Clear

Color

Amber yellow (2 products)
Black (75 products)
Blue (33 products)
Bronze (57 products)
Cool White (1 products)
Gold (6 products)
Green (3 products)
Grey (1 products)
Gunmetal (31 products)
Pure white (2 products)
Red (7 products)
Silver (41 products)
White (56 products)

Clear

Price

The highest price is $18,199.99

$

From

$

To

Clear

Availability

In stock (1027 products)
Out of stock (112 products)

Clear

Sort by:

Remove all

1139 products

AWE Tuning Subaru 2008-2024+ WRX / 2011-2021 STI Track-to-Touring Conversion Kit

Sale

AWE Tuning Subaru 2008-2024+ WRX / 2011-2021 STI Track-to-Touring Conversion Kit

Regular price $720.00 USD

Regular price ~~$757.89 USD~~ Sale price $720.00 USD
Unit price per

Sale
AWE Tuning 2015+ Subaru WRX (VA) Track-to-Touring Conversion Kit

Sale

AWE Tuning 2015+ Subaru WRX (VA) Track-to-Touring Conversion Kit

Regular price $720.00 USD

Regular price ~~$757.89 USD~~ Sale price $720.00 USD
Unit price per

Sale
AWE Tuning Subaru 11-24+ WRX / 11-21 STI Sedan Track Edition Exhaust - Diamond Black Tips (102mm)

Sale

AWE Tuning Subaru 11-24+ WRX / 11-21 STI Sedan Track Edition Exhaust - Diamond Black Tips (102mm)

Regular price $1,235.00 USD

Regular price ~~$1,300.00 USD~~ Sale price $1,235.00 USD
Unit price per

Sale
AWE Tuning Subaru 08-24+ WRX / 11-21 STI Sedan Track Edition Exhaust - Chrome Silver Tips (102mm)

Sale

AWE Tuning Subaru 08-24+ WRX / 11-21 STI Sedan Track Edition Exhaust - Chrome Silver Tips (102mm)

Regular price $1,185.00 USD

Regular price ~~$1,247.37 USD~~ Sale price $1,185.00 USD
Unit price per

Sale
AWE Tuning Subaru 08-24+ WRX / 11-21 STI Sedan Touring Edition Exhaust - Diamond Black Tip (102mm)

Sale

AWE Tuning Subaru 08-24+ WRX / 11-21 STI Sedan Touring Edition Exhaust - Diamond Black Tip (102mm)

Regular price $1,600.00 USD

Regular price ~~$1,684.21 USD~~ Sale price $1,600.00 USD
Unit price per

Sale
AWE Tuning 2015+ Subaru WRX VA Sedan Touring Edition Exhaust - Diamond Black Tips (102mm)

Sale

AWE Tuning 2015+ Subaru WRX VA Sedan Touring Edition Exhaust - Diamond Black Tips (102mm)

Regular price $1,600.00 USD

Regular price ~~$1,684.21 USD~~ Sale price $1,600.00 USD
Unit price per

Sale
AWE Tuning Subaru 08-24+ WRX / 11-21 STI Sedan Touring Edition Exhaust - Chrome Silver Tip (102mm)

Sale

AWE Tuning Subaru 08-24+ WRX / 11-21 STI Sedan Touring Edition Exhaust - Chrome Silver Tip (102mm)

Regular price $1,545.00 USD

Regular price ~~$1,626.32 USD~~ Sale price $1,545.00 USD
Unit price per

Sale
AWE Tuning 2015+ Subaru WRX VA Sedan Touring Edition Exhaust - Chrome Silver Tips (102mm)

Sale

AWE Tuning 2015+ Subaru WRX VA Sedan Touring Edition Exhaust - Chrome Silver Tips (102mm)

Regular price $1,545.00 USD

Regular price ~~$1,626.32 USD~~ Sale price $1,545.00 USD
Unit price per

Sale
Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Black UR Mud Flap w/ Teal Altered Font Logo

Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Black UR Mud Flap w/ Teal Altered Font Logo

Regular price $190.50 USD

Regular price Sale price $190.50 USD
Unit price per
Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Black UR Mud Flap w/ Silver Logo

Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Black UR Mud Flap w/ Silver Logo

Regular price $190.50 USD

Regular price Sale price $190.50 USD
Unit price per
Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Black UR Mud Flap w/ Red Logo

Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Black UR Mud Flap w/ Red Logo

Regular price $190.50 USD

Regular price Sale price $190.50 USD
Unit price per
Rally Armor 15-21 Subaru WRX & STI Black Mud Flap Green Altered Font Logo

Rally Armor 15-21 Subaru WRX & STI Black Mud Flap Green Altered Font Logo

Regular price $190.50 USD

Regular price Sale price $190.50 USD
Unit price per
Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Black UR Mud Flap w/ Green Logo

Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Black UR Mud Flap w/ Green Logo

Regular price $190.50 USD

Regular price Sale price $190.50 USD
Unit price per
Rally Armor 15-21 Subaru WRX & STI Black Mud Flap Blue Altered Font Logo

Rally Armor 15-21 Subaru WRX & STI Black Mud Flap Blue Altered Font Logo

Regular price $190.50 USD

Regular price Sale price $190.50 USD
Unit price per
Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Blue UR Mud Flap w/ White Logo

Rally Armor 15-21 Subaru WRX/STI (Sedan ONLY) Blue UR Mud Flap w/ White Logo

Regular price $212.50 USD

Regular price Sale price $212.50 USD
Unit price per
Work CR Kiwami 18x9.5 +38 Matte Black 5X114.3

Work CR Kiwami 18x9.5 +38 Matte Black 5X114.3

Regular price $520.00 USD

Regular price Sale price $520.00 USD
Unit price per
Work CR Kiwami 18x9.5 +30 Matte Bronze 5X114.3

Work CR Kiwami 18x9.5 +30 Matte Bronze 5X114.3

Regular price $520.00 USD

Regular price Sale price $520.00 USD
Unit price per
Work T7R 18x9.5 +38 Matte Gunmetal 5X114.3

Work T7R 18x9.5 +38 Matte Gunmetal 5X114.3

Regular price $520.00 USD

Regular price Sale price $520.00 USD
Unit price per
Work T7R 18x9.5 +38 Matte Bronze 5X114.3

Work T7R 18x9.5 +38 Matte Bronze 5X114.3

Regular price $520.00 USD

Regular price Sale price $520.00 USD
Unit price per
Work CR Kiwami 18x9.5 +38 Matte Bronze 5X114.3

Work CR Kiwami 18x9.5 +38 Matte Bronze 5X114.3

Regular price $520.00 USD

Regular price Sale price $520.00 USD
Unit price per
Work ZR10 18x9.5 +30 Titanium Diamond Lip Cut 5X114.3

Work ZR10 18x9.5 +30 Titanium Diamond Lip Cut 5X114.3

Regular price $570.00 USD

Regular price Sale price $570.00 USD
Unit price per
Work ZR10 18x9.5 +30 Glim Black Diamond Cut Rim 5X114.3

Work ZR10 18x9.5 +30 Glim Black Diamond Cut Rim 5X114.3

Regular price $590.00 USD

Regular price Sale price $590.00 USD
Unit price per
Work ZR10 18x9.5 +30 Black Diamond Lip Cut 5X114.3

Work ZR10 18x9.5 +30 Black Diamond Lip Cut 5X114.3

Regular price $570.00 USD

Regular price Sale price $570.00 USD
Unit price per
Work ZR10 18x9.5 +30 Azure White 5X114.3

Work ZR10 18x9.5 +30 Azure White 5X114.3

Regular price $560.00 USD

Regular price Sale price $560.00 USD
Unit price per

1
…
45
46
47
48

Contact Us

sales@circuitdemon.com

585-420-6920

640 East Main Street

Palmyra, NY 14522

Open Monday through Friday 9am-5pm

Menu

The New Circuit Demon
Shop
Blog
Contact Us
FAQ's

Share your email to be the first to know about exclusive offers, behind the scenes footage, and new product alerts.

Email

Facebook
Instagram
YouTube
TikTok

Country/region

Country/region

© 2025, Circuit Demon Powered by Shopify

Refund policy
Privacy policy
Terms of service
Shipping policy
Contact information

Choosing a selection results in a full page refresh.
Opens in a new window.

Search