Skip to content

2004-2007 Subaru STI Tuning & Performance

Here, you will find tuning and part support for the  2004-2007 "GD" chassis STi.

Filters

$
$
Save 6% Save %
$399.00
$399.00 - $399.00
$399.00
$375.00
$375.00 - $375.00
$375.00

CSF 02-07 Subaru WRX/STI Radiator - Black Finish

CSF
In stock

CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your WRX/STI running at its best, a ...

View full details
$399.00
$399.00 - $399.00
$399.00
$375.00
$375.00 - $375.00
$375.00
Save 6% Save %
Save 15% Save %
$522.50
$522.50 - $522.50
$522.50
$444.13
$444.13 - $444.13
$444.13

Clutch Masters 04-08 Subaru WRX Sti 2.5L Eng. 6-Spd Steel Flywheel

Clutch Masters
Low stock

Every Clutch Masters flywheel is proudly designed and manufactured in the USA. Flywheels are first designed in CAD and are then precision CNC machi...

View full details
$522.50
$522.50 - $522.50
$522.50
$444.13
$444.13 - $444.13
$444.13
Save 15% Save %
Save 19% Save %
$2,586.00
$2,586.00 - $2,586.00
$2,586.00
$2,095.00
$2,095.00 - $2,095.00
$2,095.00

ACT 04-20 WRX STI Mod Twin XT Race Kit Sprung Hub Torque Cap 1120ft/lbs Not For Street Use

ACT
Low stock

T2R-S05 Mod-Twin 225 XT Sprung Race Kit performs aggressive launches and smoother shifting in high powered AWD’s by combining twice the ceramic fri...

View full details
$2,586.00
$2,586.00 - $2,586.00
$2,586.00
$2,095.00
$2,095.00 - $2,095.00
$2,095.00
Save 19% Save %
Save 19% Save %
$2,381.00
$2,381.00 - $2,381.00
$2,381.00
$1,929.00
$1,929.00 - $1,929.00
$1,929.00

ACT Subaru 04-20 WRX STI Mod Twin HD Street Kit Unsprung Mono-Drive Hub Torque Capacity 700ft/lbs

ACT
Low stock

T1S-S07 Mod-Twin 225 HD Rigid Street Kit blends easy pedal feel, smooth but positive engagement with quick shifting for high powered AWD’s by combi...

View full details
$2,381.00
$2,381.00 - $2,381.00
$2,381.00
$1,929.00
$1,929.00 - $1,929.00
$1,929.00
Save 19% Save %
Save 19% Save %
$2,598.00
$2,598.00 - $2,598.00
$2,598.00
$2,104.00
$2,104.00 - $2,104.00
$2,104.00

ACT 04-20 WRX STI Mod Twin HD Race Kit Sprung Mono-Drive Hub Torque Cap 895ft/lbs Not For Street Use

ACT
Low stock

T1R-S05 Mod-Twin 225 HD Sprung Race Kit performs aggressive launches and smoother shifting in high powered AWD’s by combining twice the ceramic fri...

View full details
$2,598.00
$2,598.00 - $2,598.00
$2,598.00
$2,104.00
$2,104.00 - $2,104.00
$2,104.00
Save 19% Save %
$300.31 - $300.31
$300.31
$300.31 - $300.31
$300.31

Aeromotive 02-14 2.0L Subaru WRX/07-14 STi Fuel Rails

Aeromotive
In stock

Aeromotive High Flow, Billet Fuel Rails combine 3,000 HP flow capabilities with ?bolt-on? ease of installation. Fits 2004-2006 Subaru 2.0L WRX?? Ra...

View full details
$300.31 - $300.31
$300.31
$300.31 - $300.31
$300.31
Save 20% Save %
$49.99
$49.99 - $49.99
$49.99
$39.89
$39.89 - $39.89
$39.89

Torque Solution Greddy Blow Off Valve Adapter w/ Plug: Subaru WRX 02-07 & 04-13 STI

Torque Solution
In stock

Torque Solution Greddy Blow Off Valve Adapter w/ Plug: Subaru WRX 02-07 & 04-13 STIThis Part Fits: Year Make Model Submodel 2002-2007 Subaru...

View full details
$49.99
$49.99 - $49.99
$49.99
$39.89
$39.89 - $39.89
$39.89
Save 20% Save %
Save 16% Save %
$277.77
$277.77 - $277.77
$277.77
$233.33
$233.33 - $233.33
$233.33

Torque Solution Turbo Inlet Hose Black: 02-07 Subaru WRX / 04-18 STI / 05-09 Legacy GT / 04-13 FTX

Torque Solution
Low stock

Torque Solution Turbo Inlet Hose Black: 02-07 Subaru WRX / 04-18 STI / 05-09 Legacy GT / 04-13 FTXThis Part Fits: Year Make Model Submodel 2004-...

View full details
$277.77
$277.77 - $277.77
$277.77
$233.33
$233.33 - $233.33
$233.33
Save 16% Save %
Save 16% Save %
$122.21
$122.21 - $122.21
$122.21
$102.66
$102.66 - $102.66
$102.66

Torque Solution Urethane Rear Endlinks: 04-07 Subaru STi/04-08 Forester

Torque Solution
In stock

Torque Solution Urethane Rear Endlinks: 04-07 Subaru STi/04-08 ForesterThis Part Fits: Year Make Model Submodel 2008 Subaru Forester Sports 2.5 ...

View full details
$122.21
$122.21 - $122.21
$122.21
$102.66
$102.66 - $102.66
$102.66
Save 16% Save %
$378.88 - $378.88
$378.88
$378.88 - $378.88
$378.88

Whiteline 02-07 Subaru WRX / 03-07 Impreza Non-Turbo / 04-07 STi Front Race Anti-Dive Caster Kit

Whiteline
Low stock

MOTORSPORT ONLY - Whiteline Anti Lift Kits are primarily designed to improve traction and cornering grip under power. By increasing static caster a...

View full details
$378.88 - $378.88
$378.88
$378.88 - $378.88
$378.88
$41.45 - $41.45
$41.45
$41.45 - $41.45
$41.45

Walbro Fuel Pump Kit for 02-07 Subaru WRX/04-07 Subaru WRX STi

Walbro
In stock

This Installation Kit (application specific) has the following Features and Benefits: Race-proven design for high-pressure high-flow engines, techn...

View full details
$41.45 - $41.45
$41.45
$41.45 - $41.45
$41.45
Save 16% Save %
$8.77
$8.77 - $8.77
$8.77
$7.37
$7.37 - $7.37
$7.37

Torque Solution Subaru 02-07 WRX / 04-21 STI TMIC Stud Kit

Torque Solution
In stock

Torque Solution Subaru 02-07 WRX / 04-21 STI TMIC Stud Kit

$8.77
$8.77 - $8.77
$8.77
$7.37
$7.37 - $7.37
$7.37
Save 16% Save %
Save 16% Save %
$55.54
$55.54 - $55.54
$55.54
$46.66
$46.66 - $46.66
$46.66

Torque Solution Greddy Blow Off Valve and Recirc Adapter: Subaru WRX 02-07 & 04-14 STI

Torque Solution
In stock

Torque Solution Greddy Blow Off Valve and Recirc Adapter: Subaru WRX 02-07 & 04-14 STIThis Part Fits: Year Make Model Submodel 2002-2007 Sub...

View full details
$55.54
$55.54 - $55.54
$55.54
$46.66
$46.66 - $46.66
$46.66
Save 16% Save %
Save 16% Save %
$42.21
$42.21 - $42.21
$42.21
$35.46
$35.46 - $35.46
$35.46

Torque Solution Greddy Blow Off Valve Adapter: Subaru WRX 02-07 & 04-12 STI

Torque Solution
In stock

Torque Solution Greddy Blow Off Valve Adapter: Subaru WRX 02-07 & 04-12 STIThis Part Fits: Year Make Model Submodel 2002-2007 Subaru Impreza...

View full details
$42.21
$42.21 - $42.21
$42.21
$35.46
$35.46 - $35.46
$35.46
Save 16% Save %
Save 16% Save %
$122.21
$122.21 - $122.21
$122.21
$102.66
$102.66 - $102.66
$102.66

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - Red

Torque Solution
Low stock

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - RedThis Part Fits: Year Make Model Submodel 2002-2007 Subaru Impreza W...

View full details
$122.21
$122.21 - $122.21
$122.21
$102.66
$102.66 - $102.66
$102.66
Save 16% Save %
Save 20% Save %
$122.21
$122.21 - $122.21
$122.21
$97.52
$97.52 - $97.52
$97.52

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - Blue

Torque Solution
In stock

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - BlueThis Part Fits: Year Make Model Submodel 2002-2007 Subaru Impreza ...

View full details
$122.21
$122.21 - $122.21
$122.21
$97.52
$97.52 - $97.52
$97.52
Save 20% Save %
Sold out
$122.21
$122.21 - $122.21
$122.21
$102.66
$102.66 - $102.66
$102.66

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - Black

Torque Solution
Out of stock

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - BlackThis Part Fits: Year Make Model Submodel 2002-2007 Subaru Impreza...

View full details
$122.21
$122.21 - $122.21
$122.21
$102.66
$102.66 - $102.66
$102.66
Sold out
Save 16% Save %
$277.77
$277.77 - $277.77
$277.77
$233.33
$233.33 - $233.33
$233.33

Torque Solution Turbo Inlet Hose Black: 02-07 Subaru WRX/04-18 STI/05-09 Legacy GT/04-13 FTX - Red

Torque Solution
Low stock

Torque Solution Turbo Inlet Hose Black: 02-07 Subaru WRX/04-18 STI/05-09 Legacy GT/04-13 FTX - RedThis Part Fits: Year Make Model Submodel 2004-...

View full details
$277.77
$277.77 - $277.77
$277.77
$233.33
$233.33 - $233.33
$233.33
Save 16% Save %
Save 16% Save %
$166.66
$166.66 - $166.66
$166.66
$139.99
$139.99 - $139.99
$139.99

Torque Solution Differential Brace: 02-07 Subaru WRX / 04-07 STI

Torque Solution
Low stock

Torque Solution Differential Brace: 02-07 Subaru WRX / 04-07 STIThis Part Fits: Year Make Model Submodel 2002-2007 Subaru Impreza WRX 2006-200...

View full details
$166.66
$166.66 - $166.66
$166.66
$139.99
$139.99 - $139.99
$139.99
Save 16% Save %
Save 16% Save %
$55.54
$55.54 - $55.54
$55.54
$46.66
$46.66 - $46.66
$46.66

Torque Solution 02-07 Subaru WRX/ 04-18 STI/ 04-08 FXT Map Sensor Adapter

Torque Solution
Low stock

Torque Solution 02-07 Subaru WRX/ 04-18 STI/ 04-08 FXT Map Sensor AdapterThis Part Fits: Year Make Model Submodel 2008 Subaru Forester Sports 2....

View full details
$55.54
$55.54 - $55.54
$55.54
$46.66
$46.66 - $46.66
$46.66
Save 16% Save %
Save 16% Save %
$33.32
$33.32 - $33.32
$33.32
$27.98
$27.98 - $27.98
$27.98

Torque Solution 02-07 Subaru WRX / 04-18 Subaru WRX STI Throttle Body Hose Coupler

Torque Solution
Low stock

Torque Solution 02-07 Subaru WRX / 04-18 Subaru WRX STI Throttle Body Hose CouplerThis Part Fits: Year Make Model Submodel 2008 Subaru Forester ...

View full details
$33.32
$33.32 - $33.32
$33.32
$27.98
$27.98 - $27.98
$27.98
Save 16% Save %
Save 25% Save %
$18.00
$18.00 - $18.00
$18.00
$13.50
$13.50 - $13.50
$13.50

PERRIN 04-07 Subaru STi / 06-07 WRX 22mm Rear Sway Bar Bushing

Perrin Performance
Low stock

PERRIN 04-07 Subaru STi / 06-07 WRX 22mm Rear Sway Bar Bushing

$18.00
$18.00 - $18.00
$18.00
$13.50
$13.50 - $13.50
$13.50
Save 25% Save %
Save 25% Save %
$333.00
$333.00 - $333.00
$333.00
$249.75
$249.75 - $249.75
$249.75

PERRIN 02-07 Subaru WRX/STi/Impreza / 04-08 Forester Front Strut Brace - Red

Perrin Performance
Low stock

PERRIN 02-07 Subaru WRX/STi/Impreza / 04-08 Forester Front Strut Brace - Red

$333.00
$333.00 - $333.00
$333.00
$249.75
$249.75 - $249.75
$249.75
Save 25% Save %
Save 25% Save %
$333.00
$333.00 - $333.00
$333.00
$249.75
$249.75 - $249.75
$249.75

PERRIN 02-07 Subaru WRX/STi/Impreza / 04-08 Forester Front Strut Brace - Hyper Pink

Perrin Performance
Low stock

PERRIN 02-07 Subaru WRX/STi/Impreza / 04-08 Forester Front Strut Brace - Hyper Pink

$333.00
$333.00 - $333.00
$333.00
$249.75
$249.75 - $249.75
$249.75
Save 25% Save %