This question has been asked far too often so let's talk about it. I put together a few lists for how to make X amount of horsepower for your Subaru WRX/STI. Please note that there are plenty of ways to make horsepower however this is the list I have put together for everyone. Every tuner will tune a car differently as well but this list should get you close to your goals if not exceed them.

Smeedia Merch: [ Ссылка ]
Smeedia Discord Server: [ Ссылка ]

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300WHP
Cobb Accessport
Cobb SF Intake W/Box
Cobb 3 Port Boost Controller
Cobb Catted Downpipe
Whatever Catback You Want
Bonus: IAG Air Oil Separator
Exception *2015+ STI ID1050

350WHP
Cobb Accessport
Cobb SF Intake W/Box
Cobb 3 Port Boost Controller
Cobb Catted Downpipe
Whatever Catback You Want
AEM340LPH Fuel Pump
ID1050 Injectors
Cobb Fuel Stumble Fix Kit
Cobb 20G Turbo
Grimmspeed Up pipe (Non EWG)
Perrin 2.4” Turbo Inlet
NGK 2309 Spark Plugs
Bonus: IAG Air Oil Separator / Koyo Radiator

400WHP
*If Non Type RA Engines this is where i would advise you stop*
*This Will more than likely be where your stock clutch starts to slip*
Cobb Accessport
Cobb SF Intake W/Box
Cobb 3 Port Boost Controller
Cobb Catted Downpipe
Whatever Catback You Want
AEM340LPH Fuel Pump
Grimmspeed Up pipe (Non EWG)
Perrin 2.4” Turbo Inlet
NGK 2309 Spark Plugs
ID1050 Injectors (Pump Gas)
***ID1300s Flex Fuel***
***Cobb Flex Fuel Sensor (If Going Flex)***
IAG TGV Deletes
IAG Fuel Rails
DIY -6 Fuel line
Aeromotive A100 Fuel pressure regulator
FP Blue Turbo
ETS 3” Front Mount Intercooler
Killer B Holy Exhaust Manifold/ ETS Exhaust Manifold
Iwire Hybrid Maf/SD conversion
If applicable Secondary Air Pump delete
ACT HDSS Clutch W/ Stock resurfaced flywheel
Bonus: IAG Air Oil Separator / Koyo Radiator / Killer B Oil Pan Kit

450WHP
*Non Type RA Engines Consider a Built short block*
Cobb Accessport
Cobb SF Intake W/Box
Cobb 3 Port Boost Controller
Cobb Catted Downpipe
Whatever Catback You Want
AEM340LPH Fuel Pump
Perrin 2.4” Turbo Inlet
NGK 2309 Spark Plugs
***ID1300s Flex Fuel/pump gas***
***Cobb Flex Fuel Sensor (If Going Flex)***
** If Going Flex consider a Dual Pump setup or a single 450LPH pump
IAG TGV Deletes
IAG Fuel Rails
DIY -6 Fuel line
Aeromotive A100 Fuel pressure regulator
ETS 3.5” Front Mount Intercooler
Killer B Holy Exhaust Manifold/ ETS Exhaust Manifold
Iwire Hybrid Maf/SD conversion
ACT HDSS Clutch W/ Stock resurfaced flywheel
If applicable Secondary Air Pump delete
FP Green Turbo Charger
PLM Up Pipe with 38mm EWG Flange
Tial 38mm EWG
Cobb Tuning Bypass Valve
Bonus: IAG Air Oil Separator / Koyo Radiator / Killer B Oil Pan Kit

500WHP
*Non Type RA Engines Consider a Built short block*
Cobb Accessport
Cobb SF Intake W/Box
Cobb 3 Port Boost Controller
Cobb Catted Downpipe
Whatever Catback You Want
AEM340LPH Fuel Pump
NGK 2309 Spark Plugs
***ID1300s Flex Fuel/pump gas*** (IDC will be around 85%)
***Cobb Flex Fuel Sensor (If Going Flex)***
IAG Fuel Rails
DIY -6 Fuel line
Aeromotive A100 Fuel pressure regulator
ETS 3.5” Front Mount Intercooler
Killer B Holy Exhaust Manifold/ ETS Exhaust Manifold
If applicable Secondary Air Pump delete
Iwire Hybrid Maf/SD conversion
ACT HDSS Clutch W/ Stock resurfaced flywheel
PLM Up Pipe with 38mm EWG Flange
Tial 38mm EWG
Cobb Tuning Bypass Valve
FP Black Turbo Charger
FP 3.3” Turbo Inlet
AMS Intake Manifold
Radium Dual Fuel Pump Hanger
X2 AEM 340LPH Pumps
IWire Hardwire Kit
Bonus: IAG Air Oil Separator / Koyo Radiator / Killer B Oil Pan Kit / Fluidamper Crank Pulley

Tools For The Garage:
Special Oil Funnel: [ Ссылка ]
Coolant Burping Tank: [ Ссылка ]
3/8" Socket Seet: [ Ссылка ]
1/4" Socket Set: [ Ссылка ]
3/8" Impact Gun: [ Ссылка ]
3/8" Ratcheting Wrench: [ Ссылка ]
Batteries for those electric tools: [ Ссылка ]
Floor Jack: [ Ссылка ]
Jack Stands: [ Ссылка ]
Gucci Screw Driver Set: [ Ссылка ]
Hook and Pick Set: [ Ссылка ]


Audio:
Chill - Sakura
September Rain - Yme Fresh
Slow Down - LiQWD

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