Target Specs
- 450WHP
- Responsive turbo setup
- Reliable street tune
- Improved suspension and braking
- OEM+ appearance
Required Parts
Engine & Turbo
- COBB SF Intake
- Grimmspeed Boost Controller
- Blouch Dominator 1.5XTR Turbo
- ETS Front Mount Intercooler
- Killer B Oil Pickup
- IAG Air Oil Separator
- Invidia Downpipe
- Tomei Expreme Ti Exhaust
Fueling
- Injector Dynamics 1050x Injectors
- AEM 340 Fuel Pump
- Cobb Fuel Pressure Regulator Kit
- Flex Fuel Kit
Drivetrain
- ACT Heavy Duty Clutch Kit
- Kartboy Short Shifter
- Group N Transmission Mount
- Driveshaft Shop Axles
Suspension & Brakes
- Fortune Auto Coilovers
- Whiteline Sway Bars
- StopTech Big Brake Kit
- Michelin Pilot Sport 4S Tires
Step 1: Engine Reliability Mods
Before adding power, install the oil pickup and air oil separator. These are common reliability upgrades for the EJ257 platform and help prevent oil starvation issues during spirited driving.
Step 2: Turbo & Intake Installation
Install the upgraded turbo, intake system, and intercooler. Ensure all vacuum lines and couplers are properly secured to avoid boost leaks.
Step 3: Fuel System Upgrades
Replace the factory injectors and fuel pump. Install the flex fuel kit if planning to run E85 blends for additional horsepower and cooler combustion temps.
Step 4: Exhaust Setup
Install the downpipe and cat-back exhaust system. This significantly improves turbo response and exhaust flow while reducing backpressure.
Step 5: Suspension & Handling
Upgrade the suspension and sway bars to improve cornering stability. Dial in ride height and alignment settings depending on street or track use.
Recommended Alignment
- Front Camber: -2.2°
- Rear Camber: -1.8°
- Toe: Slight front toe out
Step 6: Dyno Tuning
A professional dyno tune is highly recommended after all modifications are installed.
Final Numbers
- 452WHP
- 398WTQ
- 24 PSI Peak Boost
- E60 Blend Tune
Driving Impressions
The car feels significantly sharper compared to stock. Turbo spool comes in aggressively around 3600RPM, while the AWD system keeps the power usable even during hard launches.
The suspension setup keeps body roll minimal without making the ride overly harsh for daily use.
Future Upgrades
- Built short block
- Rotated turbo kit
- Sequential transmission
- Carbon fiber aero package
- Roll cage for track events