The Greatest Subaru WRX STI
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Time to read 3 min
Maximizing Performance: The Off The Line Performance GD SUBARU WRX STI 600 Package
If you're an enthusiast looking to push the limits of your Subaru WRX STI, Off The Line Performance has the ultimate solution: the OTL 600 Package. Designed for those who demand relentless power, precision, and reliability, this package transforms the already potent Subaru STI platform into a track-ready powerhouse.
Unleashing the Potential of the GD STI
The Off The Line Performance 600 Package is engineered for serious performance seekers. By carefully optimizing the EJ25 engine and supporting components, this package delivers a robust 600 horsepower, ensuring blistering acceleration and sustained high-performance capability. With a meticulous focus on engine durability, drivetrain enhancements, and chassis stability, the OTL 600 package is the ultimate setup for aggressive street driving and track domination.
Key Features of the GD STI 600 Package:
Forged Internal Components: Outfront Motorsports has been a long trusted partner for building our engines. The OTL 600 package is built with JE FSR pistons / Custom rods / upgraded valve train / close decked short block and much more.
Upgraded Turbo System: We are strong believers in the turbo kits made by ETS. The turbo charger that we entrust is the Garret G30-900 which will let your car live right at 600whp. The drivability of the G30 series turbo is unlike anything else.
Advanced Fuel System: ID 1700's are the preffered injector for this horsepower level. You will feel the OEM drivability with the capability of feeding your high horsepower EJ257.
ECU Tuning & Custom Calibration: Contact us for tuning!! We are able to tune in house on our dyno and you can come watch!
Impact on the GD STI Chassis
While horsepower gains are exciting, the true challenge of making a 600HP Subaru WRX STI controllable lies in chassis reinforcement and suspension tuning. The stock GD STI chassis, though robust, requires significant upgrades to handle the additional power effectively.
Chassis Enhancements:
Reinforced Subframe & Bracing: Increased rigidity reduces chassis flex and improves handling precision. We offer only the brands we trust and use on our own cars in house!
Performance Coilovers & Dampers: You are able to run stock suspension but tunable suspension is recommended! Shop from brands like HKS or KW. There are a lot of options out there to suit your needs.
Upgraded Mounts: Torque Solutions are highly recommended for the proper motor mount feel.
Why Choose the Off The Line Performance GD STI 600 Package?
Off The Line Performance has a proven track record in engineering high-performance Subaru builds. With a commitment to quality, precision, and innovation, this package is not just about raw horsepower but about delivering a balanced, high-performance driving experience that enhances both speed and control.
Whether you’re chasing lap times at the track or dominating the streets, the OTL 600 Package is designed to provide unparalleled performance while maintaining drivability. By addressing the entire vehicle - engine, drivetrain, chassis, and suspension - this package ensures that your Subaru STI performs at its peak in all conditions.
If you don't believe us, here are some questions we asked some of the owners of past 600 package builds:
Was it worth building the Ultimate Subaru WRX STI?
"Yes. I loved the car stock with my invidia cat back and I love it even more built . It sounds great and runs great. I love what grayson did with the engine bay colors. I gave him free reign and choices with a few minor requests and he delivered." - Chris B.
What is your favorite part of the OTL 600 package?
"My favorite part would have to be the turbo setup. Great drive-ability, and when you want the power it’s there. I love the turbo spool, waste gates, and blow off valve noises!" - Blake H.
What would you change about your 600 package?
"I don’t know if there’s really anything I would change. Plenty of power, great reliability, and it always brings a smile to my face." - Blake H.
Have you ever thought about turning the car up for more horsepower?
"More power... Of course who doesn't want to brag their car is xxxx. But I had it built for me. I do love the reactions of telling people it's 634hp and letting them see the artfully designed engine bay but 600 is just fine for what I want. I have this car to cruise and enjoy the road and all the engine sounds. Being in this car on the road for a nice drive is my fortress." - Chris B.
Get Ready to Redefine Performance
If you're serious about elevating your Subaru WRX STI to new performance heights, Off The Line Performance has the solution you need. Contact us today to learn more about the OTL 600 Package and experience the difference that precision engineering and expert craftsmanship can make in your build.