Product Overview:
Our v390 power package represents the most power you can safely achieve while running the factory turbocharger. It is designed for those who demand nothing less than maximum performance. As with our v360 package, the factory muffled exhaust note will be replaced by a deep, yet mellow, growl under hard acceleration. During cruise conditions, the exhaust note is drone-free and pleasant sounding.

Coupled with careful recalibration of the factory fuel and ignition advance tables, as well as revised rev and boost limits, we’re able to achieve a massive, dyno-proven 120-130 flywheel horsepower gain on an otherwise stock Lancer Evolution. As with all our power packages, this gain is safe and has proven itself to be cable of withstanding the rigors of heavy-duty competition use-- something few others can honestly claim.

As with all of our XFlash-based power packages, you will need to mail (or bring) your ECU to our Danville, CA facilities for the re-flashing of its ROM file. For removal and reinstallation directions, click here. If you chose to mail it to us, we can usually mail it back to you the same day we receive it, limiting your downtime to a matter of 2-3 days. If you bring it to us, you can even leave the ECU in your car since we can re-flash it through your OBD-II diagnostic port. This takes a matter of minutes and requires virtually no downtime of your car. In additional to ECU re-flash, our v360 package also includes an easy-to-install passive boost solenoid emulator which greatly improves boost response and consistency. Please specify 91, 93 or 94 octane applications.

◄PRIOR STAGE

Power-Adding Options:
Test Pipe
Adding our cat-less Test Pipe to the v390 package will greatly improve boost response while adding approximately 15 wheel hp to the system. Please check your local emissions regulations for compliance.
Price: $125 (for off road use only)