Product Overview:
Our v400 power package is the ideal second step in our upgrade path for the Evo IX.  The free flowing Down-Pipe and High Flow Catalyst greatly reduces performance-robbing exhaust back-pressure.

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 substantial, dyno-proven 120-130 flywheel horsepower gain over the factory rating 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.

 

◄PRIOR STAGE

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 v400 package also includes an easy-to-install passive boost solenoid emulator which greatly improves boost response and consistency. Please specify 91 or 93 octane applications.