i’m looking to push my evo x close to 400hp. mods i have right now is an invidia n1 catback exhaust, blitz intake and GFB decepter2 bov. i’m gonna get it dyno tuned and i don’t have access to e85. what other supporting mods is a must before i get it tuned? looking for the cheapest and safest path to get those numbers. any help appreciated thanks

 

I’ve been a bit out of the game for a while so take this with a grain of salt

I would update the boost control solenoid to a 3 port. You will also want a front mount intercooler and IC piping. You might be close to needing injectors and a fuel pump.

Most importantly, have it tuned by someone familiar with the MR transmission. I had my MR tuned by someone who wasn’t familiar with it which might have lead to it failing.

 

Agreed ^ Your tuner will be critical.. Definitely need a 3-port, a FMIC will help as well, high-flow cat or test pipe for sure, I don't think you will need any IC piping tho, the stock piping is capable, the upper pipe seems to only help with throttle response.

Downloading and flashing EvoScan's increased pressure mod is also a must, at that goal I would recommend the 15% (highest), if stock clutches.

350 will be easily doable with your current mods and addition of a 3-port boost controller.