hello,

 

I have a legacy model 2000 with ej25,150 HP, 4S auto,and 180000KM .

I want to increase the HP between 380 and 400 HP. Should I upgrade the same engine or should I swap it with another engine? If I was to upgrade it, do I have to upgrade the gearbox or swap as well. Please give me the best, the easeist, and the more convienient solution .

Whatever solution you may recommend, we'd like you to give us a website we can visit and buy from.

cobbtuning.com

 

They can do it, but it ain't cheap.

If you're going to pay someone to do the work, ship it to a known motorsport tuner (like ESX or someone) and tell them you want 350HP out of it.

 

I assume you've done some research into pistons, turbo or supercharging, engine & fuel management etc?