Hello,

I own a Evo 9 for about 6 years now and finally have decided to make some upgrades. I did just put on 3" exhaust with no cats and box K&N airfilter. Since putting the exhaust on, I have noticed more leg time, like it hesitates little bit more now before turbo kicks in. I didnt think that i would need an ECU tune or reflash for it? If I need a reflash, which one should I download since many are listed and I am not sure which one will work for basic upgrades? Also, which ECU reflash should I download after I put on intake and MBC? Please advise all help is appreciated. Thank you again!