well... if you move the vtec from what the honda engineers have placed at a lil over 5000rpm... your car will not build enough oil pressure to SAFELY engage vtec... do you know what that does? it can actually will (sounds F&F) fry your piston rings.... blow your headgasket.. etc.... it's a very acurate useful tool for everything else.. and looks really nice...
o and the exhaust choice is VERY sweet...