I just order a J-Spec engine from Japan. Stock the engine has a 175 hp power I wanted to know where is a good place to order parts for the engine. It comes with a the J-Spec tranny. I want to get atleast 300hp out of the engine. Help

the b16a1 or b16a2 . and its not 175hp b16a1 160 and b16a2 170

the b16a(88-91) first gen and the b16a2(99-00 si) are 160 hp and the b16a sir2(92-95) is 170(this is more than likely what you got).
if you wanna get at least 300hp from that motor you will need to go turbo or a really nice supercharger setup or NA setup with nitrous.

Thanx for the information....I'm gonna get started ASAP, I have the Nitrous being installed as we speak. I wanna to get that C-Yeah speed going. I was gonna have a stage 2 clutch put i also. and i was going to reduce some weight for more top end also...Holla back.....Tech-Boy 4 Life.