Nissan Silvia S12 N/A - where to get more HP?

[seeya]

I got my Nissan Silvia S12 [FJ20E] 2.0 N/A 1987. It has 150Hp, but i`m want to get the maximum from it! What kind of mods should i do to get from it about 250hp, but with no kind of tubos or superchargers!

 

[chevy9757]

Dude, its goingto be hard to get a hundred horsepower without a turbo or supercharger(i recommend turbo). I guess u can start with a cold air intake and free flowing exaust, maybe a chip or something. you might get about 50hp if ur lucky without a turbo.

 

[c420wizzle]

without adding forced induction to your ride, to get the gains you want I would suggest doing an engine swap.