i have a completely stock 02' Si.

what is the most efficient upgrade for the money?

what is the healthiest upgrade?

thanks

 

Well, for the money, buying a cold air intake... then maybe a new exhaust... headers, etc.

 

i know that.... what else? besides intake, exhaust, chip.

btw do the ntakes really mater on like ebay? i havent really seen a real leagit one. the all apear to be the short-ram type. idk im new to the k-series. ihave had a B and D series engine...but this new K series stuff is wierd

 

The best upgrade for your money is turbo. I/H/E is suprisingly hp-efficient on K series from what I've heard but for about $500 more you could probably triple the power output over I/H/E.

 

ok you said SI. go get a turbo setup. stock internals youll put down 300hp easy. just upgrade to RSX type S injectors. and of course Kpro! lucky bastardo...
wait BTW are you in canada or the US? cause if you say canada disregard the above...

 

his post is about a ep3. wrong forum buddy. personally id go boost or go home. those k20a3's have low *** compression. a jackson s/c or a greddy bolt on turbo kit would be sick on your ep3