pulley, TWE headers.
Oh, and intake too.
Originally Posted by Arctic Penguin
you will not be able to add more than 20-25whp at the MOST unless you spend as much or more than you spent for the car
na subarus making more than 200whp are RARE and VERY costly
There are at least 5 guys in the N/A forum in the 200WHP range. And it definitely doesn't take another $11k to get to +30HP.
$500 for cams, $1000 for the TWE headers, (OBX EL is cheaper, IF you can find them), $200-ish for the intake (unless you go the homemade route), toss in another $500 for a high-flow cat. That $2000 (tops) will most likely put you over +20hp.
Even better, though, is to stop listening to the turbo-weenies and stay lag-free