As the title says, I only used it one day - frankly, the sound wasn't for me. It went in, and it went out, the filter element isn't even dirty :p

Either way I'm selling it for $200.00 (retails for $279.00), I would prefer a local pick up, and I'll even help you install it. I'm pretty sure it'll fit in '02 & '03 WRXs, but I know it will fit on '04 & '05 WRXs.

So to sumarize:

$200.00 for a K&N Typhoon Filter used 1 day, prefer a local pick up.

BTW, I also have used Bosal Shorty DP for sale - 2.5" diameter, Stainless Steel, divorced waste gate, catless, very good design, and light weight: $100.00

pm if interested.