any info on a short shift kit?

i have a 2003 vibe gt and i love it. i have only a few mods done and im a little stuck and am having a hard time deciding what to do next. i have a k&n intake and a magnaflow exhaust and a upgraded clutch. im thinking about strut tower braces and lowering springs but as far as engine performance...

hey thanks alot for that heads up you probably just saved me lots of money. im 18 and an aspireing auto technician and any info on how to get that tensioner loos would be much aprieciated. i tried a couple time but couldnt figure it out.

i have an unorthodox racing crank pully and i have been unsuccesful installing it. i have taken it to a couple of shops with no succses. apperantly i need a speacial tool to loosin the tensioner. i asked a snap on tool guy and he had never heard of the tool...if there is any advice on where to go to...