sorry.. u gonna hafta spend thousands to get more HP... the intake/headers/exhaust combo will prally come out to $1000 already... that I/H/E will get u sumwhere between 15-25 added ponies (i think... correct me if im wrong)... if u spend right... u should be able to get the i/h/e for about $600-750 total... try lookin in
GroupBuyCenter i got my intake there for a decent price... but most people here will tell u that the cheapest way to get the most HP for the buck is turbo... or a new engine where u can build on it... good luck