Save your money, as much as I love Perrin's stuff, it doesn't change the fact that intakes are rarely going to net you much horsepower if any. A lot of companies show significant gains, but don't believe every dyno you see (though if I will believe any comapny's dyno, it would be Perrin). Spend your money elsewhere for better return on investment.
My vote goes to saving up for a tune and exhaust.