Pontaic firebird intake and exhaust?

what cold air intake should i put on my 1999 fierbird, k&n is to expensive the want close to $400. is there a cheaper one? please provide links. also i want an SLP Loudmouth exhaust, would sound like this a href="http://www.youtube.com/watch?v=I_BjusLQSSo," rel="nofollow"http://www.youtube.com/watch?v=I_BjusLQS…/a any one know where i can find it cheaper please provide links thnks