my vibrant performance intake doesnt make ANY noise

hey there i got a 2.2L sunfire 02 and i just got the vibrant short ram intake and the air filter it came with and i installed it and eveyrthing i love the performance improventment thats for sure but i do defeintely want some sound, but i cant hear it at all and i have a buddy who has another sunfire with the same vibrant intake and his does have a throttle noise too it the onlydifference is he has a K&N air filter on i have the perofrmance air fitler that came with the vibrant air intake could that be what makes the difference in noise or any idea why my intake is so silent? i also noticed when i first installed it and the air filter hanging to the side but still on it did make noise but perhaps a bit of the pipe was exposed and dirt air may have been getting in so anyawys its striaght on now and sealed with the metal clamp but i get no noise out of her any ideas? thanks. :)

hmm my intake actually was never performing really at all, i just now fiddled with it and now i can hear it (quite but its there) and notice a lot more performance improvement, i think its because my engine is i dunno werid i think there has been some dmaage to it for sum reason and it really gets crappy on me a lot of the time untill i just fiddle with it a bit and the life in her comes back lol i think it has something to do with someone didnt change the oil in her for 36000 km.. :( got an engine flush but who knows what else damage could have been done?