I took the all the resonators off my 99 2.2 stock intake today and topped it off with a ractive heatsheild air filter. sounds great and adds ;ots of horeses!!! I took the really long resonator that hangs down and superglued a round peice of plastic to cover the hole and i took the insert out of the box that connects to the throttle body. can't beleive how much power that added. I'll post some pics when I get some. I am still gonna get a aftermarket one when I get the $$$$$!!