have to say dont know whether they're all they're cracked up to be. For a start it fuucking broke in transit-although it was packaged really well the plastic scoop has snapped away from the tube that the filter attatches to-had to fuckin bodge it and use electrical tape to tape it back together which im not happy about. It sounds nice but it seems to not have that imediate feeling of acceleration that the origional air box gives you. Dont know whether to just buy a k&n filter element for my stanard air box, try a bmc, or wack out on the procomp