[futureal33]

I haven't got the Alta, but just for something to do last night I disconnected the stock air box and put on an old K&N cone filter to see what it sounded like and if it made an difference. I am not exaggerating when I say that the whole job (including recording the sound it made on my mobile phone!!!) took less than 10 minutes and all I needed was a torx screwdriver (for the airbox) and a flat headed screwdriver for the jubilee clip. I understand that alta has a extra piece of silicone hose,but again this is literally a case of sliding the silicone hose bend into the stock air pipe and then tightening a jubilee clip over both ends - should take about 5 seconds max! This really is an easy mod and can be put back to original in less than 10minutes or if you have done it before, about 2 minutes!