If it's a stock cobra intake just get some port work done. Check out t-moss's website he has a whole bunch of comparos with the different intakes. I was surprised to see just how well the stock cobra intake did. I had the Edel performer, on my cobra with everything else being pretty stock and the only real difference I felt was in the 5 to 6000 rpm range. Now that my little engine spins to 6500 - 6800 I had to change to the rpm. I'll have dyno numbers when its complete. My combo that i'm building for the future is going to have a custom sheetmetal intake, this sucker is gonna be moving some major air.... I'm not letting too many details out just yet, all I ever say is A4 block, and now it looks like 2 different hairdryers, sequencially activated, one up to 5-10 lbs and the other should start at 10 lbs and I dont know where it will stop yet....... stay tuned.