TomStratRT has a point! This is the set up I'm currently running, and it is probably more responsive than the single CAI I put together - that said I do have K&N's in the airbox and have run the pipes to sit right behind the grill.

It maybe a slightly more expensive option, depending how much you can source the engine cover for, but it's definately worth it - the cover looks pretty good too.

I can't recommend the K&N's enough though, I found the engine response improved dramatically from the stock filters in the MB box.

Whichever option you choose - happy modding

Regards

AR