hey..i dunno about yall but im pretty familiar with the LS1's...well there are a few free mods that u can do for a horse or 2..has anybody heard about or built..a Ram air for the 4.6s? I was looking at the March Ram air..and it looks like a peice of air duct coming from the bottom..i guess the real question would be..how would u make the peice that sits on top of the engine..has anybody ever done this before? It cant be that hard..or can it? Feel free to input--Trey