Ok i was playing around and found this picture on Pineapple Racing website, it is a 13B-REW that is all i no.

I just wanted to no what the hell kind out gains does this do, I dont need nor want one just wondering whats going on.

 

that photo surfaced in a wicked thread over at ausrotary recently and if i recall correctly, the two extra plugs are not functioning for spark purposes, just some sort of ground.