please thats not a dual pipe a real dual piped CAI u'd need a v8 or something higher than that for 2 throttle bodies.. like in a BMW they can have 2 CAI... i think that one in the pic would suck up even more heat than a short ram.. a 2peice CAI just makes installing easier, allows for a Bypass to be added and is cheaper to ship.. the gains are about the same as a 1peice really depends on manufactor