i'm sure there's going to be some negative feedback how i peiced and cut the piping to ni.....wait..... "afro engineer" my injen cai system and the sds piping. but i works, and quite well at that. I asked earlier before i purchased the kit if it could be done and nobody seemed to know. now i can comfirm. you can make your sds system into a suck through system by modifying a cai. here's the pics!