i am in the prosess of designing an "inexpensive" set of hardpipes that will use the stock bpv and stock intake system. so, yes you will be able to use the injen and other intakes that work with the stock ic pipes. these pipes will be made of mild steel, and before you say it, iknow, aluminum and ss is better. they are also more money. i am not saying that these will be the "best" but they will give the people that dont have the $$ for the expensive pipes a choice to get them. i will be offering them i a few differnt colors (powdercoated) most likely blue, silver and black. they will be also available "raw", non-coated, so you can send them out to be coated how ever you want. estimated piceing as of now is $250 colored and $200 raw..i will keep this thread updated as i get parts done...