ok guys i am ready to do twins but i cant figure out what to use i have a couple of turbos allready. Hx 35/40 62/71/1.15 ar 64/74/14 i seen some guys running hx 60 s and s 400 s but what size do you use and how big do you want to go on the exhast housings i dont want it to be to laggy. and anybody have so good twin pics the could send me for the pipes. thanks