I believe back in march there was a thread about Factech and BDS if you want more info copy and paste this ----> http://www.duramaxforum.com/.../2046...ion-lifts.html
__________________  2008 GMC Black crew cab slt
BD Manifold , Magnaflo cat back with muffler delete, afe stage 2 dry kit , edge juice with attitude,front leveled,285 75 17 nitto grappler, AIR lift<----all old stuff Now UNDER CONSTRUCTION 
2005 bmw 330xi Loaded turbo 
1987 Mustang gt sbf 9:50's @ 145 1.33 60' all motor still tagged threw the mufflers but crappy gas mileage  | 
Linear Mode
