Take off the turbo

 

Im with these guys.. you arent going to smoke like a cummins without alot of work.. The duramax is a well tuned truck and makes just as much power with little to no smoke when done properly.

That being said.. anything that adds fuel at a low enough RPM to prevent your turbo from spooling up, will create black smoke.

 

My duramax will smoke like a freight train with the juice set on hot, of course elevation may be part of the problem. I agree smoke just looks dumb coming from a duramax and would rather not have it.

 

Put a plastic bag over your air filter

 

get a retro james bond smoke kit! Than you can loose all the bad guys too!

 

do that trick the cummins guys do with the maf sensor. smoke switch i think its called. but beware it will kill your turbo especially those VGT vanes with all the raw fuel soot going over them. not good for it.

 

pull off a intercooler hose

 

Or yet again Buy a Cummins... easy Fix.. Lol...
Ur Truck puts out Clean power less smoke means that ur turning more fuel into power instead of dumping it... i like smoke but your loseing money and power with it

 

dont work

 

it kinda works but not as well as the cummins

Smoke Switch on a LBZ Duramax