I'll bet you could rig some sort of a "lier"" switch on the boost pressure sensor. A switch that would alter the signal sent to the ecm, fooling it into thinking it was making more boost then it was.

Kind of a boost stick in reverse.

I have the same magnaflow too and love it, you can usually get a used one on ebay or cragislist. I wanted a valid warranty so I got it here. Magnaflow 16742. Also some of the forum sponsors usually have a sale going on. Either way its a great exhaust system, sounds great, and very easy to install.

How to make a smoke switch on a 04.5 Dmax

Now you can :jump:

Wait iv heard of idiots that remove the wastegate line so that no PSi is built up therefor the spooling and making alot of smoke.
Does that work?

ive had mine pop out, but the way i tuned it truck it wont over fuel if there isnt any air so it didnt go very fast

So basically there only loosing boost but not gaining any more air restriction?

what the smoke switch does is fool the map and maf sensor to think its getting alot of air when its not, so then it adds the correct ammount of fuel for the ammont of air its geting, but in reality its not its dumping tons of fuel when there is no air.

i wont to put a smoke switch on my 2004 lb7 dsuramax diesel but will it hurt any thing

do you have to tap into the map and maf sensors to get smoke on an 02 lb7 because i used the pic on the other page and didn't get any smoke with the switch.