Dr. Performance Module

[Danny Grant]

Has anyone tried the Dr. Performance workhorse module or earlier modules on the Duramax? They do have a website with limited information available but with no testimonials from a Duramax user. A friend with an 03 Cummins has recommended the product saying there are impressive power and mileage gains when towing a large gooseneck horse rig like ours. Thanks Drifter99

[moondoggie]

Good Day!

I'd try the "Duramax 6600" forum... ;)

Blessings!

[rjschoolcraft]

Moondoggie's right. In fact, I'm moving this over there so that you get more exposure to your question. Good luck!

[Kennedy]

I haven't followed what the Dr.is selling as of late, but by the looks of what I saw it was pressure type. There's a pretty decent thread here about psi increases.