I've been using the PPE Standard for a year now with 285's, downpipe, intake, and straight pipe exhaust, averaging 19 MPG on the 120 HP tune. I have the LLY motor. That is an average, not just highway. Towing two race cars on a trailer, I averaged 16 MPG highway.
My only gripe is that it doesn't feel that much faster than stock. I've played with different stages and back to stock and there wasn't too too much of a difference other than slightly quicker turbo spool, and quick downshifts.
Any recommendations to get a bit more power without killing the mileage guys?
2004.5 Chevrolet 2500HD Duramax 2X4 LLY, Crew Cab
Graphite Metallic, 91K miles. LT package. Billet Grill.
Air Raid Intake, Banks turbo back exhaust. PPE programmer.
285\75\16 tires with Hula triple chrome wheels.