2012 GMC Sierra 3500HD SLE Duramax – Deleted & Tuned – Runs Great

Selling my 2012 GMC Sierra 3500HD SLE Duramax with 178,209 miles. The truck is fully deleted and tuned for efficiency, making 450 hp / 900 lb-ft of torque. It runs excellent, starts easily, shifts great, and has been very reliable.

Fuel economy is outstanding for a one-ton: around 19 MPG mixed driving, and I’ve seen up to 21 MPG on highway trips at 50–60 mph. It tows extremely well and has always been solid and stable under load.

The tires have a lot of tread life left, and the truck is ready to work or drive as-is. Previous owner installed a front hitch receiver and a backup camera. I’m only selling because I upgraded to a brand-new HD truck and decided to consolidate vehicles.

Emissions note: I have the factory emissions components and they will go with the truck in case the buyer needs to return it to stock for emissions compliance.

Clean title in hand. Serious buyers only.