Chevy and GMC Duramax Diesel Forum - View Single Post

jdhogg726 · 05-08-2008, 04:09 PM

i have an 07.5 with 4 inch turbo back programmed with efi live. got 23000 miles but only 1500 with upgrades. i averaged 17.2 before and 21.8 now. really impressed in the difference the upgrades made.

05-08-2008, 04:09 PM	eBay Motors #3 (permalink)
jdhogg726 Junior Member Join Date: May 2008 Location: maine Posts: 10	i have an 07.5 with 4 inch turbo back programmed with efi live. got 23000 miles but only 1500 with upgrades. i averaged 17.2 before and 21.8 now. really impressed in the difference the upgrades made.