440HP Archives

Diesel News

Diesel News 10-21-19

Ride of the Week Cummins Goes Rounds at No Mercy 10 The Hardway Performance crew was at it again over the weekend of October 17-20, […]

DW STAFF
October 21, 2019
5 minutes read

Diesel Tech / How-To

Backyard Power Mods: High-Mileage Duramax DIY for Under $500

It’s understandable that with today’s newer truck prices, more owners are opting to hang onto their five- to 10-year-old trucks, even when the mileage starts […]

DW STAFF
June 05, 2016
16 minutes read

Chevy
FEATURES

The 11-Second Duramax Known as Goldmax

Fulfilling The Need For Speed Your pulse quickens as you break the beams and light the staging bulbs, the smell of burnt rubber wafts through […]

Kyle Tobin
January 07, 2026
8 minutes read

Cover Story
Cummins

Turbo Upgrade & Fuel System Protection for the 6.7L Power Stroke

’15 Turbo Install & Preventing All-Out Fuel System Failure From the 5.9L and 6.7L in the Cummins camp to every RPO code Duramax ever produced, […]

Mike McGlothlin
November 19, 2025
13 minutes read

Tag: 440HP

Project OBSessed

Lone Star Throwdown

Local Studebaker Drivers Club Chapter Hosting The Annual Movie Nite

NTEA Work Truck Week

Diesel News 10-21-19

Backyard Power Mods: High-Mileage Duramax DIY for Under $500

The 11-Second Duramax Known as Goldmax

Turbo Upgrade & Fuel System Protection for the 6.7L Power Stroke