Due to high demand, tuning turnaround is a minimum of 2 weeks. Current lead times on custom built turbos is ~1 month. Please plan accordingly. We thank you for your support of the finest parts available for the 6.5L Turbo diesel platform!

6.5L Turbo Diesel Handbook

Quadstar's Master Maintenance List

Posted by John Faddis on Nov 01, 2019

For new and returning owners. A peek into our brain at the checklist we follow for maintaining a healthy rig.

6.5L EFI Diagnostic Scanning for DIY Owners

Posted by John Faddis on Jan 13, 2019

Scan live diagnostic data from your OBDII 6.5L turbo diesel vehicle using our comprehensive how-to article on adding extended PIDs into the Torque app for Android devices.

Cooling System Upgrades

Posted by John Faddis on May 02, 2018

How to keep your 6.5L Diesel cool with a mix of knowledge and upgraded parts!