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!

Contact us

Quadstar Tuning LLC
Email is our preferred method of contact for general questions. Please double check your email before submitting the form below.
NEW policy as of 11/2020 - If you would like to request a call, please let us know your time zone and availability so a rep can contact you.  We will schedule calls in the order requests are received.