Quadstar Tuning will be CLOSED from July 10th to July 26th, 2020. Any emails, messages or orders placed during this time will be answered and processed beginning July 27th. During this time, we will be restructuring to serve you better and some product listings may change. We'll be coming back strong with multiple new product releases. As always, thank you for your support!!!


Custom Tuning

Custom tuning and tuners for your 6.5L turbo diesel. All work is performed in-house and tailored to your needs!