This document provides a comprehensive overview of the tuning process for vehicles equipped with OBD1 and OBD2 systems. Understanding the differences between these two systems is crucial for selecting the appropriate tuning method for your vehicle.

When considering a tune for your vehicle, the first step is to determine whether your vehicle is equipped with an OBD1 (1994-1995) or OBD2 (1996 and newer) system.

If your vehicle is OBD1, the tuning process is relatively straightforward. You can purchase a tune or a multi-tuner, and you will receive a tune specification sheet via email. After filling out the sheet, you can expect to receive a chip in the mail within approximately two weeks.

The tuning process for OBD2 vehicles is slightly more complex. You will need to decide whether you want to pay a core charge or send your PCM (Powertrain Control Module) in for tuning.

• If you choose to pay the core charge, you can place your order and will receive an OBD2 specification sheet via email. This sheet must be filled out to provide us with your vehicle's specifications, intended use, and desired level of tune. Please note that the lead time for your tune begins once you submit the completed spec sheet, not when you place the order. Therefore, if it takes you a week to fill out the sheet, your tune will be processed two weeks from that date.

• If you opt to send your PCM in for tuning, you will also receive a tune specification sheet after completing your purchase. However, the lead time does not begin until we have your ECU in hand for tuning. To minimize downtime, we recommend sending your PCM to us as soon as possible. Additionally, we can notify you once your tune file is complete, allowing you to send in your PCM for a quicker turnaround. This way, we can erase the existing data, load the new tune file, test it, and typically return it to you within one to two days if everything goes as planned.