Why are diagnostics sooo important when Remapping / Tuning anything???

Simon explains in great detail why it is a MUST to carry out basic diagnostics both before and after tuning a vehicle. Finding out if a vehicle already has an underlined issue before tuning it, can help save you a lot of time and aggravation. Always fix the issue first before applying any tune. Check out the links here for more information and to start your remapping journey today: Get our dealer brochure - https://tiny.cc/maxtune Visit our Website - https://www.max-tune.com See what our personal OBD device is - https://www.truetune.info