Ive had a 6.0l for many years and always kept it stock. I recently purchased a 2008 6.4l king ranch. It came tuned with an afe air intake and a 4in exhaust. the DPF is deleted. The truck did not come with a controller so it is stuck with a high tune. I took it to ford and they said they can not flash it with the DPF deleted. I do not mind having a tuner as long as I can control it. What are my options?