I talked to several diesel shops including A 2 Z diesel performance solutions and the guys at reliable diesel were by far the best. They are super friendly and willing to help. Even the owner is such a nice guy which may be the reason the whole office is friendly. Talked on the phone with the owner of A2Z and he acted like it was a chore to talk to me like he couldn't wait to get off the phone, super short and kinda rude. The owner here at reliable diesel was so friendly and helped me get my truck to pass emissions. Because of my positive experience with these guys with something so small and simple to get my truck pass emissions even though it was a small not highly profitable job for these guys, I will definitely come back to this place when I need other work done on my diesel truck which I can assure you I will need. Thanks guys! Keep doing what you do! See you soon I'm sure!