has anyone ever used this company? what do you think of it?

http://www.deltaforcetuning.com/category-s/1.htm

 

Just stay away please

 

I had it for my powerstroke and it was a joke. I still have the tuning and i can try it on my truck but i am going to leave it stock just because i never liked it at all.

 

I had it on my 2000 Lightning and absolutly loved it!!! The adjustability was amazing and loved that I could adjust it at the track for track conditions. Prior to that multiple tuners couldnt get the air fuel right. First try it was almost perfect.