Hey guys, I’ve got a 2005 6.0 with 215k that I bought a couple months ago. The previous owner was a woman that used it to tow her light weight camper a couple of times a year. The truck is studded, deleted, and has a coolant filtration system, I also think that the blue spring mod has been done due to there being a zip tie on the fuel line to keep the fastener from sliding down the fuel line. She told me that there was a tune on the truck for reliability. My question is, do you guys think that it is safe/smart for me to buy some custom tunes to put on the truck? If so, what company would you recommend?