So my engine threw a rod last week. I took it to the dealership, I had a blow off valve on the car. I took it off before I took it in, but left a newer hose that came with the BOV. They said because I changed the hose, they suspect I put on a boost controller and they won't cover it. Thats bullsh*t. They sent it up to Mazda reps somewhere else for the decision, is there any argueing once it has went up that far? Any suggestions?