If something happens to that engine or tranny that warranty means squat anyway. Ford doesnt allow work to be done to Cobra engines or the T-56. They send out an SVT rep when one of these parts fails to check for mods. Unless something has changed.
Id keep the extended warranty for the rest of the car and keep the mods. Go have it dynoed with a/f check and go from there.
I had warranty work done when i had one. I had mods at the time but the work done had nothing to do with the engine or tranny. Im on good terms with my dealer. They told me do what ever I wanted to it but if the engine goes they cant help me. Heck they all used to come out and want to know what it was running now. 1/4 mile. LOL
Id keep the extended warranty for the rest of the car and keep the mods. Go have it dynoed with a/f check and go from there.
I had warranty work done when i had one. I had mods at the time but the work done had nothing to do with the engine or tranny. Im on good terms with my dealer. They told me do what ever I wanted to it but if the engine goes they cant help me. Heck they all used to come out and want to know what it was running now. 1/4 mile. LOL