I went from a 11’ 5.0 to a 10’ SHO! I just bought a 2010 SHO that already has a custom tune on it, but it’s stock otherwise. My question is, can I do a muffler and resonator delete without getting it re-tuned? Or would it be safer to just do the muffler delete without re-tuning it? I don’t even have it in my possession yet but I’m pumped. I can’t wait to drive something as quick as all the mustangs I’ve owned and not have to worry about my kids fitting or what the weather is doing!!!