I’ve got vibrant resonators and a muffler delete and I’m already getting some decent crackles. But my question is will I be able to shoot flames with a tune and stock cats. I know test pipes shoot flames but I don’t know if it’s required. My exhaust is already loud as heck with the vibrant and muffler delete setup and adding test pipes would make it unbearable. Sorry if I’m taking up space with a question that was already answered, but I couldn’t find anything answering this.

 

You might be able to do that after a tine but you're going to ruin the cats.