u/Sicknars

I’m looking to upgrade my exhaust setup to a skunk 2 alpha headers and the megapower rr. I did a quick google search to see if I need anything else and they are telling me that it’s required to have a tune or else it will run like shit. To anyone who has the same exhaust setup or did exhaust in the past, did you guys tune after and if you didn’t did you notice a huge difference in how the car ran wth no tune? Pls lmk thanks!!!