Challenger SRT Hellcat
LTH headers/cat less pipe would bring little power but gain vs money is not there on stock setup. Plus you need to tune those so you would need unlock pcm etcI missed that the first time. I'm sorry about that. I should have read your previous post again before my last post. Can you forgive me please?
On a stock Hellcat, wouldn't there be a much greater horsepower increase by adding bigger long tube headers & cat-less mid-pipe versus upgrading the cat-back exhaust system with 3" pipe? In other words, which mod would definitely add more power: upgrading to long tube headers & cat-less midpipe or upgrading the cat-back exhaust system?