Has anyone tryed to cut off just the muffler on a lighting and put in strait pipes. If so how did it sound and how did it effect the power and torque.

 

Welcome !! If you post this in the "Lightning" section you will get a better response. I've seen them address this topic several times there. You can also use the search function to find past opinions. Yes, they've done it. Yes, it's loud, but could be louder with cat modifications. Performance is debated and some report rapping down/popping.