i am sitting at home and kinda bored and was wondering if it would sound good if i gutted my cats with stock exhaust except the flowmaster muffler. Also would it hurt my performance much if i did this before i had a programmer or simulators for the back sensors. I can handle having the check engine light on until i get something.thanks for any suggestions.

 

Sound mostly the same, and most people don't bother gutting cats it's debated that they even lose power.

 

gut cats will need 02 sims

 

did that hated it very loud in ur car couldnt even talk on the phone with out people saying how loud it was and smell the exhaust bad!! couldnt tell perf gain till i did the ls1 edit