I have borla exhaust on my LT1 corvette. How can i make it louder and still pass

[Arrowheadfan]

emitions? I just want to make my car really loud, and still pass emitions

 

[Bubba B]

Flowmaster race mufflers are loud.

 

[magan]

2 chamber flowmasters with a bassani x pipe no cat's. The borla exhaust is made to be quite and still have performance but flows are made to be loud and have great performance. If you want it really really loud add some headers and an electric cut out from summit it will open the pipe up right at the header (only when you want though) thats the loudest it'll get