Billy Boat or Borla?
 

What would be a better setup that Corsa and I understand the drone issue has been fixed with the other options.

I would think borla would be the better brand....but I have corsa

Mufflers
 

I feel Billy Boat has a superior looking, sounding and built product. I think 1997 when I think Borla My two pennies for what it's worth

http://www.zr1specialist.com/HAT%20W...20vs%20b&b.htm

interesting article you may want to read from Marc Haibeck regarding exhaust .

I'm not sure when B&B updated with the fusion model but in order to handle drone maybe it's more restrictive a system well. I will state that Corsa has changed their setup as well as the earlier Corsa model the model without the stamped logo on the tips are a whole lot quieter than the current Corsa model when you accelerate. GC