Installed my V2 1320 header and exhaust Friday. I had some time to do some testing today on the exhaust and honestly I'm not impressed. Build quality looks good but sound is not good by any stretch. I tried all three baffles and ended up with the middle sized one. It doesn't have as bad of a drone that the largest one does which made it the best choice. However, often it sounds like a Ford Ranger with a glasspack.
Changing out the baffles is not fun. It's not necessarily difficult as it is only two allen bolts however they are difficult to get to if the vehicle isn't on a lift. The real problem is that the muffler tip you put on lastly over the baffle is cut to a razor sharp edge. So when you're trying to get these two bolts out and back in you are praying it doesn't slit your wrist and I mean that very honestly.
This isn't meant to be a bad review of 1320 as I love the headers. I'm just not sure anyone can make this motor sound decent...