I have a V8 F-Type with VAP catless decat down pipes. After doing some searching on the forums and youtube, it looks like there is not much of a difference w/ or without the 200 cell cats, besides some restriction. Its just a little too droney and raspy.

We have a fabrication shop, and I was thinking of adding some inline resonators to cut down on the high frequency. What is the diameter of the pipe after the cats, going into the muffler on the V8?

Any idea where to get the shape / style capriso tips?