My 99 gsr the cat is starting to get clogged. Alot of people are telling me to just bang it out and use it. But im leaning towards a test pipe. I had just an ebay one on a previous car and it was too loud. And the cops around here are strict and plus it was just too much.

Anyone can recommend a decent part to replace it? I have a dc header and a greddy sp2 exhaust if that matters.

Any help is welcomed. Thanks