[rlevine18]

Which is the better exhaust? Just bought a 23 zl1 as my daily and I'm looking to make it a little louder. I like the idea of keeping the valves, but I have a feeling ill have the valves open 99% of the time so not sure which option to go with. I want to keep my warranty, so I don't need anyone telling me to keep the stock suitcase and buy headers. If anyone is selling either of these systems let me know as I'd prefer to buy used to save some money. Thanks