Try the different web sites and many will have sound demos. I narrowed down to Vance and Hines and Rinehart and ended up with Rinehart 4”. Very pleased. My brother went through all of that and bought Bassani. He is happy with his choice. Get what you like. Slipped are a fairly simple install in your garage. One thing that you may want to check: Rinehart didn’t require retuning. The Bassanis are backfiring a bit, which the dealer wants to charge about $400 to retune.