The sound is not for the weak at heart, especially WOT!!! The rumble at idle is awesome. There is no crackle or pop that Ive noticed with deceleration or from "wraping" the throttle like other brands have. Note: I do not have an after market fuel management computer installed on the bike. I talked to the R&D folks at Roadhouse and these are made to be tuned to run with out the extra computer. However, installing one will unleash even more beast. So far I feel that these are the best going thats out there. No offense to those of you who are running another brand. WE all have different tastes....these happen to be mine. The baffles are removable....honestly.....by doing so you will have shorty straigh drags!!!