It's difficult to tell in this video but how much louder are the new pipes from the old (non cored stock). I am looking for either underbike or underseat exhaust but don't want to have neighbors complaining about noise. Would you think that these are louder/quiter than boomtubes?
The new pipes are LOUD. I mean REALLY LOUD. I haven't heard the boomtubes but I can say the underseat exhaust is nearly as loud as without mufflers. If we did a scale of 1-10 where 1 is stock and 10 is straight pipes I'd have to say that the underseat is about 8.5 with the db killers in and just over 9 with it out. Cored was about a 4.5 or so.