The fact that's missing from all the reviews of aftermarket exhaust systems is the noise figure.
Not the power, the weight, how cool they look, nor what they sound like but how many dB's they make.
I run LSR here in England, I set a P.PB.1000 standing-mile record last year and a kilo record this year. We cannot run a bike if it makes more than 106dB at 4,000rpm on a static test. That's it, no argument, you're not running !!!
There are a few owners here fitting slash-cut systems or similar to H2's. You can never open these bike's right up on the road and yet they will never be able to run them at a track. They run the risk of being stopped for an illegal silencer and they get us all a bad name with other road users and legislators. Yet people still buy and fit these systems. Maybe someone could explain.
The person who produces a system for the H2 which does away with the cat, looks like the H2R and isn't too noisy will corner the market and get my business.
Good questions, I'll try.... Cliche but when referring to sound levels, different strokes for different folks right. And usually people that are replacing the oem exhaust w/ a cat less exhaust want more performance but also much more sound.
I not only "open up my bike on the street", I do it all the time. I also have access to a closed AF runway & the tracks I've been to in the Northeast USA have never had an issue with the sound level of my Brocks full exhaust. Where I live my bike is loud but there's a lot of people running louder w/ no issues from law enforcement. I've been riding 32 years straight, most of that time on bikes as loud if not louder than my H2 and have never gotten so much as a warning or pulled over because of a loud exhaust, cat-less exhausts w/ small mufflers are just very common where I ride. I know it's very different in other parts of the world
To me the H2 OEM muffler & also the cat looked hideous, the muffler is huge and blocked the great looks of the single sided swingarm, the cat looks like a big box that's out of place on such a cool looking bike. The stock system also drowned out too much sound & weighs 36lbs. The Akrapovic muffler is slightly better looking than the USA oem version muffler but not by much & its way too quiet for my taste, plus there's still the cat & performance issue.
I knew I wanted to reflash the bike stage II & I like a loud exhaust. I wanted the added performance but the sound or lack there of & looks had to be fixed as well. If that's what you like, to really hear the machine, it's really hard to put into words how much more fun the H2 is when you can really hear it w/ a full exhaust. I rode my H2 for over 4000 miles w/ the stock exhaust so I got a decent idea for the sounds it makes, I've got 9500 miles on the bike now & it still gives me goosebumps listening to the different noises, the growls while accelerating & during deceleration, the full exhaust doesn't just make the bike louder, it sounds completely different & adds so much to the riding experience.. Inside my helmet I was literally laughing out loud first time I took out the bike w/ the new exhaust.
Exact DB doesn't matter at all to me because I've never had anyone complain and to my own ears BD levels go up & down based even on what helmet I'm wearing that day, or if I'm wearing Bluetooth earplugs, I just knew I wanted it much louder than stock, like how Kawasaki would have made the bike if they weren't hampered by government restrictions.
- Looks really great. Guessing that DBs will be above what the tracks require that Bob runs on.