I asked Du Rui this week about bringing a group down, and he's keen as ever. Just need to start exploring some dates.
cheers!
Printable View
K really wanting to know wtf is going on with the pipes on those bikes. On the first one has he actually rebuilt the entire exhaust system? I've been thinking of a mod for this bike but was more keen on routing it down to one pipe and off to the side rather than up to four. Also would like to see what each of them did with the rest of the exhaust system, specifically the catalytic converter section.
Personally, I'd be more interested in performance and fuel economy than the noise, but wow, the tone of that second bike is quite pleasing.
Stock sound isn't that bad on this bike either. I liked the 3-rd one, kinda throaty. Except for I'd straight cut the pipes. Sideways cut doesn't add to the design. Four-up looks lame. Benelli-QianJiang seems to have more of Benelli design; those pipes turn it back into QianJiang. Second one sounds OK, don't like the downward exhaust though.
IMHO.
I somehow think that they haven't really messed with the system. All those pipes seem to be the slip-on mufflers. Original routing must've been preserved as 4 into 1 into 2.
Have a look at this photo--it shows the exhaust below the back seat:
attachment.php
I believe they replaced the muffler completely--which unfortunately would mean also that the catalytic converter is "gone".
Those pipes are all absolutely awful. The first problem is the only way you know that you're getting any extra power from the bike is putting it on a dyno. Sure it might sound a bit nicer, but I hate to think how many hp or torques the bikes are loosing, you can see the wide open mouths on them, must be losing heaps of torque. Secondly what's the point of buying an expensive(ish) bike paying to register it then putting illegal pipes and other mods on it, then attracting the money loving Gong-An towards you at every intersection when you don't need to? If I got one I'd leave it stock. That means no stickers or leopard-skin seat covers too!
Guess bum-meter will be sufficient--particularly if the pipes are bad :-) But the exhaust is a "4-2-1-muffler&silencer"--there could be enough (back) pressure at the '1' and replacing the muffler&silencer might not have a negative effect on power and torque (?)
The loss of the catalytic converter is, however, the worst effect. :scooter:
I love this seat cover :lol8: