Straight pipes/open headers

[furious_blue_imp]

Bonnies have a similar setup to a Harley being a Vtwin and you can get a louder output from that engine.


Bonnie's are a parallel twin with a 360 degree crank. That is where the glorious british sound comes from.

I remember reading somewhere (probably reliable) that there is at least 1 Bonneville that does NOT come with a 360 degree crank (the 'America' ?).

This bike will never sound like a Harley. It's an inline 4! They have a constant output rrrrrrrrrrrrrrrrrrrrrrrrrrr at idle not like a v twin rr rr rrr rrrrr rrrr rrrrrr rr rrrrr. If you cut out the catalytic converter that's not gonna change how loud this bike it just give you more emissions and a little HP. If you run it open this bike will be the most annoying constant noise you'll ever hear at idle. I can't stand super loud pipes but I do have a great appreciation for the sputtered sound of a V Twin with semi loud pipes The CB will never be that. Bonnies have a similar setup to a Harley being a Vtwin and you can get a louder output from that engine. But you'll loose performance and engine size. If sound is your priority go with the Bonnie. My bike is running a slip on and plenty loud when you give it gas but not annoying at idle and in California removing your catalytic converter is contributing to the smog problem like all the modded lifted F-150s. There is a reason they have emission restrictions in America. I too owned a shadow with loud pipes and used to ride with Harley guys and I quickly discovered po'ing off everyone with my loud pipes isn't worth it. I got cut off just as much as on my CB, super loud pipes didn't much as far as safety is concerned.

The newer Yamaha R1s are an inline-4 with a 'cross-plane' crank that does not fire evenly. They sound so good (to me) that maybe someday I'll try and get one..