3-in-1 BSM exhaust SFC 1000

[Garry]

Sometimes you come across something and think, ‘Yeah, I’ve got to have that,’ but you know full well beforehand that you might not use it at all...
That’s exactly how I happened to come across a 3-in-1 BSM exhaust for an SFC 1000. I’ve already given it a good polish. I’m familiar with BSM or Janton exhausts from back in the day, having had one on my Suzuki GS 1000, and it’s a quiet exhaust. That’s what I prefer.

I’m missing the centre stand stop. Does anyone have any idea or an example of another 3-in-1 system showing what such a centre stand stop looks like?

As it’s for an SFC, it won’t just fit straight onto an RGS, so I’ll have to make something. The headers, by the way, are 38mm in diameter, so larger than standard...

Is anyone else familiar with this BSM exhaust system?

Of course, I may just leave the standard exhaust system in.

 

[sfcpiet]

Garry,

The RGS has basically the same mounting points as the 1000 SFC, their silencers were identical bar a couple of extra holes in the end cap.

The mounting point in your pic looks more like it's intended for a 180° frame.

I once had a BSM system on my 3C. Was nice and quiet but choked the engine to a 170km/h top speed. I proceeded to gut it and found a serious restriction in the 3-1 collector portion, whole thing went straight to the bin...

piet

 

[Paul Marx]

Doesn't look very efficient.
Paul

 

[piranha-bro2]

Plenty of back pressure with that exit hole!! Why use larger ID headers and then try and squeeze it out through a 1/2 inch tube?! Form over function ...

 

[chrisk]

Plenty of back pressure with that exit hole!! Why use larger ID headers and then try and squeeze it out through a 1/2 inch tube?! Form over function ...

There a joke about an elephant asking a bloke, who taking a piss in the jungle and the elephant says, How the hell do you breath through that? But as this is the Tech section I won’t tell it.