Exhaust interchangeability

[Jwhit89]

Hello again,

I was basically given a nice exhaust today, when I got home i realized it was for an 82 gs1100. Is there any chance of the head pipes fitting my 79 gs850? Worst case I’ll cut the mufflers off and weld them to my stock exhaust. Just got home and won’t have a chance to try fit up for a couple days. Thanks in advance!

[Rich82GS750TZ]

Not exactly sure but if the 1100 is a G, GK, or GL (G =shaft drive), that’s an 8 valve engine like the 850, you probably stand a better chance of the that exhaust fitting on your 850. If the 1100 is an E or ES model, that’s a 16 valve engine and I’d say the chances are slim that the headers will line up with the head on you 850. This is all just a guess, someone should chime in with a definitive answer, but give us the model of the 1100, is it shaft or chain drive?

[Jwhit89]

Rich, it is a chain drive 1100. I apologize for the noob question but truly appreciate the answer!

[Rob S.]

Rich, it is a chain drive 1100. I apologize for the noob question but truly appreciate the answer!

Is it an "E"? That would make it a GS1100EZ (the 'Z' means 1982).

[dorkburger]

Not sure about fitment, but if the 1100e exhaust is a stock system and in good shape, you may be able to resell it and put the cash to a proper system. Original exhaust systems are tough to find, especially for the high performance machines, as they often were quickly replaced.