All the ST 40 mufflers up , are pretty much a fit .
The ' gap ' between the flanges - over & under the exhaust stack varies .
judicious care clamping in a vice & opening / widening to suit the G-60
is the go .
Do one side & get it even , half the differance . Then the other .
You need a file that cuts at the end - so it doesnt end bowed / bananaed .
We figure this is the one youre after ??
![](https://i.ebayimg.com/images/g/CVUAAOSw7YBgdedQ/s-l300.jpg)
The END CAPS interchange , anyhow .
got a few , dunno if the fit is G 60 or not . Nothing to opening to fit the stack , tho .
![](https://www.picclickimg.com/d/l400/pict/313451607239_/Super-Tigre-29-46-Muffler-Lot-R-C-Control.jpg)