Found this in my shop this weekend. I dont remember having it on the teener. Are the bus and 1.7 flange spacing the same.

Click to view attachment

I saved this, complements of jimkelley:

Click to view attachment

So bus vs. 914 are the same?

If the same flanges are used then the 19.75 should be 20", no?

don't know bus dimensions, only 914 from the measurements in the diagram...

I have a bus muffler on my 1.7 but it exits on passenger side so the rear valance will not fit

I am using a bus muffler on 1.7/1.8 SSI HE's.

Thanks guys

Many aftermarket "header" type mufflers designed for use on 914s don't clear the fan housing on a bus. Not true the other way around. BTDT, many times over the years.

The Cap'n