<VV> Mufflers on LM

[rich dixon]

Hi; Can anyone suggest some stock size and shape mufflers, other that what is available from the Corvair vendors, that would be a close match to the factory muffler size and dimensions? 

At one time I was told of a WALKER muffler that would work a PN of 22221, but it's 2 inches too long verses the Corvair stock muffler @ 17 inches long. 

Thanks for your suggestions - direction.

RD