Postby John Webb » November 11th, 2019, 10:57 am
I'm fairly sure I have what you want. I googled SL2123 and the one I have looks the same. Twin outlets, Barrel length 140mm, Diameter 50mm. Exhaust Flange centres 45mm. Used but in unmarked condition.If you think it's OK send me your email address and I'll send some pictures.
John Webb 800