Aftermarket exhaust for 1e n/a engine

[Indy Bonome]

Hi guys, ive been searching around for an aftermarket exhaust system for my ep80 which is a tiny little 1e engine.

I think it has the same fitting as the 2e 1.3 but not 100% sure.

if anyone has any previous experience or could point me in the right direction, id be greatly appreciative. Thanks alot:)