I like chipolatas but i haven't had them for a long time.
U can try places like Cold Storage Gourmet at Gurthie House near
the junction between bukit timah rd n 6th avenue?
Alternatively try Tierney's Gourmet in serene centre, further up
along bukit timah rd neah coronation plaza. They specialise in
selling western groceries.
Or else u can try Jasons which is in Orchard Towers.
Can also try the German Marketplace which is also along bukit timah
rd, just to the right of coronation plaza. Seeing as the Germans
love their wursts, i reckon theres a fair chance of finding
different sorts of sausages there.