Abarth produced high-performance exhaust pipes, diversifying into tuning kits for road vehicles, mainly for Fiat. A racing exhaust was produced for the 1950s Lambretta models "D" and "LD". Original Abarth LD exhausts are now valuable collector's items. Reproductions are available, which carry the Abarth name; how Fiat feels about this is not known. Lambretta even held several 125 cc motorcycle land speed records during the 1950s due partly to the exhaust that Abarth developed for them.

In 1958, Abarth