BMW recently confirmed the introduction of a performance upgrade for the N54 twin-turbo engine on 135i and 335i models that will bring some extra power to the two mentioned cars. BMW announced the new ...

Car enthusiasts are rarely satisfied with their car's performance, and now BMW 335i sedan owners can get an additional 20 hp. The new BMW Performance Edition option, available for the 335i or 335i ...

BMW announced it will be offering an upgrade kit for all models fitted with the N55 engine but no one expected the bump in power to be so impressive. Even Steve Dinan had to admit that you get a lot ...