Alfa 159 1900 Mjet 150hp 16v larger exhaust downpipe No modifications required to install it, the original is removed and ours is fitted as it is perfectly interchangeable with the original "Plug and Play".
Downpipe not approved for road use, for competition use only.
It allows to reduce exhaust back pressure by eliminating the standard catalytic converter, without causing the engine failure warning light to come on.