- New
TF556 replaces the centre silencer on Discovery 1 with the 3.9 EFI engine and three-bolt flange, model years 1991–1998. It is a replacement pipe rather than a silencer, and changes the exhaust sound. Check that the vehicle has the correct flange type.
Terrafirma describes grade 409 as a ferritic stainless steel used in exhaust systems for its formability, weldability and resistance to atmospheric and exhaust-gas corrosion. Light surface rust can form; the material is not intended to retain a decorative polished finish.