Exhaust

EXHAUST SYSTEM


The exhaust manifolds are stainless steel with an air gap insulation that allows the converters to warm up rapidly and reach their operating temperature. One metal monolith converter is used per cylinder bank with pre and post oxygen sensors for OBD II compliance.

The exhaust gasses are combined in the one piece central silencer with two outlet openings at the rear which lead to the two main silencers.

MAIN SILENCERS

Four main silencers are used on the M5 to comply with international noise emission regulations. Due to the positioning and space requirements for the silencers, the floor pan of the trunk is redesigned and the spare wheel has been eliminated.

The stainless steel exhaust system is initially a one piece component after the exhaust manifolds. For repair purposes, the system is separated into three sections at specific mounting points.