Exhaust connected type 4 in 1 with, four primary tubes of an identical length of 850mm joined together in a Collector then in a tail pipe. A swivel tube allows to absorb the mobility between the primary exhaust and the silencer installed under the cockpit.

This product has been designed to cover the entire range of ROBIN DR400 equipped with a Lycoming O-320 engine.

The respect of the identity of the lengths of the primary pipes allows an equivalent output for each cylinder, bringing a gain on the fuel consumption (approximately 10% at equal performance) while decreasing the vibrations engine for a better comfort inside the cockpit. The gain in climb is 12%.

The thermal recovery of the exhaust gas flow supplies the carburetor and the cabin heater. Carburetor heater and cabin heater boxes installed respectively on the primary and tailpipe manifolds.
The choice of materials with high thermal resistance ensures excellent reliability.

A revision of the Silencer is required every 600 hours for the necessary inspection of the soundproofing materials.