O.S. 21XM Version II Outboard Lower Unit Assemblies and Parts flex Muffled tuned pipes for all

Muffled tuned pipes for all sizes of marine engines

Head buttons available for both turbo and standard plugs

Weight: 205 g

Power Output: 1

with a slight modification to allow the header to clear the lower unit when mounted

O.S. 21XM Version II Outboard Lower Unit Assemblies and Parts flex Muffled tuned pipes for allOutboard Lower Unit Assemblies and Parts that will work with all Novarossi Marine Outboard Engines. New in stock. 21 OS Versions 1 and 2, and 21 Lawless OS Outboard Lower Units will bolt directly to the Novarossi 21 KEEP Outboard Engine 45 K&B and 45 Lawless Outboard Lower Units will bolt directly to the Novarossi 46 TO BE Outboard Engine