O.S. Speed TR03 & MR04 1:8 Onroad Exhaust Set

Japanese engine manufacturer O.S has released a new TR03 (EFRA2196) exhaust for 1:8 Onroad use.  It has been designed to give powerful characteristics at the mid-speed range after reviewing the internal shape of the current TR02 (EFRA2165) exhaust.  A special coating applied to the surface also plays a part in this improved area of performance.  Additionally, the engine sound that can be noticed from the moment the engine starts.  Also released is the new MR04 manifold that can also be purchased as a set with the new TR03 exhaust.  This manifold has a revised shape from the current product MR03-WC, and has the characteristic of extending smoothly to the high speed range without compromising the medium speed range.   Both the exhaust and manifold have a buff finish and are laser engraved for easy identification.

Source: O.S. Engines [os-engines.co.jp]