Compared to os engines tr01 efra2098/tr02 efra2165, the power from mid-range has improved

Performance has been improved by applying a special coating to the surface. In addition, the mr04 manifold has improved its power from mid-range by revising the manifold angle of the current product mr02/mr03-wc

With these, there are three types of line-up for 1/8 racing engines that will perform to the max at any track

The exterior of the silencer and manifold has a laser-engraved logo

what's in the box?

• Tuned silencer tr03 efra2196 (72107851)

• Exhaust adapter seal ring

• (3) joint spring