The Hobby Boss 1/48 A-10 kit can make up into an impressive kit right out of the box. As with another production kits however, it has some areas that need detail upgrades to represent the aircraft in scale. One of those areas in this kit are the engine exhausts. The Hobby Boss parts C8 & C9 make up the turbine section of the engine. There is no internal detail so you end up with a black hole inside the exhaust.
Luckily, Phase Hangar has developed a solution. This detail set includes one piece -3D printed exhaust cones with amazing surface detail inside and outside. Two other parts create the internal turbine details one would see if looking into the exhaust of the real thing. Phase Hangar provides detailed instructions online that take the builder through the steps to incorporate this set into the kit parts.