Tokyo Motor Show 2017 report by Kota Sera.
http://serakota.blog.so-net.ne.jp/2017-10-26
He reports 3D printing collecting pipe of exhaust manifold of VRX30A evo at Koiwai Co., Ltd. booth.
Material: Inconel 718
3D Printer: Arcam A2X
Printing time: 22 hours
Weight: 0.96 kg