TAKE OFF Genkai Kun Speed & Boost Cut Remover for Daihatsu EF-RL L5/L6 engine. Tested, item in working condition. Originally came with a L5 Track Car halfcut, with rev-cut unknown. Tested until 9.5k RPM and yet still going. Plug and Play installation, no wire cutting. Very rare item.
Postage fee will be borne by buyer