VHM CDI unit Yamaha YZ 250 05-27 (2 maps, with switch)

Ignition unit (CDI) with VHM maps; the hardware is made by GET. VHM developed, tested and programmed the ignition curve for its own parts (VHM head + insert + piston) — with them the engine makes more power than with the stock ignition. MAPS • Map 1: VHM HIGH performance with HGS exhaust • Map 2: VHM SOFT (smoother power delivery) You switch between the maps with the handlebar switch, which is included. Plug & play installation into the original harness, no modifications. BENEFITS • VHM maps pre-installed • higher power output • plug & play • map switch included • quality unit by GET Fits: Yamaha YZ 250 (2005–2027).