In older vehicles this is done via an Ignition Distributor, with newer vehicles using Multi-Outlet Coils with Ignition Leads connected directly to the Spark Plugs. HT Leads, Ignition cable, Plug leads, Ignition wires.
Intermotor 73953 Ignition Lead Set HT LEAD SET FOR VW GOLF CADDY SKODA OCTAVIA
Intermotor 73946 Ignition Lead Set HT LEAD SET FOR VW POLO MK3 1.0
Intermotor 76122 Ignition Lead Set for FIAT & LANCIA & FORD KA & MITO 1.4 / 1.2
Intermotor 76369 Ignition Lead Set for AUDI A1 & A3 / SEAT / SKODA / VW 1.2 TSi
Intermotor 76329 Ignition Lead Set for MERCEDES-BENZ A-CLASS / B-CLASS 1.5 1.7 2
FIESTA RS TURBO CVH PLUG LEAD SET IGNITION LEAD SET ELECTRIC BLUE XR2I XR3I
