Denso Iridium vs Bosch Super 4 | Replaced the Bosch Super 4 … | Flickr
Bosch Super 4 Spark Plug for Proton Saga Iswara Wira1.3 (WR78X) - 4pcs/SET - Proton Perodua Parts | Online store for Proton and Perodua car spare parts
BOSCH FR78 SPARK PLUG SUPER-4(1SET=4PCS) — SAJID Auto Online
Changing sparks to bosch super 4 for golf mk 4 BCB but lengths of spark plug are different. Should this be a major concern. Seller was adament these plugs were compatible. : r/MechanicAdvice