Hi hope you can help.. The Magnet Marelli digiplex has a stamp on it med 805A is this a quatro valve system? one box has 375 805 stamped on it the other has 0105 805. Should they both have the same numbers on them!!! i had leads changed after... a major service (changed timing belts, bearings) to improve performance (bit sluggish) i was advised that the leads had to be changed, and now one of my ignition systems has to be replaced... it was okay when i drove the car back there to replace leads? just like to take good care of my car cause im a perfectionist.. any help would be great thanks...i have all the service history of my car!