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Discussion Starter #1
My e30 m3 is equipped with bosch platinum plugs...anybody here knowledgable if it is right for my type of car? I've been wanting to get rid of them becaue I heard they are only suitable for certain cars. Any help would surely be appreciated!
 

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there fine as long as they arent platinum +4's the P+2 are ok but the 4s dont really work so well in our cars
 

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Discussion Starter #3
I think they are the p4's.. I will remove them today and replace them with stock plugs. Thanks for the info! My uncle who is a mechanic did tell m that he had problems with bosch p4's on a 525 once that is why I got curious.
 

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ex owner/admin
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ya for some reason and its been long debated that the P+4's are either awesome or garbage, stories you hear are they burn out so fast , they cause major performance problems etc etc etc. then on the other side of the coin you hear that so and so never has once had a problem with them. i suggest you run them , if you have a problem then change them, if you dont , then good. :thumbs
 

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Discussion Starter #5
I still heven't pulled them out. I seem to think that my e30 m3 has more power to offer than what I get. Or maybe it is because its a four banger. Then again I rarely drive it over 4k rpm's.
 
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