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E85 / E86 Z4 (2003-2008)
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  #1  
Old 06-01-2020, 04:56 AM
duke48 duke48 is offline
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Z4 Spark Plug

Is Bosch the plug to get, or NGK? Platinum, Iridium, Copper, have 2.5L with 107,000
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Old 06-01-2020, 05:23 AM
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Doug Huffman Doug Huffman is offline
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Brand doesn't matter so much as proper fitment and attributes. Osmium or Iridium are better than platinum which is better than copper. Multi-gap is better than single gap. Be careful pulling coils. See NewTIS.info instructions cautions.
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Old 07-01-2020, 05:09 AM
wohcrag wohcrag is offline
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Z4 what plugs to buy

Here's my two cents . Bosch - I bought 2 sets of 6 ( Amazon) and out of them 3 were bad (caused misfire). It seems as if there are a few resellers who have bought some discontinued (of out of discard pile ) Bosch stock. I usually buy from FCP Euro . So i went to their site and they had NGK for my 3.0 Z4 good price, super fast shipping 20 minute install and done. Drives smoooth baby !
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Old 07-01-2020, 07:46 AM
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dkl dkl is offline
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Quote:
Originally Posted by wohcrag View Post
Here's my two cents . Bosch - I bought 2 sets of 6 ( Amazon) and out of them 3 were bad (caused misfire). It seems as if there are a few resellers who have bought some discontinued (of out of discard pile ) Bosch stock. I usually buy from FCP Euro . So i went to their site and they had NGK for my 3.0 Z4 good price, super fast shipping 20 minute install and done. Drives smoooth baby !
There are lots of fakes stuffs floating around Amazon. My bet is that those were counterfeit Bosch and it would probably did the same thing had they been NGK. It's best to buy from a reputable authorized reseller such as FCP.

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