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      08-04-2019, 04:01 AM   #1
b21playa
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Which spark plugs

Hi all

Need to change my plugs, not sure whether to go oem Bosch zmr5tpp330 or go for a colder plug like the ngk 97506

What are you thoughts?

Thanks in advance
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      08-04-2019, 05:24 AM   #2
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Depends on whether you're tuned or stock. I had stock plugs with a stage 1 and then switched to colder with stage 2
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      08-04-2019, 05:47 AM   #3
b21playa
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Quote:
Originally Posted by Boosted M5 View Post
Depends on whether you're tuned or stock. I had stock plugs with a stage 1 and then switched to colder with stage 2
Im stock as far as I know - brought the car used. Should I stick with oem at preset gap?

Last edited by b21playa; 08-04-2019 at 06:53 AM..
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      08-04-2019, 11:37 AM   #4
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Oem if your stock
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      08-04-2019, 03:30 PM   #5
b21playa
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Originally Posted by Pikey Motorsports View Post
Oem if your stock
Many thanks.

Previous owner said he replaced them but no proof so thought Id do them for the sake of 100
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      08-06-2019, 11:06 AM   #6
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Bosch told me they are superseding the 8179 double platinum spark plug in our F10 M5 for the 8165 that goes in the new F90 M5 (ZR5TPP320,) but the Bosch website is still showing the 8179. Basically just goes from an 8mm diameter center electrode to a 6mm diameter center electrode.

I'm still not certain and would like to know if there is a better Iridium tipped (NGK) spark plug available for stock applications? NGK says the Laser Iridium SILZKBR8D8S is a direct replacement, can anyone confirm? 8 heat range (Bosch says the 8179 is a manufacturer 5 heat range.)

https://f10.m5post.com/forums/showthread.php?t=1605952
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Last edited by AirBull; 08-06-2019 at 11:16 AM..
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