Best spark plugs?
05-02-2011, 06:29 AM
#1
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My Ride: 2006 530xi (Titanium Grey/ Black interior) Debaged, L.e.d. light upgrade throughout. ACS roof spoiler. H&R sport sprigs, Angel eye upgrade, euro sticker, ,matte black grills.
Denso or Ngk? Or Oem?
05-02-2011, 06:57 AM
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My Ride: 2008 550I LOADED, all options except HUD and NV
The opinions will vary greatly, Iridium plugs will be good, IF and only IF the amount of Iridium actually contained is significant enough. Cheap iridium plugs won't have enough. I recently changed mine and went with Bosch Platinum +4 ($6/ea @ O'Reilly), which it turns out WERE the OEM plugs. My car had the original plugs still in and they were the Bosch just with BMW stamped on them. 
05-02-2011, 07:21 AM
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My Ride: 2006 530xi (Titanium Grey/ Black interior) Debaged, L.e.d. light upgrade throughout. ACS roof spoiler. H&R sport sprigs, Angel eye upgrade, euro sticker, ,matte black grills.
I heard bosche were ok too. I've had denso before but not on a bmw and never iridium.
05-02-2011, 06:12 PM
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My Ride: Mini Cooper
I have pulstar which I will change in my next service.
I will let you know if they are any good or no
http://www.pulstar.com/products.htm
I will let you know if they are any good or no
http://www.pulstar.com/products.htm
05-03-2011, 04:33 AM
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My Ride: 2005 525i, 6spd manual, Premium pkg, Cold Weather pkg
I got raped! My fault for not doing research, but just had my plugs replaced @ $22.60 a piece! Replaced with OEM Bosch.
Sorry for the hijack!
Sorry for the hijack!
05-03-2011, 10:08 AM
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any reason why you don't like Bosch so much? I'm gonna order NGK too but it seems like lots of forum members used Bosch. I had good experience with NGK back in the days for my Z.
05-03-2011, 10:39 AM
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My Ride: 2004 525i
every car i've ever had with bosch plugs have run better when i put NGK's in them. people will probably point to used vs. new plugs, but i just feel more comfortable with NGK based on my experiences.
05-03-2011, 02:13 PM
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My Ride: 2007 530i Alpine White with Navi and Premium PackageIn progress: OEM Mtech kit, H&R Sport Springs, and 19
I would argue its just the benefit of putting new plugs in. I replaced mine with Bosch (there were NGK in my car) and it immediately remedied the rough idle I was experiencing.
I got my Bosch for just over $8 a piece online.
I got my Bosch for just over $8 a piece online.