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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Denso Iridium or NGK laser iridium



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      03-02-2011, 11:57 PM   #1
jlE90
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Denso Iridium or NGK laser iridium

I am having a problem picking which plugs to use. My car is a 2006 325i.
I've seen that bmw's stock plugs are ngk iridium but are they laser? would it make a difference if i drop the denso iridium IKH20 since it is suppose to be direct replacement
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      03-03-2011, 12:51 PM   #2
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Quote:
Originally Posted by jlE90 View Post
I am having a problem picking which plugs to use. My car is a 2006 325i.
I've seen that bmw's stock plugs are ngk iridium but are they laser? would it make a difference if i drop the denso iridium IKH20 since it is suppose to be direct replacement
i say stick with ngk.
I tried looking for alternatives but either the the threads were short or the electrode was crap, i forget.
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      03-03-2011, 05:19 PM   #3
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Isn't the one of the OE plug options NGK laser iridium?
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      03-04-2011, 12:41 PM   #4
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Bosch FR-7-NPP-332 or NGK PLZFR6A-11S (5987)
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      03-07-2011, 06:27 PM   #5
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Sweet. Subscribed for future reference
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      03-07-2011, 09:35 PM   #6
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In have used both the bosch and the NGK, back to back on a dyno.

The NGK's ran better. I was getting a bit of ignition break up in mid range with the Bosch.

SO NGK all the way
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      03-09-2011, 12:42 AM   #7
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Quote:
Originally Posted by n52330i View Post
In have used both the bosch and the NGK, back to back on a dyno.

The NGK's ran better. I was getting a bit of ignition break up in mid range with the Bosch.

SO NGK all the way
damn.. I just bought the bosch plugs and put em in my car this morning.
if I had known this I would have opted for the NGK's...
too late now though
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      03-18-2011, 11:29 AM   #8
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Thanks for the info
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