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Club Member
Location:
sydney
Registered:
May 2002
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Re: 4AG spark plugs
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Sun, 18 April 2004 09:50
 
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Ive tried everything from platinum from various brands to a range of standard material and without a dyno reading theres not much to tell the difference between them other than the platinums will always have longevity , i now exclusively use the NGK R BCPR5EY II for on the street and as a race plug i sometimes use an ND k31a-z but have found these plugs to not last long under rich conditions.
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