Thread: Spark plugs for more boost
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Old Dec 2, 2015 | 07:26 PM
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Guran
Joined: Dec 2007
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Default Re: Spark plugs for more boost
NGK R5671A-7
Racing spark plug
25.1 psi, third gear
 
Last edited by Guran; Dec 2, 2015 at 07:41 PM.
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