wot spark plugs as a upgrade
16 November 2011, 08:44 PM
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wot spark plugs as a upgrade
I have a 03 wrx which iam gonna be running 350bhp ish
16 November 2011, 08:54 PM
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NGKPFR7b should be OK at that level withou getting any colder / more expensive plugs
what turbo ?
Shaun
16 November 2011, 08:55 PM
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16 November 2011, 10:11 PM
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I ran my bug at 360 ish BHP with PFR7b's.........I went to a colder plug when I added the meth injection at the suggestion of RCM
Shaun
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