Thread: What Spark plugs 430+ bhp with msd waisted spark
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Old Jan 11, 2017 | 04:59 AM
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Heitmann
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with 430+...... IK31
its a colder plug - more safe at that power levels

http://shop.motorsport-developments....of-4-693-p.asp
Last edited by Heitmann; Jan 11, 2017 at 05:00 AM.
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