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Same here but Stage 1 Tune
I changed my plugs at 50k and used the same plugs and .028 Gap from the Bosch.
Then at 60K miles went BM3 Stage 1 93 with CP, IC and DP.
After data logs -- found all running well on existing plugs & gap.
Thinking of Changing Plugs & Coils now that I am near 70k miles.
Just not certain as to which plug and coil -- The Bosch has worked well but Eldor and NGK are looking superior.
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