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Old 02-01-2012, 07:08 PM
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Default Spark plugs

I have a 2007 gxp, it is stock except for a k&n intake and resonator delete. Should I run the tr51x or tr61x plugs? I don't think I am going to invest in any power mods, so I think I should stick with the stock heat range but will switch if it will help with detonation.

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Old 02-01-2012, 07:33 PM
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I was told if your not spraying or anything like that to stay with the stock heat range
Old 02-01-2012, 07:54 PM
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Just put in TR6Ixs today with NGK wires. This was on Lew's suggestion. So far, it's got a bit more throttle response and less KR is showing up on the Trinity.

So far, so good!




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