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Old 10-16-2009, 07:55 AM   #1
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Default GRP .21 sport

Recently got a GRP sport motor. Going to need a new P/S soon. It says the parts are interchangeable with the tuned line...Is this the case witht the P/S and will I have to change anything else over? Conrod or anything?
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Old 10-16-2009, 08:20 AM   #2
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all parts are interchangeable. the only difference between the regular and tuned are the sleeve and button head, regular plug and turbo plug. you can run either, i ran the standard on my tuned cause the plugs were 6 bucks vs 10 for the grp plugs. i think the cranks are the same maybe not coated, not sure.
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