sonofdennis Posted April 6, 2007 Share Posted April 6, 2007 Don't mean to start a thread just report my pleasure. I Put the AL3923 in my 03' 1150 RT (single spark) last night, hard start and the rough idle went completely away. Throttle seems more predictable. For me it really made a difference. Can anyone tell me why? I would love to know why these plugs worked so much better. Link to comment
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