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Originally Posted by jfaulkner
I'm not sure if it's HP related or what. They might be like the N14, they were great 500hp and under but the 525's had the block fretting issues, maybe the ISX is the same. At least the new ones did away with the DOHC.
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Ours are all between 475 and 565, all our 565's are over 600k. Mine has been uprated to 550 but I'm only at 370k miles
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2019 L5P, missing some stuff that makes it quiet.
Last edited by Mr.T; 03-16-2012 at 10:40 PM.
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