gio400 Posted July 9, 2021 Share Posted July 9, 2021 I have a 2001 mack rd688 with e7 400hp. What is the maximun hp i can get from the motor and what components i need to change? Quote Link to comment https://www.bigmacktrucks.com/topic/67296-hp-increase/ Share on other sites More sharing options...
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gio400
I have a 2001 mack rd688 with e7 400hp. What is the maximun hp i can get from the motor and what components i need to change?
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