Bigl62 Posted October 23, 2017 Share Posted October 23, 2017 Anyone have any success story with tuning a mp8. I have a 2014 rated 505hp. Would like better performance and contemplating tuning it. Looking for ideas and experiences. Quote Link to comment https://www.bigmacktrucks.com/topic/51480-mp8-tuning/ Share on other sites More sharing options...
Mackpro Posted October 25, 2017 Share Posted October 25, 2017 Certain year models of the MP8 505 you can have it bumped to the 505 Plus and gain some torque. I can't remember if it's 100 or 200 ft pounds. We have a few of the Plus trucks running around here and the one I rode in was grossing close to 100,000 pounds was in no strain up hill or in town driving. If your truck has the 2 piece valve cover I think it can be done, if your trans is rated for the extra torque Quote Link to comment https://www.bigmacktrucks.com/topic/51480-mp8-tuning/#findComment-383408 Share on other sites More sharing options...
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