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Old 09-18-2013, 07:09 PM   #15
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SuperGewl's Avatar
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Ford Super Duty Owner
Join Date: Aug 2004
Location: Oregon
Posts: 1,310
Originally Posted by beenthere View Post
here is a post in the Cummings forum

Cummins power
Okay... just returned from a 3,000+ mile winter trip and have a lot of questions and issues. This one is; who of you have added performance chips to your ISB 275 HP Cummins, and do you see a significant improvement in power and/or mileage? Mine does fine on flat or gently rolling ground but suffers badly on long and/or steep grades. I can live with it, but 35 mph on Interstate grades is not fun!
'99 Diplomat 38A- "High Plains Drifter"
'02 Wrangler Tender
Chip will get you more power but forget about fuel mileage. With more power comes higher speeds thus less fuel mileage.

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2014 Itasca Sunstar 35F; 5 Star tuned; 2014 Jeep Cherokee TrailHawk
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diesel, power, cummins

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