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Discussion Starter · #1 ·
I have had my 2014 GC Limited 4x2 for three months now, 7000 miles, one DEF refill at 5000, averaging 30.8 mpg. My question is, has anyone added the exhaust brake kit from Chrysler to their jeep yet, part # 82211189, or added and after market engine brake? If so, what have been the results?
 
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