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- - Jet or Hypertech chips (https://www.mercuryforum.com/forum/mountaineer-17/jet-hypertech-chips-4816/)

stangcbr

05-08-2010 10:20 PM

Jet or Hypertech chips

Has anyone tried the JET chips or Hypertech programmers for your mountaineers? I wonder if they increase fuel milage at all or fix the harsh shifting issue that one of the TSBs deals with.

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