H3 Engine Performance Up-grades - Hummer Forums by Elcova

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H3 Engine Performance Up-grades

#16

09-22-2009, 02:34 AM

TANDREW

Hummer Veteran

Join Date: Dec 2005

Location: NORTHRIDGE, CA

Posts: 62

Re: H3 Engine Performance Up-grades

Hey so far Iam happy with my PCM tune. Installed when truck was new 26000 miles so far no problems, what a differance it makes.
Look like some one else re-posted my first post about PCM from a while back.

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