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#1
09-22-2009, 02:34 AM
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.
#2
09-22-2009, 02:48 AM
Hummer Guru
Join Date: Jul 2006
Location: Stouts Creek
Posts: 4,192
Re: H3 Engine Performance Up-grades
Tandrew,Quote:
Originally Posted by TANDREW
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.
Thanks for that. Can you be more specific about the advantages of PCM. They claim 1-3 more mpg and 8-10 hp improvements...
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#3
09-23-2009, 02:34 AM
Hummer Veteran
Join Date: Dec 2005
Location: NORTHRIDGE, CA
Posts: 62
Re: H3 Engine Performance Up-grades
I have an auto trans did not see any improvement on gas 13 city 16 hwy, borla catback, 33 in tires. But from a stop when you step on the gas it moves. Great improvement on power all around not sure on HP gains but there is a differance. Had the Borla first better sound not that much more on power. Added PCM big improvement. I'd recomend for the money best improvement you can get. You'll be happy i sure was.
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