04-05 Bonneville GXP Tuning - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-31-2012, 05:33 AM   #1
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Default 04-05 Bonneville GXP Tuning

I just wanted to let all the Northstar Bonneville people know that, our cars can be tuned now. I just installed my tuned pcm from Madtuner.com today and wow what a difference in every way. He only did a mild tune because he hasn't tested it on a local car on the dyno yet to see how far the tune can go. All I know is that I'm at 5000ft altitude in Reno NV and the mild tune that he did for me made my car come alive in the thin air. I'm heading to the track tomorrow to make a few runs to see what I put down.

When you call or email Madtuner you will reach Ion, he realy knows his stuff and is a great guy to deal with. And I would like to say thanks to Ion for doing this for the small group of the Northstar Bonneville family.

I can't wait for the MAX TUNE!!!!!!!!
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Old 03-31-2012, 10:12 AM   #2
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Any idea what software he'* using?
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Old 03-31-2012, 10:33 AM   #3
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From the looks of the site, older cars he uses Tunercat, and possibly EfiLive for the newer makes. He appears to be a reseller of EFILive also.
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Old 03-31-2012, 11:19 AM   #4
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If there are any tuners in the st louis area im very interested.
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Old 03-31-2012, 12:13 PM   #5
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I only know of 3 or 4 people here on the forum that has a tuner. I have one, but I'm in NY. Sorry bud.
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Old 03-31-2012, 12:16 PM   #6
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Hey Jaun, make sure they are not locking your tune. If they are and the company belly'* up, your out of luck.
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Old 03-31-2012, 12:32 PM   #7
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Quote:
Originally Posted by Mike1995 View Post
I only know of 3 or 4 people here on the forum that has a tuner. I have one, but I'm in NY. Sorry bud.
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Old 03-31-2012, 05:31 PM   #8
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Any idea of what the tune consisted of? What did they change?
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Old 03-31-2012, 06:03 PM   #9
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I'll have to check at HPT to see if they opened up the GXP to their software.
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Old 03-31-2012, 08:04 PM   #10
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I didn't see anything relating to the GXP on the supported list. Dan, HPT updated the Beta software just a few days ago? Probably in your login page at HPT.
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