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Pontiac GTO DiabloSport Performance Chips & Programmers

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Latest Customer Reviews

DiabloSport PC Interface - USB Cable Kit Reviews


You Can Feel The Difference

Reviewed By Lester S (Libertyville, IL) Reviewed for a 2006 Pontiac GTO —2/12/2013 5:53 AM

Very good upgrade for added stopping power for my GTO.

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DiabloSport Trinity T-1000 Programmer Reviews


05 GTO, not sure if its worth it

Reviewed By michael c (fort pierce, FL) Reviewed for a 2005 Pontiac GTO —4/17/2012 7:09 AM

I'm getting about 3- 4 mpg better, performance is difficult to rate. It needs more tuning options for the novice who is not familiar with the settings. There is not enough info with the product that tells you what different features do. Install is easy, as long as you have some computer skills, basic skills. Big price tag, not sure if its worth the bux.

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DiabloSport Predator P2 Tuner Reviews


2005 GTO Out-of-the-box Results

Reviewed By Brent E (Omaha, NE) Reviewed for a 2005 Pontiac GTO —9/8/2009 8:16 AM

I bracket race my car at an 1/8 mile track and had a race Saturday and Sunday at the same track and very similar weather conditions. The stock tune was used the first night with a best of 8.970 and 80.26 mph. I put in the 91 octane performance tune the next day and ran a best of 8.714 and 83.67 mph. I am very happy with the performance increase. There is also a data logging feature that looks very good for fine tuning. I watched some of the log but haven't tuned using it yet. One disappointment that would only affect a few buyers is that I believe the fan setting is incorrect for my car. My car has 2-stage fans that turn on and off at specific temperatures. Apparently some 2005 GTO's had variable speed fans that operate at a percent of full power at different temperatures. The tuner is set for the variable fans. By researching forums on the internet and trial and error, I found settings that would start the fans at 199 degrees. I wanted it cooler so I also found settings that would run the fans on low all the time and that keeps the temp down to 194 at idle with my stock thermostat.

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