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post #1 of 2 (permalink) Old 09-16-2009, 12:46 PM Thread Starter
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Join Date: Sep 2009
Location: Rochester Hills, MI
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G8 Warranty

Does anybody have any idea about what kind of modifications you can do to a G8 WITHOUT voiding the bumper to bumper and drive train warranty from GM?
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post #2 of 2 (permalink) Old 12-01-2009, 12:05 AM
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Yes, I do because that's what I'm doing.
I have had my G8 GT completely Pedderized. Every single Black OEM bushing has been removed and replaced with Pedders Red Polyeurethane, front and back. I'm saving up money to replace the stock oil and air shocks with Coil Overs which are far superior and give the car a feel as if its on rails. Then thats all you can do to increase the handling, ride, suspension and control of the car. Pedders Suspension - Pedders Suspension - More than just great products... No Bull


Next I bought a roto-Fab from the pontiac dealer to increase the horsepower. Your car will really come to life after a Roto-Fab, and save a few ticks on the gas mileage too. Roto-Fab

The only other modification you can perform without voiding the manufacturer's warranty and any extended warranty is a performance exhaust system. I'm going to buy a Corsa Performance Exhaust system the Crusing, not Sport style. That will increase horsepower another 15 - 30 depending on how the car reacts. Corsa Performance Exhaust

If you tune your car, you void the warranty. Most people I know doing those kinds of mods have equipment to untune it before taking it back to the dealer for any repairs. But that is such a hassle, just leave it stock, don't tune it, or make any modifications that alter the interior of the engine and your fine.
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