2004-2006 Pontiac GTO: Year-to-Year Changes
Updated: 11/23/08
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Learn about the year-to-year changes of the 2004-2006 Pontiac GTO. Get full details of the styling and performance changes throughout the history of the 2004-2006 Pontiac GTO.
Year to Year Changes
2005 Pontiac GTO:
A 400-hp 6.0-liter V8 replaced the 350-hp 5.7 V8 as GTO's sole engine for 2005. Also newly standard was a hood with two air scoops. A scoopless hood was a no-cost option.
2006 Pontiac GTO:
Available 18-inch wheels marked 2006 for what Pontiac said was GTO's final model year. Slow sales and an aging basic design sealed this sporty car's fate.








