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Since 1962, Kooks has had the reputation of making the highest quality and best performing headers in the industry. Their Long Tube Headers for the 2004-2006 GTO uphold that reputation. Dyno gains of over 30 horsepower have been reported and the exhaust note is utter muscle car music to your ears.
Primaries are manufactured from 1 7/8 inch mandrel bent T-304 stainless steel and 3/8 inch flanges with a 3 inch collector.
For racing and off road applications only. Not legal for sale or use in the state of California, nor in states which have adopted California emissions standards. Check your local laws for emmisions regulations.
NOTE: Proper engine tuning may be required to ensure that the headers are properly adapted to your car.
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