The Corsa install time is about a half hour, but my header installation instructions stated 4 to 6 hours. My headers took about 12 hours because I had a nut round-off and I had to cut and grind it away to get the Y-pipe off.
I used a 1/2 impact wrench to bust the bolts on the Y-pipe loose. They were pretty frozen and my H2 only had 11,000 miles on it. The mistake I made was using a non-impact socket with my impact wrench and it split and rounded the nut. I other mistake I made was not having a 1/2 swival, which caused the socket to not fit completely on and this contributed to the rounding problem. I made a few trips trips Sears to get the additonal tools, but that is ok because I love tools.
If I were to do another headers installation, I would know what I was doing and could probably do the job in 3 to 4 hours.
As far as post improvements, I don't feel much of a difference for the money ($800 Corsa, $670 Gibsons) spent. I would have to drive a stock H2 to tell. Gas mileage has not really improved noticeably, but I never really set-up any kind of before and after tests. All I know is that I still fill-up often.
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09-18-2003, 09:42 AM
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