09-30-2008, 08:36 PM
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CC Member
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Join Date: Jan 2007
Location: Melbourne,
VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
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Not Ranked
Hehe, yes indeed my friend. I've heard of some very strange things happening after rego!
I've been advised to fit a copper plate between the exhaust flanges with holes drilled through to act as a restrictor. That combined with factory headers + cats down to a single 2" system with pressed bends and a large muffler should get me close.
Does anyone know whether removing (and deleting from the tune) the rear O2 sensors will affect the emissions reading? I believe there are certain variants of the Commodore (ute?) that don't have rear sensors, just the two at the front.
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