Quote:
Originally Posted by Dynomite
What year ZR1 and where did you pick up the headers 
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The car is a 92. I bought the headers from a forum member, (they wouldn't pass visual Calif inspection).
When installing these i found in my exhaust system when they eliminated the Resonator, they cut off the resonator 2"pipes and welded right over them leaving a choke point. Well I cut this out.
Removing that choke point, installing new 02 sensors and the headers made a definite power increase really woke up the car, I wound it up to about 4K plus and started a sideways traction thing. Not wide open. Never did that before. Also noticed a slight miss now at idle.