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if i cut out my exhaust and resonator will it affect my cali emissions? and will i lose power doing this and how much pipe do i need if i do just the resonator? please help
 

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2003 gmc envoy_slt
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This does not affect emissions. It is for deadening sound only. It will not help or hurt mileage or horse power. If you go straight out the back you will need a 2.5" x 18" piece of tubing.
 
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