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Old 08-20-2013, 01:26 PM   #1
dustya
 
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Vehicle: 01 ford mustang gt
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Default Hpipe need tune?

01 gt just put hpipe on no cats mileage sucks now and feels alittle sluggish from before and obviously cel came on so do you need to tune when you put aftermarket hpipe or just shut off rear o2's?
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Old 08-20-2013, 04:31 PM   #2
school boy
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just turning off the rear o2 sensors should do the trick
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Old 08-20-2013, 06:41 PM   #3
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just turning off the rear o2 sensors should do the trick
thxs thats what i wanted to kno
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Old 08-20-2013, 06:41 PM
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