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3" cat back install, gutted post cats, boost guage flutters.......

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Old 09-01-2006, 10:06 AM
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Default 3" cat back install, gutted post cats, boost guage flutters.......
just installed a 3" cat back and gutted my post cats at the same time, when i boost my boost needle floats back and forth from say 15-16 while boost'n, this normal ? you guys also?



thanks for any help
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Old 09-01-2006, 10:16 AM
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pressure test your intake track, mine did that when i had a hole in my bipipe
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Old 09-01-2006, 10:16 AM
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is it somewhat smooth ? if not you have a boost leak i think .
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Old 09-01-2006, 10:17 AM
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oh my .. why paying all that $ for that pipe ?!111 uh nice sig btw .
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Old 09-01-2006, 10:20 AM
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Default came fubar'd, they took care of it reasonably well, but yeah, set it and forget it my ***;P
thanks, she's nice
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Old 09-01-2006, 10:21 AM
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waste gate or BPV issues... i have a 710n with a cracked nipple and it was fluttering
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Old 09-01-2006, 10:21 AM
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lol i pressure tested a couple times, i guess i can test again, i might swiss cheese the air boxAlso
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Old 09-01-2006, 10:21 AM
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oh soo nice )
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Old 09-01-2006, 10:22 AM
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how many times did she tell you "easy on the nipples" ?
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Old 09-01-2006, 10:24 AM
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the bpv's were replaced 6 months ago i was told, shrugs, they werent Ns but maybe S's?
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