nwb up/p ? flex or not and why
#2
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Join Date: May 2003
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Car Info: '03 PSM Sedan
this has been discussed at some length, and the consensus seems to be that flex pipes do not cause exhaust leaks (if properly installed), while non-flex pipes eventually will. personally, i bought a flex pipe. i'd rather loose a couple of horsepower than have to deal with an exhaust leak.
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