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Old 09-28-2006, 06:57 PM   #37
5th Gear Member
Join Date: Apr 2002
Location: toronto
Posts: 1,105
Originally Posted by fukenricen
i think your right about that paul but either its or milos car that with a stock vr exaust it only goes up to 15 but once the highflow race muffler is switched it goes well over 35psi plus,funny how such a restriction can cause so much back pressure for boost not to be built.
thats jps car........when we ran hi boost on the highway that was the problem
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