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03-20-2003, 10:09 AM
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Registered Member
Join Date: Mar 2000
Location: Stroudsburg, PA, USA
Posts: 150
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It has to be a leak of some sort. When you bolted the catback back up did you evenly tighten the bolts from the catback to the H-pipe? And same with the bolts from the headers to the H-pipe? Do you have a gasket in-between the headers and the H-pipe? check all of those and see if it still does it.
I have BBK full length headers and an o/r H-pipe with mac catback and I have no hissing noise like you described.
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88 Stang 306 ci. GT Mustang heads- ported and polished/milled---Soon to be AFR 185cc 1.7 crane roller rockers/extra hardened pushrods FRPP X-303 Cam Stock Intake-1 inch intake spacer BBK Cold Air Induction Stock Injectors--going to 24 pounders BBK Full Length Headers Mac 2.5 inch Cat-Back 8 Point Cage Sub Frame Connectors World Class T-5 Steeda Shift Cable,Quadrant,Firewall adjuster King Cobra Clutch Pro 5.0 Shifter Alunimum Driveshaft/ Drive shaft loop Kenny Brown suspension 3.55 gears |
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