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Old 09-16-2007, 04:51 PM   #13
mustangman02232
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Vehicle: 04 F350 6.0
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Default RE: Cutting the y-pipe for H-pipe duals. Affected Backpressure?

backpreasure is the force that is created by the motor trying to push the gasses out, that is bad, however, you want the exhaust gasses to get "sucked" out of the motor with as much velocity as possible going to a 2.25" cat back with an H/X pipe will decrease backpreasure and help a little bit with velocity to help give you a little more power
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2004 Ford F350 6.0 PSD
MBRP 4" turbo back, no muffler/kitty, autometer boost/pyro/trans, SCT X-cal with innovative tunes, MISC appearance, fisher MM2,

ordered: arp head studs, cooling mods, 03 turbo, cfm "small mouth" elbow, ARP head studs, BPD EGR delete

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2002 Mustang v6 vert
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