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03-17-2009, 07:28 PM
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forty-six & 2
 
Join Date: Jan 2005
Location: NE Indiana
Posts: 508
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Aftermarket H to factory catback
I searched and gave up........
Anyone hook up an aftermarket H to the factory catback? I know the factory pipes are 2.25" right and the aftermarket midpipes are 2.5", so I was wondering what would be needed to make it work. I have a Mac offroad H coming this week and have Borla ProXS mufflers welded into the factory rear pipes, and just trying to get a head start on the install. I'm not sure what to expect on how the Mac H will connect to the factory rear pipes.
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tom281 Current: 2003 Mach 1: black on black auto Basic bolt ons Previous: 2006 Vista Blue GT 11.74 @ 119, 3880lbs 450hp/450tq My keeper: '92 GT Convertible Emerald Green w/ White Lthr & Top Original Owner |
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03-17-2009, 09:06 PM
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mustangs rule
 
Join Date: Jan 2007
Location: Charlotte, NC
Posts: 1,123
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Re: Aftermarket H to factory catback
it'll bolt right on. no problem.
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03-17-2009, 09:09 PM
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forty-six & 2
Join Date: Jan 2005
Location: NE Indiana
Posts: 508
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Re: Aftermarket H to factory catback
Really? Great, thanks.
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tom281 Current: 2003 Mach 1: black on black auto Basic bolt ons Previous: 2006 Vista Blue GT 11.74 @ 119, 3880lbs 450hp/450tq My keeper: '92 GT Convertible Emerald Green w/ White Lthr & Top Original Owner |
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03-17-2009, 09:25 PM
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Torque wins!
 
Join Date: Dec 2004
Location: Florida
Posts: 13,167
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Re: Aftermarket H to factory catback
Yep!
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The ORIGINAL Project R build thread is back ! 5.4 32V NA Streetable 404/387 26.56 MPG "I don't like repeat offenders, I like DEAD offenders" Ted Nugent "A big engine hardly working is more efficient than a little engine screaming its head off" Jay Leno |
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03-18-2009, 08:09 AM
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Registered User
Join Date: Aug 2005
Location: Greenville, SC
Posts: 1,150
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Re: Aftermarket H to factory catback
I bolted an MRT H-pipe to my stock Cobra cat-back with no problems. It sounded pretty good, a bit louder than stock but with a good tone and no popping on decelleration.
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03-18-2009, 05:35 PM
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forty-six & 2
Join Date: Jan 2005
Location: NE Indiana
Posts: 508
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Re: Aftermarket H to factory catback
Well decided to start the install tonight, planning on having the Mac piece delivered tomorrow.
-front of car on rhyno ramps: 2 minutes -back of car in the air and on jack stands: 5 minutes -breaking loose factory manifold bolts: 35 minutes LOL! what a PITA those were, but they're off. Now for the O2 plugs, hahahaa!
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tom281 Current: 2003 Mach 1: black on black auto Basic bolt ons Previous: 2006 Vista Blue GT 11.74 @ 119, 3880lbs 450hp/450tq My keeper: '92 GT Convertible Emerald Green w/ White Lthr & Top Original Owner |
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03-19-2009, 08:29 PM
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forty-six & 2
Join Date: Jan 2005
Location: NE Indiana
Posts: 508
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Re: Aftermarket H to factory catback
Install is done, no problems at the manifolds, however I have a small leak where the new midpipe meets the factory axle pipes. Can't hear it leak over the noise of the mufflers, but still it's there...... otherwise no problems.
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tom281 Current: 2003 Mach 1: black on black auto Basic bolt ons Previous: 2006 Vista Blue GT 11.74 @ 119, 3880lbs 450hp/450tq My keeper: '92 GT Convertible Emerald Green w/ White Lthr & Top Original Owner |
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