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06-17-2009, 10:00 AM
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#1
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92 5.0 GT cutting CATS off....TRUE DUALS
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Registered User
Join Date: Jun 2009
Posts: 1
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I have a 5.0 with true dual............will cutting the cats off
hurt the engine at all..........i have been told you need the cats on
this engine for BACKPRESSURE..........
i want to cut them off to get a a better sound out of my flowmasters
that are on the car now.............and will cutting the CATS off
make it a little bit louder or do cats reduce NOISE at all?
i just got this car about 2 weeks ago and I LOVE IT
i just want it to rumble a little bit louder is all.
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06-17-2009, 01:46 PM
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#2
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Re: 92 5.0 GT cutting CATS off....TRUE DUALS
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WTF^^...
Join Date: May 2003
City: Birmingham / Florence
State: Alabama
Posts: 29,722
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it wont hurt but you will need to turn off the oxygen sensors as you will get a check engine light if you remove them. It will make the car louder. I recommend buying a off road H pipe and just bolt it on, you can then go back to your stock catted pipe if you ever need to.
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Borla Stinger Polished Catback, JLT Intake, MM FLSF Connectors, MM C/C Plates, H&R Race Springs, IRS Bace, MRT Hood Struts, True Forged Mach 5 18x9 (275/35/18) 18x10 (295/35/18) wheels, Other Mods, My Pics, High Res Pics
400rwhp/380rwtq - Click mods for more info!
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06-17-2009, 02:29 PM
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#3
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Re: 92 5.0 GT cutting CATS off....TRUE DUALS
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 7,051
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What Brandon said you really don't want to run a V8 without a X or H pipe
__________________
Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
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06-17-2009, 08:20 PM
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#4
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Re: 92 5.0 GT cutting CATS off....TRUE DUALS
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Mmmm.... Catfish
Join Date: Feb 2007
City: St Louis
State: Missouri
Posts: 2,220
Thanks: 7
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Isnt there an issue with equalizing cylinder pressure if you cut the X or H out of it.
__________________
03 GT silver, BBK intake, March underdrive crank pulley, Spec Stage2 clutch, Spec lightweight flywheel, Pypes catless x-pipe, short throw shifter, Cobra wheels, Termi front bumper and hood.
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06-18-2009, 08:22 AM
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#5
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Re: 92 5.0 GT cutting CATS off....TRUE DUALS
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WTF^^...
Join Date: May 2003
City: Birmingham / Florence
State: Alabama
Posts: 29,722
Thanks: 12
Thanked 149 Times in 137 Posts
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you need a balance pipe on a mustang V8 how ever it is, you technically I dont think HAVE to have one but its a bad idea not to
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Borla Stinger Polished Catback, JLT Intake, MM FLSF Connectors, MM C/C Plates, H&R Race Springs, IRS Bace, MRT Hood Struts, True Forged Mach 5 18x9 (275/35/18) 18x10 (295/35/18) wheels, Other Mods, My Pics, High Res Pics
400rwhp/380rwtq - Click mods for more info!
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06-19-2009, 07:04 AM
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#6
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Re: 92 5.0 GT cutting CATS off....TRUE DUALS
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Bob is Good.
Join Date: Jun 2004
City: Greenville
State: Texas
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You don't need the cats. Losing them will also make the car louder. These guys are right about the balance pipe though. If you are running straight pipes, I'd really recommend buying either an H or X-pipe (or a Mac ProChamber, the best of both worlds).
The balance pipe actually increases exhaust flow by improving scavenging. |
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06-19-2009, 10:53 AM
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#7
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Re: 92 5.0 GT cutting CATS off....TRUE DUALS
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Registered User
Join Date: Jan 2005
City: Augusta
State: Georgia
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your car will be twice as loud, at 80mph i cant hear myself think
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 03 gt, sct custom tuned, k&n fipk, upr o/r x-pipe, dynomax turbo mufflers, mm c/c plates, h&r race springs, bullit rims 18x10 rear 18x9 front, 20% tint, 9 inch shorty antenna
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