Poll for what i should do keep the cats or ditch em

bkg97gt · December 25th, 2008, 04:18 PM

i got my flowmaster 40's, i have a pypes xpipe with hiflow cats on it. so keep the cats or ditch em? if i ditch em we have emissons testing here, but i got a set of MIL eliminators so thats not a huge deal.

1FUN4RD · December 25th, 2008, 04:38 PM

Originally Posted by bkg97gt

i got my flowmaster 40's, i have a pypes xpipe with hiflow cats on it. so keep the cats or ditch em? if i ditch em we have emissons testing here, but i got a set of MIL eliminators so thats not a huge deal.

Keep the high flow cats. But if you ditch them. I'll take them

burlingtonNC98GT · December 25th, 2008, 05:52 PM

ditch em if u can get away with emissions

Lefty · December 25th, 2008, 08:40 PM

03SonicBoom · December 25th, 2008, 08:47 PM

I thought the power difference between high flow cats and no cats was negligible. If it's that way, why wouldn't you have them? I mean, why drive illegal and have worse emissions for no gains?

Smoothgrandmama · December 25th, 2008, 08:55 PM

Keep em

Junk96GT · December 25th, 2008, 10:08 PM

Originally Posted by 03SonicBoom

I thought the power difference between high flow cats and no cats was negligible. If it's that way, why wouldn't you have them? I mean, why drive illegal and have worse emissions for no gains?

Because it sounds AMAZING and cats are expensive.

MIL eliminators will get you passed the emissions test but where you will get screwed is the visual. Maybe if you hollow out your cats or just make it look like it has cats on.

Then get 2 glasspacks dumped before the axle everyone of your neighbors will love you.

1FUN4RD · December 25th, 2008, 10:11 PM

Originally Posted by Junk96GT

Because it sounds AMAZING and cats are expensive.

MIL eliminators will get you passed the emissions test but where you will get screwed is the visual. Maybe if you hollow out your cats or just make it look like it has cats on.

Then get 2 glasspacks dumped before the axle everyone of your neighbors will love you.

Read the 1st post.. He already has the high flow cats.. So price is now not relivent

Smoothgrandmama · December 25th, 2008, 10:13 PM

I like the sound of high flow cats

svtkidd23 · December 25th, 2008, 10:19 PM

off road x!

mustangracer2g · December 25th, 2008, 11:52 PM

i'd def keep them, just in case. The gains of removing them are so small that its not important. You should also consider about gettin screwed by a visual or even the sniffer test if they use that there.

Junk96GT · December 26th, 2008, 03:25 AM

Originally Posted by 1FUN4RD

Read the 1st post.. He already has the high flow cats.. So price is now not relivent

Even if there is a half a horse power gain it usually sounds better and even if he has the cats he can sell them therefore pretty much getting a bonus for taking them off. Especially with Flows, they are quiet with cats.

97mustanggt · December 26th, 2008, 12:05 PM

i didnt know that by adding mil eliminators u can pass a smog test...i always thought they like mesaured the amount of gasses coming outta ur pipes...

NO_PI_NO_POWER · December 26th, 2008, 01:16 PM

There's no way mine would pass. Thank you emissions exempt weld county.

97GT4.6 · December 26th, 2008, 03:19 PM

HAHA weld county, larimer county, thanks. im glad we don't have to pass em or we'd be screwed

Junk96GT · December 26th, 2008, 06:19 PM

Originally Posted by 97mustanggt

i didnt know that by adding mil eliminators u can pass a smog test...i always thought they like mesaured the amount of gasses coming outta ur pipes...

MIL eliminators will trick your rear o2 sensors to think that the cats are working. Most places that do emissions just plug a diagnostic tool into your OBD-II port on OBD-II cars and no codes come up because the MIL eliminators are in place and no error codes = a pass until they look under the car and don't see any cats.

bkg97gt · December 27th, 2008, 12:00 AM

well i wouldnt worry about visual or sniffer. my friend does my inspection so he justy plugs it up. the car never even leaves the ground.He doesnt even use the sniffer in the tailpipe either

Junk96GT · December 27th, 2008, 03:25 AM

Originally Posted by bkg97gt

well i wouldnt worry about visual or sniffer. my friend does my inspection so he justy plugs it up. the car never even leaves the ground.He doesnt even use the sniffer in the tailpipe either

Well then I'd definitely take the cats off and sell them. Make some money, it'll sound better, may gain 1hp, save weight, etc etc..

Yeah I don't think anyone uses the sniffer on OBD-II cars.

97mustanggt · December 27th, 2008, 12:26 PM

so all i need is 2 mil for my front o2 sesors....and i pass unless they give me a visual inspection...

bkg97gt · December 27th, 2008, 02:10 PM

rear o2 sensors. the fron measures air going in. the rear measures the air going out and the efficiency of the cat. I recomend the ones from Pypes they splice into the factory wires and you keep your old o2 sensors pluged in.

December 25th, 2008, 04:18 PM	#1
bkg97gt Regular Join Date: May 2008 Posts: 202 iTrader: 2 reviews	Poll for what i should do keep the cats or ditch em i got my flowmaster 40's, i have a pypes xpipe with hiflow cats on it. so keep the cats or ditch em? if i ditch em we have emissons testing here, but i got a set of MIL eliminators so thats not a huge deal.

December 25th, 2008, 05:52 PM	#3
burlingtonNC98GT Regular 1998 Mustang GT Join Date: Jan 2007 Location: Burlington, NC Posts: 217 iTrader: 0 reviews	ditch em if u can get away with emissions __________________ 1998 GT PI intake PI cams bbk cai flowmaster 40's catback bbk x-pipe w/ cats march pulleys RAM clutch Steeda Tri-axe

December 25th, 2008, 08:40 PM	#4
Lefty Resident DJ '01 Cobra Vert. Join Date: Jun 2007 Location: Mechanicsburg, PA Posts: 28,699 iTrader: 12 reviews	__________________ 2008 Acura TL Type-S (the daily) 2006 Yamaha R6 50th Anniversary Edition (the other toy)

December 25th, 2008, 08:47 PM	#5
03SonicBoom Moderator 2003 Grand Cherokee Join Date: Jul 2008 Location: Indiana Posts: 6,617 iTrader: 0 reviews	I thought the power difference between high flow cats and no cats was negligible. If it's that way, why wouldn't you have them? I mean, why drive illegal and have worse emissions for no gains? __________________

December 25th, 2008, 08:55 PM	#6
Smoothgrandmama Assistant to the Manager 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,156 iTrader: 6 reviews	Keep em __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal, 101Fng

December 25th, 2008, 10:13 PM	#9
Smoothgrandmama Assistant to the Manager 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,156 iTrader: 6 reviews	I like the sound of high flow cats __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal, 101Fng

December 25th, 2008, 11:52 PM	#11
mustangracer2g Regular 1997 Mustang GT not as slow... PI swapped :-) Join Date: May 2008 Location: San Diego, Ca Posts: 275 iTrader: 0 reviews	i'd def keep them, just in case. The gains of removing them are so small that its not important. You should also consider about gettin screwed by a visual or even the sniffer test if they use that there. __________________ If there's one thing in life you should never take for granted its the ability to drive fast when given the hp to. (PI engine swapped now, so i can go just a lil bit faster haha) oh yeah, and why the hell do imports always try to race me?!

December 26th, 2008, 12:05 PM	#13
97mustanggt Hardcore Enthusiast 97GT & 97Snake & 00L T.B.A Join Date: Aug 2008 Location: Richgrove, Ca Posts: 2,183 iTrader: 0 reviews	i didnt know that by adding mil eliminators u can pass a smog test...i always thought they like mesaured the amount of gasses coming outta ur pipes... __________________ 97 Cobra & 00 Lightning Beauty & The Beast I rev next to hybrids so they can hear me kill the environment MM Cobra Club Member #77 MM Lightning Club Founder

December 26th, 2008, 01:16 PM	#14
NO_PI_NO_POWER Granny Shifter 1997 Mustang GT 12.297@113.47 Join Date: Jul 2008 Location: Greeley, CO Posts: 752 iTrader: 0 reviews	There's no way mine would pass. Thank you emissions exempt weld county. __________________ 1997 GT 2.6L Kenne Bell Build Thread 1989 LX

December 26th, 2008, 03:19 PM	#15
97GT4.6 Hardcore Enthusiast 97 GT 14.2@99.8 @ 4800 ft Join Date: Oct 2007 Location: Fort Collins and Pueblo, Colorado Posts: 2,347 iTrader: 1 reviews	HAHA weld county, larimer county, thanks. im glad we don't have to pass em or we'd be screwed __________________ Cammed 2v Built By MustangMatt More mods than times your daughter has slept around

December 27th, 2008, 12:00 AM	#17
bkg97gt Regular Join Date: May 2008 Posts: 202 iTrader: 2 reviews	well i wouldnt worry about visual or sniffer. my friend does my inspection so he justy plugs it up. the car never even leaves the ground.He doesnt even use the sniffer in the tailpipe either

December 27th, 2008, 12:26 PM	#19
97mustanggt Hardcore Enthusiast 97GT & 97Snake & 00L T.B.A Join Date: Aug 2008 Location: Richgrove, Ca Posts: 2,183 iTrader: 0 reviews	so all i need is 2 mil for my front o2 sesors....and i pass unless they give me a visual inspection... __________________ 97 Cobra & 00 Lightning Beauty & The Beast I rev next to hybrids so they can hear me kill the environment MM Cobra Club Member #77 MM Lightning Club Founder

December 27th, 2008, 02:10 PM	#20
bkg97gt Regular Join Date: May 2008 Posts: 202 iTrader: 2 reviews	rear o2 sensors. the fron measures air going in. the rear measures the air going out and the efficiency of the cat. I recomend the ones from Pypes they splice into the factory wires and you keep your old o2 sensors pluged in.

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