Catted Mac Hpipe+Emission

Twista

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Would this setup most likly pass a emission test? My car has 6 cats on it normally and this midpipe woould only have 2 cats. Anyone else running this midpipe and passing emission with no problems?

thanks
 

Twista

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Matt94GT said:
do you run stock cats, smog, and rest of your emmissions still?

my car is 100% stock right now (97 gt) I want to get a MAC catted H pipe and flowmasters, but i wanna stay emission legal.
 

94gtstang50

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Twista said:
Would this setup most likly pass a emission test? My car has 6 cats on it normally and this midpipe woould only have 2 cats. Anyone else running this midpipe and passing emission with no problems?

thanks

6 cats? What kind of car do you have? My 94 has two cats and two resonators on the stock h-pipe. As far as passing inspection with the mac catted H, just run low ocatne and I heard something about two bottles of iso heet helping to get the car running a little leaner and cleaner. Where are you from, b/c some states will not pass you with an aftermarket cat, New Jersey is one example of that.
 

Lightning Struck

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94gtstang50 said:
Twista said:
Would this setup most likly pass a emission test? My car has 6 cats on it normally and this midpipe woould only have 2 cats. Anyone else running this midpipe and passing emission with no problems?

thanks

6 cats? What kind of car do you have? My 94 has two cats and two resonators on the stock h-pipe. As far as passing inspection with the mac catted H, just run low ocatne and I heard something about two bottles of iso heet helping to get the car running a little leaner and cleaner. Where are you from, b/c some states will not pass you with an aftermarket cat, New Jersey is one example of that.

I was wondering about the 6 cats also ???
 

Twista

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Snakebit said:
94gtstang50 said:
Twista said:
Would this setup most likly pass a emission test? My car has 6 cats on it normally and this midpipe woould only have 2 cats. Anyone else running this midpipe and passing emission with no problems?

thanks

6 cats? What kind of car do you have? My 94 has two cats and two resonators on the stock h-pipe. As far as passing inspection with the mac catted H, just run low ocatne and I heard something about two bottles of iso heet helping to get the car running a little leaner and cleaner. Where are you from, b/c some states will not pass you with an aftermarket cat, New Jersey is one example of that.

I was wondering about the 6 cats also ???


well ..
mine has 4 cats and 2 resonators? whatever a resonator is lol. Im from illinois btw.
hpip7.jpg
 

94gtstang50

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The first "things" after the exhaust mainfold should be the resonators, and the other four are the cats. Not sure about how strict they are in illinois though.
 

94gtstang50

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the first two things were empty on my stock h and I was told that they were resonator pipes. They have some sort of weird engineering purpose.
 

NITROUSINJECTED

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if you are worried about getting caught buy the police just gut your cats out pretty easy to do
 

95CALI-5.0

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With an aftermarket catted H-Pipe in CA you may pass the sniffer test :dancing6: but will fail the visual. :police:
 

94gtstang50

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I gutted my cats last week (they were clogged b/c of a rich a/f mixture) and have inspection this week, any tips on how to pass the sniffer?
 

STNG_96

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I cant even count how many times this has been said on this entire site. 96-98 cars came with SIX, once again, SIX cats, and 94-95 cars came with FOUR, count them, FOUR cats. And as previously stated, whether or not yo0u pass will depend on what state you live in.
 

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