Catted X and Emissions

4.6andSlicks · Aug 31, 2006

Has anyone out there passed Connecticut emissions test with a catted X-Pipe? I have an '01 Cobra and was looking on the Magnaflow website and even some of their catted X-Pipes said "Off Road Only". What's up with that? I haven't purchased yet but I was going to go with SLP because of price. Any difference in the SLP X and the Magnaflow X?

stangGT97 · Aug 31, 2006

Theres not much difference between the two, mostly just price. The SLP pipe is modular in case you end up installing their LT headers. I can pass MA emissions w/ my Bassani catted X, so I don't see why you couldn't pass with the SLP. They don't use the sniffer in my state, just scan for codes to see what the rear O2 sensors are reading.

RGGT · Aug 31, 2006

I just passed CT emmisions with my 99 GT I have a MRT ss H pipe on it catted and it was no problem. I was worried though because my old pipe have a total of six cats. I think you will be go to go though.

mattmoto441 · Aug 31, 2006

i have the BBK cated H and it says emissions legal

War_Hawk · Aug 31, 2006

In CT you cant have a "Check engine light" for starters (off road pipe will trip the check engine unless you get the car's computer reprogrammed or the MILs). Also, becuase you have a 2001 your car wont be put onto rollers. they connect to your car's computer for 5 mins or so and that is it.

Pearl02 · Aug 31, 2006

RGGT said:
I just passed CT emmisions with my 99 GT I have a MRT ss H pipe on it catted and it was no problem. I was worried though because my old pipe have a total of six cats. I think you will be go to go though.

Sorry to hijack this thread. RGGT how do you like your MRT H pipe? I'm looking at the same one. I've debated between the catted X vrs catted H pipes. I like the muscle car sound better. I know the X will yield more HP's but I'm looking for a more aggressive sound. Thanks Pearl02. Oh, welcome to the board!

Saleen4971 · Aug 31, 2006

any catted x/h pipe should pass emissions sniffer tests (if your state still uses a sniffer for OBDII cars) i dont think it is legal to sell a catted pipe if the cat is nto up to federal standards

03ghoststang · Aug 31, 2006

it all depends on where you live here in Cali by law you have to have the stock H-pipe on for emissions testing BUT if you know someone who will look away at that its ok as long as it passes with the catted pipe

CobraRed_96_GT · Aug 31, 2006

4.6andSlicks said:
Has anyone out there passed Connecticut emissions test with a catted X-Pipe? I have an '01 Cobra and was looking on the Magnaflow website and even some of their catted X-Pipes said "Off Road Only". What's up with that? I haven't purchased yet but I was going to go with SLP because of price. Any difference in the SLP X and the Magnaflow X?

The SLP ( i have the high-flow catted X) hangs down lower and will scrape any speed bump it ur car is lowered. IF not lowered it may scrape on the worst of speed bumps. But gains difference: the magna gets like 1-2 tops hp more but the slp has 1 ft.lb.of torque on it on stock set ups: really nothing to consider since magna costs so much more.

03ghoststang said:
it all depends on where you live here in Cali by law you have to have the stock H-pipe on for emissions testing BUT if you know someone who will look away at that its ok as long as it passes with the catted pipe

he speaks the truth. But i just put my old H on to pass just in case cuz my cars isnt exactly sotck other than exhaust.

Catted X and Emissions

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