Has anybody tried the OBX cat? Uhh should I go with it or get the Autozone one? I'm very short of cash and I need a cat to pass inspection in NJ and since I'm there I'd like to use something better than what Autozone is offering me, but not trying to spend over $100 for a cat that I will use temporarily. When I get a nice exhaust I'll invest on a more fancy cat.

 

OBX cat?

I be suprised if it's a real cat. Probably just a test pipe...which isn't going to help you pass anything.

What happened to your stock one?

 

I was thinking about it. Looks like a test pipe though. Didn't see any catalyst from the side pictures

 

my oe cat is very old and my inspection fail sheet show the nox is higher than where they think it should be, so I searched and the cat could be the one responsible for it

 

NOX i would try to clean out the EGR Valve and Ports.. Your CAT might still be ok.

 

how hard is it to change the egr valve? is it plug and play kinda thing

 

is the egr the valve with a hose connected to the intake manifold?

 

The egr sits right on the IM. 2 bolts secure it down. Loosen them. Be careful with the lines. Do a search, several people have taken the egr off. I know theres a write up somewhere.

 

http://92lude.com/egr_mod.htm

This should give you a general idea.

 

carsound cats are pretty cheap. i get mine from heel-toe auto.

 

Thanks guys, I'm going to change it to see if the nox goes down when I take my car back to inspection, I first thought it was the catalytic, but after reading what the egr does it makes a lot of sense that that could be the problem. thanks all of you for the help

 

Anyone ever used an Eastern brand cat?

 

I have an OBX cat becuase i needed an exhaust pretty quick so i bought one because it was cheap. Its actually just a resonator, and it made my car so much louder but its holding up pretty well.

 

Just ordered a Carsound cat from this guy off eBay. Amazing deal!

2.25" http://cgi.ebay.com/ebaymotors...wItem

2.5" http://cgi.ebay.com/ebaymotors...wItem

 

Catco High Flow Cat here...couldn't be happier.

 

How about taking a drive over to Napa, buying a bottle of Sea Foam for $6.
1. With engine warm, slowly pour 1/3 to 1/2 pint through carburetor or throttle body throat. (If vehicle is port injected slowly pour SEA FOAM through direct manifold vacuum line that will feed all cylinders, possible sources are P.C.V. valve or brake booster line.) This will pull SEA FOAM down on top of the pistons and to the back of the intake valves to dissolve carbon. Turn ignition off. Restart engine after 5 minutes. If severe carbon build up is apparent, use more Sea Foam as previously directed. Make sure exhaust is well ventilated when using Sea Foam in these various ways as fumes will be extreme for a short time.
2. Pour 1/3 to 1/2 pint into oil crank case to clean rings, lifters, dirty parts and remove moisture.
3. Pour 1/3 to 1 full pint into fuel tank to clean injectors, carburetor jets, fuel lines and remove moisture.
4. Immediate Results: Smoother idle, increased R.P.M.'s better throttle response and improved performance. See label on can for detailed results for use in each area.

For Peak Performance, Use SEA FOAM Every 2,000 to 5,000 Miles

* A 100% pure petroleum product for use in all gasoline and diesel type engines, both 2 and 4 cycle. OXYGEN SENSOR SAFE.
* Cleans dirty engine parts internally by removing harmful gums, varnish and carbon. WORKS AND PERFORMS INSTANTLY.
* Removes moisture from oil crankcases and fuel tanks.
* Stabilizes and conditions fuels. Use for engine storage.
* Cure hesitations, stalls, pings and rough idle due to carbon buildup.
* Helps pass emissions test. EPA Registered.

When Used Thru Injection or Carburetor

* Cleans carbon build up
* Cleans intake valves and pistons
* Gives smoother idle
* Cleans catalytic converter odors
* Cures hesitations and pings
* Restores power and pickup
* With warm engine running, SLOWLY poor 1/2 pint through carburator, throttle body or direct manifold vacuum line that will feed ALL CYLINDERS. Possible sources are P.C.V. valve or brake booster line. Turn ignition off. Restart engine after 5 minutes. Be sure exhaust is well ventilated. Fumes will be extreme for a short period of time.
* For use in injector cleaning machines, use 50% SEA FOAM and 50% fuel.
* Fill diesel filters with SEA FOAM to clean injectors fast.

When Added to Crankcase (Oil)

1. Frees sticky lifters and rings
2. Increases R.P.M.'s vacuum and compression
3. Cleans dirty parts
4. Removes moisture
5. Cleans PCV valve systems

One pint treats 10 quarts of oil (avg. 1 1/2 ounce per quart).

When Added to Fuel Tank

* Cleans fuel injectors and carburetor jets
* Cleans carbon as you drive
* Lubricates upper cylinders
* De-ices and removes moisture
* Diesel full conditioner and anti gel
* Stabilizes fuel

One pint treats 8-25 gallons of fuel (average 1 ounce per gallon).

http://www.seafoamsales.com/motorTuneUpTechGas.htm

 

Gonna try that tomorrow. Can't wait to smoke up the surrounding area