What's best 3" cat?

[johnl]

That's it. Cat in the Ramerati is dead. Parts rattling around in there.

What's with these "high flow" cats?

Best one? Best price?

[johnl]

What about this one? Price is right.

http://www.performance-curve.com/index.asp?PageAction=VIEWPROD&ProdID=1060

[Birddog]

Don't buy that! It's crap! It will fall apart internally within.. Mine lasted 2 months.. A "test" pipe went in and a 3" DP after that then Il changed the E laws and it's a free for all..

If you really need a converter buy one sold through a company that has something to lose..

[mock_glh]

How about this one? :thumb:
http://www.supersprintna.com/product-exec/product_id/313/category_id/139/search_make/2/search_year/2003/search_model/100

[johnl]

How about this one? :thumb:
http://www.supersprintna.com/product-exec/product_id/313/category_id/139/search_make/2/search_year/2003/search_model/100

Gulp. $1300 ?!?

Thanks Mock?! Freaking jokester. I can buy 4 or 5 of the ceramics for that!

Blew it out at Willow - maybe - in looking at it though, it is dented/scraped from a high center driveway at my office - hauling stuff two weeks ago. I read about ceramic matrix fractures caused by that.

[mario03SRT]

I'm using a 3" Catco. I Forget the exact price, but they are on Summit or Jegs. <100.00 from my recollection.

[Turbo3Iroc]

How about this one? :thumb:
http://www.supersprintna.com/product-exec/product_id/313/category_id/139/search_make/2/search_year/2003/search_model/100

$1300 and not even street legal:lol:

I have had good luck with the Walker units. I've bought 3 of them for different cars without issue.

I had the heat shields of a Catco fall off of one in the past and swore off of them.

[1984rampage]

http://www.siliconeintakes.com/product_info.php?cPath=10&products_id=320&osCsid=4996c628922b7dcf3417bfa6334674c2

[quantum]

http://www.siliconeintakes.com/product_info.php?cPath=10&products_id=320&osCsid=4996c628922b7dcf3417bfa6334674c2

Awesome. I think I may be picking up one of these. Really, I drive the car less than 2000 miles a year which makes it "emissions exempt", but for the first inspection I need to have a "cat".

[MiniMopar]

Nice "cat". If you need it to "convert" as well, the Catco is the cheapest one around. I think I got mine for like $65. I also have a high-flow Dynomax cat that has a wider body and looks like it flows more. It was about twice the price, though.

[turbovanman²]

This one, last page.

http://www.turbo-mopar.com/forums/showthread.php?t=21773

[BadAssPerformance]

Here's the high flow 'cat' I'm putting on the new Dakota tonight :D

http://www.atpturbo.com/Merchant2/graphics/00000001/Catalog%20Images/pipe/stl004-01.jpg

[johnl]

This one, last page.

http://www.turbo-mopar.com/forums/showthread.php?t=21773

Thanks but all but one of the links are to dead ebay pages. Still that helped - put me onto metallics, dynas, high flow . . .

I'll probably just get one from Chris, he's got a $60 - $70 deal.

[turbovanman²]

Thanks but all but one of the links are to dead ebay pages. Still that helped - put me onto metallics, dynas, high flow . . .

I'll probably just get one from Chris, he's got a $60 - $70 deal.

The Dynamax link is still good and thats the one too use. I hate to cost Chris a sale but those ones are junk.

http://cgi.ebay.com/ebaymotors/59959-Magnaflow-Metallic-Catalytic-Cat-Converter-3_W0QQcmdZViewItemQQcategoryZ33629QQihZ004QQitemZ1 40183425334

[Tony Hanna]

http://www.siliconeintakes.com/product_info.php?cPath=10&products_id=320&osCsid=4996c628922b7dcf3417bfa6334674c2

Nice! That's just what I need to pass the visual here in WV.:thumb:
Have you ever ordered anything from them?

[MiniMopar]

I have used SI many times for IC plumbing stuff. They have some of the best prices around and a good selection.

[Tony Hanna]

Thanks Russ! I'll have to order one of those when I get ready to get the Sundance inspected.

[Marcus86GLHS]

Magnaflow's cats are cheap and flow well and will allow you to pass a sniffer test.

i passed Nazi CT emissions and went 12's with a stupid Magnaflow cat.

[turbovanman²]

Magnaflow's cats are cheap and flow well and will allow you to pass a sniffer test.

i passed Nazi CT emissions and went 12's with a stupid Magnaflow cat.

But they don't last, there a throw away cat, :(

[moparzrule]

I'm really surprised that silicone intakes can sell that fake cat.

[turbovanman²]

I'm really surprised that silicone intakes can sell that fake cat.

They can because of this disclaimer and I gotta admit, pretty smart thinking, :hail:

Years ago, I just tack welded on some heat shields, :eyebrows:



This product does not perform the exhaust cleansing function of a catalytic converter in any way. Use of this product on the road might violate countless laws and prevent your car from passing emissions, therefore it is recommended for offroad and show use only.

[1984rampage]

Nice! That's just what I need to pass the visual here in WV.:thumb:
Have you ever ordered anything from them?

Yep ordered a couple hundred dollars worth of silicone couplers/clamps etc. and it was as described and shipped fast!

[crazymadbastard]

Magnaflow's cats are cheap and flow well and will allow you to pass a sniffer test.

i passed Nazi CT emissions and went 12's with a stupid Magnaflow cat.


Same here, the guy poped my hood open saw some huge Ic pipes, he was like wyf?:confused2: ,passed sniffer test with that cheapo cat.

[Turbo3Iroc]

Here's the high flow 'cat' I'm putting on the new Dakota tonight :D

http://www.atpturbo.com/Merchant2/graphics/00000001/Catalog%20Images/pipe/stl004-01.jpg

Here in CT the police have been known to look under a "performance car" for a converter. Best to punch out an old one or pick up one of those fakes.

[turbovanman²]

Here in CT the police have been known to look under a "performance car" for a converter. Best to punch out an old one or pick up one of those fakes.

Wow, thats pretty sad. They don't do that here, its not in there job description, if it doesn't involve donuts or radar guns, there not interested, lol!

[BadAssPerformance]

Here in CT the police have been known to look under a "performance car" for a converter. Best to punch out an old one or pick up one of those fakes.

They dont here unless they are going thru the e-check which is now only '96 and newer :thumb: Police are supposed to have some sort of jurisdiction, but if they bring that up, I'll just inform them that I bought the vehicle that way and did not know. I dont foresee them checking tho, too many other things for them to be doing.

[Turbo3Iroc]

I was wanting to replace a cat on one of the fleet with a pipe after I got it across the sniffer. Was advised by more than one of the other car guys at work not to use the straight pipe as they have had their cars checked before.

[Turbo3Iroc]

Wow that's nice it's 96 and newer now. I wish my cars were exempt, money hungry CT goes back 25 years. I still have one test to go on my GLHS. Last one it just barely squeaked by with a brand new converter. It does have MP stage 2 though.

[turbovanman²]

Wow that's nice it's 96 and newer now. I wish my cars were exempt, money hungry CT goes back 25 years. I still have one test to go on my GLHS. Last one it just barely squeaked by with a brand new converter. It does have MP stage 2 though.

Some converters are poor, I was a smog repair center so I've seen them all. With cats, most of the time, you get what you pay for. Theres a reason OEM cats are so much money.

[Anonymous_User]

3" cat:

http://farm3.static.flickr.com/2072/1522361444_9f12d0e79d.jpg?v=0

OK, probably less than 3 inches and definitely not a high flow model!!!

[moparzrule]

Wow is that real?

[Turbo3Iroc]

Some converters are poor, I was a smog repair center so I've seen them all. With cats, most of the time, you get what you pay for. Theres a reason OEM cats are so much money.

I know there's a reason OE converters cost so much. This was a new Walker unit. But the car also has 145K on it and with the S2 LM I'm sure that makes it run richer. It was high on the HC, the others were just fine. So next time I'll prob need to get my hands on a stock LM and hope it passes.

[johnl]

don't know if it is actually true but I've heard that the CA CHP, or maybe one of the smog cop agencies have, or are developing, sniffer trucks that sit on on-ramps with sensors that sniff for and then photograph the plates of any "gross polluter" car that is detected. :( Supposedly, the truck's equipment includes a thermometer that looks for the high temp of a cat and if it doesn't see it, then that too is cause for a pic of your plate to be snapped. Cal Trans is constructing cut outs on many on ramps - parking spaces on the right side - just big enough for such a vehicle/CHP cruiser to sit. Those cut outs are good parking spots for the CHP to ambush any passing speeder too. Because many on ramps are uphill to an above grade freeway, many of the cut outs are below the grade of the freeway - meaning that a CHP sitting there cannot see the traffic up on the freeway. At one now under construction near my house, they trenched from the cut out/parking pad up hill to the top of the on ramp where the trench terminates at a new steel pole - TV/Radar?:yuck:

[MiniMopar]

Even when they were dyno testing here in IL, a TM in decent running order could pass easily with no cat. My dad gutted the cat on his '87 T1 Daytona and drove/smogged it like that for 5 years. It wasn't until he had about 200k on the motor that he finally failed. Put a cheapo cat on there and passed.

[turbovanman²]

I know there's a reason OE converters cost so much. This was a new Walker unit. But the car also has 145K on it and with the S2 LM I'm sure that makes it run richer. It was high on the HC, the others were just fine. So next time I'll prob need to get my hands on a stock LM and hope it passes.


Just stating for the masses, ;)

Also, Walker has alot of cats, tried alot of them and our Aircare test center has to, and they only make 2 good lines out of probably 5 lines they carry. With your stricter emissions, some would be very hard to make a car pass, :o



Even when they were dyno testing here in IL, a TM in decent running order could pass easily with no cat. My dad gutted the cat on his '87 T1 Daytona and drove/smogged it like that for 5 years. It wasn't until he had about 200k on the motor that he finally failed. Put a cheapo cat on there and passed.

I tried with no cat and the NOx is out of control without a cat, I would pass CO and HC but fail NOx badly.

[MiniMopar]

They didn't check NOx here. Just CO and HC. The CSX passed with no cat too, though the HC was close with the ND cal I had at the time. Now, as JT said, it's only '96 and up.

[MiniMopar]

They dont here unless they are going thru the e-check which is now only '96 and newer :thumb: Police are supposed to have some sort of jurisdiction, but if they bring that up, I'll just inform them that I bought the vehicle that way and did not know. I dont foresee them checking tho, too many other things for them to be doing.

Anyone with a nose for it can smell when a car is not running a cat. So if you run into such a cop you could have a problem. But I have never heard of anyone in Chitown getting a ticket for no cat. Loud exhaust maybe.

Yeah the e-check guys have mirrors, but I can only remember one time that they actually looked.

[turbovanman²]

Anyone with a nose for it can smell when a car is not running a cat. So if you run into such a cop you could have a problem. But I have never heard of anyone in Chitown getting a ticket for no cat. Loud exhaust maybe.

Yeah the e-check guys have mirrors, but I can only remember one time that they actually looked.

Yep, it has a different odour.

[quantum]

http://www.siliconeintakes.com/product_info.php?cPath=10&products_id=320&osCsid=4996c628922b7dcf3417bfa6334674c2

I just ordered one of these. I'll post back up with pics when I get it and install it. Hopefully is will be good enough for a visual inspection.

[Polygon]

Awesome. I think I may be picking up one of these. Really, I drive the car less than 2000 miles a year which makes it "emissions exempt", but for the first inspection I need to have a "cat".

How does that work? Is that a state by state thing? If I can do that here I'm welding in a test pipe.

[quantum]

Yeah state by state. Here in PA I think anything under 5000 miles a year worth of driving is emissions exempt, but you need to pass the first inspection of course.