Hi guys,

I set my eyes on a 3" Universal Fit Catco that's only 14" long. Yes, I know I have to weld it, it's a custom exhaust anyway. Yes, I have a 3" exhaust with the regular 2" manifolds. Yes, that is mighty stupid of me.

I really really really like the 14" length, because it's so short that it will probably flow fly numbers and I really don't want anything larger for my pansy 305.

Does the 14" long 3" Universal Fit (CTO-6007) have an AIR tube? I really want the AIR tube because the CA visual inspection ***** will probably bitch & moan about it and, besides, AIR reduces the #s significantly?

Any suggestions?

Any of you have the 3" CTO-6007?

On the Summit website there is a picture with the AIR tube but nowhere in the description does it say it actually has one.

 

Yes, it has the A.I.R. tube.

The length has absolutely nothing to do with flow. The body of the universal and the body of the one that bolts in directly to a TPI single-cat system are exactly the same. The only difference is how it connects into the system.

 

OK, sorry to bother you again, just to double check, so you have exactly the same catalytic converter?

The one I was looking at is:

From summitracing.com:
CTO-6007: Length 14", diameter 3"

This 6000 series converter can be used as a two way, three way, or three way with air when the engine is 5.9L or smaller and the vehicle test weight is 5,500 lbs. or less.
As a three-way 2-1 replacement on vehicles with 5.8L engines and a test weight of 5,000 lbs. or less, except California.
Etc. Etc.

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There's the 9007 (16.5"), where they say explicitly it has an air tube, but costs $99, and the 2607 (16.5") where they say it has an air tube and it costs $80 and an 8007(16.5") where it doesn't say it and I don't see it on the picture and it costs $95.

Now yes you're right, these look like they all have the same body length, but some of the higher-numbered ones(like 9007) are recommended for bigger engines. I was still assuming that my 6007 ($50, 14") has the smallest body.

Would you agree that the body size has to do with flow, given that they are of the same design inside (same manufacturer)?

 

I just ordered the CTO-2607. I saw a website of someone with the 6007 (the 14" one) and there was no AIR pipe anywhere on the picture so 2607 is probably the cheapest considering there is welding to do anyway?

 

While you probably should have it just for the visual sake from what ive been told is that the AIR or smog pump is a big waste of hardware and does very little towards lowering emissions.....someone please correct me if im wrong.

 

what is the length of the stock cat from an L03?
does 22" sound correct?

 

You're wrong. The extra oxygen aids the cat in its work greatly. With a good cat and a leaned-out fuel system, you can get by the sniffer w/o A.I.R., but that doesn't mean it doesn't help.

I don't remember the p/n of the universal I got. I haven't seen a universal w/o the A.I.R. tube (but I haven't seen everything).

I've learned not to rely on the pictures on the Summit website for any technical information.

 

Heh, exactly. That's why I searched for 6007 on the web and found a picture of it on a car (on some TransAm, and there was no sight of AIR pipe).

And yes, AIR does help, I am pretty positive that one of the reasons I failed emissions in Chicago once was because it was not functional. Besides, it dilutes exhaust with extra air in the exhaust stream which automatically makes your emissions have less parts per million, so it's a no brainer.

And yes, I do need it for the visuals. 22" long stock catalytic converter sounds about right to me.