Was pulled over by the 5.0 today and looked under my car and noticed that I didn't have a cat. So now I am looking for the highest flow cat that would work with a 3 inch pipe, and I don't need the hose that comes off it either.
This situation sucks
Damn cops!

 

Do you need to get it sniffed, or just looked at?

You could always pull out your "test pipe" and get some junkyard catalytic heat shields, maybe the core too, and just drill it out, and weld all that onto your test pipe.

Then it would look like a normal cat to the naked eye, but really be there for decoreation.

 

You can get a 3" universal Catco cat without an air tube from summit for about $60. I doubt you'd notice a difference in performance... they probably rob 1-2 Hp max.

 

Do you have any part numbers

 

This is the one I'm running... It's a little short and I had to add a 6" length of 3" pipe to bridge the gap, but it's decent for a cheap cat.

CTO-6907

http://store.summitracing.com/partde...0&autoview=sku

 

The problem with running a cat, is that your car will smell like every other honda on the road. You want that un-cooked muscle car smell out the pipes!

 

Adam, we dont need to see your huge sig every post, please.

Second, cats are required by law on street cars in all 50 states, and yes they do provide a valuable service in cleaning up the air we breathe. That "uncooked muscle car smell" is raw gasoline and carbon monoxide, which will kill you if you breathe too much of it.

 

Is the cat co a high flow cat. Because I am looking for the highest flow one out there for my car

 

Catco hi-flow 3" in & out p/n cto-9118

 

Yes it's a high flow cat.

That's the stock replacement 3" with an air tube... he doesn't want an airtube, so it's gonna have to be a universal fit.

 

Is the catco 6907 going to be a high flow. it didn't say anything about it on summit's website

 

All cat converters are made the same now.

California won't let them put high flow on the box anymore.

 

It comes with a cap on it. Don't want to hook up A.I.R., keep the cap on.

"Universal" almost always equates to "univerally more expensive than direct-fit by the time you get it installed", especially if you have to make a trip to an exhaust shop for any of the installation.

 

If you are that worried about the flow you can get a used cat and gut it. NO restriction at all.....

 

All aftermarket cats are "high-flow". And today's aftermarket cats are all "no restriction" either, so you can have clean air and horsepower too.

 

Point taken, but around here they usually won't pass your car at inspection time if you have an air tube on a cat and no smog pump or line running to it. If you've got some 3" pipe laying around and an $8 band clamp it's pretty easy to fit a universal cat on these exhausts.

 

what about a gutted cat? Thats what im running?

 

Well you will not pass any emission check and you lost 20 hp with a gutted cat.

 

What about a test pipe?
And illl pass emissions check it only takes an extra $15 20

 

You dont lose 20 hp with a high flow cat do you?

When I go to the track I will have 2 cutouts on each side of the y pipe, so I dont think it would matter that much

 

isnt a gutted cat just as good as a hiflow cat?
I mean since there is nothing insise the gutted?

 

Does anyone know how much power you would lose with a high flow cat.

 

Nothing that you would notice...

 

Thats what i was thinking

 

About 1-2 HP... versus a straight pipe. A gutted cat adds turbulence to the system along with the increased flow and probably doesn't outperform a high flow cat in most cases.

 

random technology are top of the line and flow the best, but they are like $400, catco cats are ok but not top of the line, a dynomax would also be pretty decent for the price

 

Ok Mr. Expert, where do you rank Magnaflow cats then?

 

LMAO

 

I've been told that there is really no such thing as a "high flow" cat. They're all made to meet spec. One company doesn't pack it full of bullsh!t and make a "less flowing" cat lol. Yes, even the almighty magnaflow cats are made to meet spec. As far as the story about getting pulled over, your car must have reaked of gasoline or been louder than hell because I live near Minneapolis, not too far from Wisconsin, and I can't imagine a cop looking under my car or even talking about emissions.