As it sit now, all my car has is headers and a Y pipe. I plan to get the SLP loudmouth, and I'm gonna have it installed professionally. last, I no longer have the AIR tubes. No AIR tubes, no factory Y pipe or Intermediate pipe. My question is do I simply need a universal cat that has the correct size inlet and outlet? That should be a simple install for an exhaust shop, right?

What kind of headers do you have? The new y-pipe should properly work with a direct fit 3 inch cat for your car. A new catback would work with it also.

You can go the universal route too. Might be better since the cats are cheaper. Thats what I did since I had a shop install my catback. I just got a $40 magnaflow cat and they just welded it to the I pipe and y-pipe. It was easy for them

I have the SLP Y pipe on SLP headers.

I fiure no need to buy the SLP install kit for the loudmouth, I'll just have the shop make any minor adjustments needed. Heck, that's stuff pretty easy for them, and they can do the cat at the same time.

They will be able to add that cat at the same time. They may have to relocate it depending on how they decide to allign the 4th gen cak back with the 3rd get cat location. I had a shop put my catco cat on to mate my Hooker cat-back to my Blowtech y-pipe. I had them weld a reducer on the end of it since the y-pipe is on 2.5" and the cat and catback are 3". You will most likely may a little more because of the extra fab work but it is completely doable. They will most likely cut off a large section of I-pipe on the loudmouth (the part that makes a 90* for 4th geb cat location) and weld up a new xssection of pipe. The 3rd and 4th gen I-pipes are pretty much in the same location with the exception of the 90* bend right before the cat. I hope this helps and that I didn't confuse you.

If you have SLP headers and Y-pipe just buy the SLP slip fit connector and you will have no problem fitting a direct fit 3" Catco cat.

Actually, check out Ebay for 3" universal fit Catco..they're around $30 or so and should fit perfect with a butt joint band clamp from Dynomax..no welding or anything...then just have the loudmouth installed to fit with the same 3" clamp on the outlet side so the whole thing can come right out if you need it to. If you want a direct fit Catco, I may be doing what I just described on my Iroc and would be willing to part with my direct fit cat. It's only 5 years old or so, but I can understand if you want all new stuff under there...you the bling bling man now..

The reason I bring this idea up is that a direct fit cat is about $130 from Summit, and the universals are only $30 or so and I can't justify the difference, especially if you're doing a semi custom setup anyway.

Link:
http://cgi.ebay.com/ebaymotors/ws/eB...category=33629

Ed

Thanks Ed.

Whatever I chose, I want it all new.......just because!

...yeah, but it would be just as easy for the exhaust shop, and probably cheaper than the SLP piece.

Do you have a pic of the loudmouth I pipe? Is it on the SLP site? I'm curious as to how it will attach to the cat. I will be installing a Borla and will have to have an adapter pipe made to go from the outlet of the cat to the Borla I pipe as it doesn't go all th way to it. It kinda stops right before the trans crossmember.


Ed

From what I understand, it's very close to being a direct fit, WITH the SLP adapter. I think the issue was more with hangers, etc.

I don't have a pic, but I've seen a few....next time I get a minute I'll do some digging.

Are you talking about this adapter?

http://www.slponline.com/view_produc...&SHOWEMAIL=Off

If so, check your local muffler shops. Unless you MUST have the stainless piece from SLP (I bought it and had it coated with my SLPs..), my local shop has that same piece in regular steel for $12. LMK if you'd like me to grab you one..


Ed

Why have everything Stainless and a important connector made of standard type steel (that will rust). Unless you don't care.

That's why mine IS stainless...I know that some guys won't justify the $35 for the SLP adapter and will want to go cheap. I doubt Chris will do that tho...


Ed

I'm gonna take the car to the exhaust guy, hand him the SLP LM system, a CC, and tell him to install it, and if he needs to fab up any small adapter pieces, I'll have him use stainless.

....My only point was that I wasn't going to buy "SLP" brand pipe, when the exhaust guy probably has the same pipe in the scrap bin.

IF YOU HAVE TO PASS EMMISIONS DONT GET A CATCO. I HAD ONE ON MINE AND FAILED. SWAPPED CATS AND PASSED. IT ONLY HAD 200-300 MILES ON IT

Don't blame the Cat, you probably have a dirty engine that just making it at testing. 5sp 350 without any emission controls on it, is my guess. So don't blame the Catco Cat.

not a dirty motor. its a brand new motor. and if you read what i posted you will see that i passed after i replaced the cat that had only 200-300 miles

Still stand by my statement. Even if it was brand new engine what emission controls did you have??? Changing Cats did not solve your problem you just got lucky at testing. No 350 5sp is going to pass a smog test without some emissions controls on it, and I still say you removed everything.

all the smog equiptment was hooked up. it was the cat. they are good performance cats but not good emisions cats. im not the only one that has had problems with catco. so if you have to pass emmisions dont get a catco

Already Passed (3) Ohio Emission Tests with a Catco Cat. Now live in Florida with no testing so far.

do you work for catco?? cause ive heard nothing good about them

No, but its bad form to continue to knock a product because you had bad luck. Just another example that "THEY SAID" . Well I say your full of BS with your (8) post knowledge

I'm going with Catco.

...I haven't heard of any problems.

....and several people have passed the sniffer here with NO cat. I might tune your car up a little!

big deal 8 posts.....looks like this will be 9 im getting up there. so what i just found this site but ive been working on f-bodies for bout 3 years between mine my friends and family's. basic repairs and performance so dont call me an amatuer. and im sure ive had my hands on more f-bodies than you

Note! A original owner of 87 Camaro IROC-Z, so I don't think so KID... So keep working on these cars and gain some additional knowledge.

Hey guys, keep it civil; this is getting out of hand quick. If someone had success with a Catco, use it. If you didn't have success with it, use something else. Post count is entirely irrelevant to a person's knowledge. Now back to the TECH.

350tpi5speed, what did you replace the Catco with?

383 here with JUST a single catco and passed the ohio emmisions perfectly

Catco is junk. Take a look inside catco vs oem.. Woohoo, same thing. Now compare it to a carsound, xtremeflow, etc.. Notice the lack of restrictions around the matting?

Personally, I love carsound. Great high flowing cats. If you look at the mating between the body and the ends, its such a great design. Plus they can be had cheaper than a catco.

... A "Dirty engine" ??

Your tired of wading through the BS too?

-- Joe

Just to report what I've found.

In my "opinion", too many people were iffy about Catco. Too many problems that could've possibly been the Catco CC. No bad reports about the others.

...I went with Carsound/Magnaflow.