How many cat's

Duro5341 · Oct 8, 2005

Hey guys
I know I'll probably get flammed for this, but how many cats are on a 1988 5.0L LX

The car I baught has them removed, and I want them back on.

I am located in Ontario..........just for emmisions info

Thanks
Cameron

HISSIN50 · Oct 8, 2005

Without getting into semantics about precats vs cats, etc etc, you should have 2 per side (4 total).

Good luck.

notchback · Oct 8, 2005

HISSIN50 said:
Without getting into semantics about precats vs cats, etc etc, you should have 2 per side (4 total).

Good luck.

yeah i was thinking the same thing...tell him 4 total and someone $hits the bed crying that 2 are precats

btw...unless you get a great deal on a stocker from somewhere...you are smog legal w/ just 2 cats . so if you get a hi-flow from any of the numerous exhaust makers...your fine

95COBRA241 · Oct 8, 2005

There should 4 (2 per side) as stated above. I think it will be expensive to buy a stock replacement from the dealer, probably more than a new catted H-pipe which will only have 2 cats (1 per side). Check with your performance shops, alot of them have extras around from previous customers who now have "race only" cars. There was a time when you could rent them for $50.00 for emissions.

Daniel50 · Oct 8, 2005

2 pre-cat and 2 cats. 2 up by the headers and 2 in the middle of the mid pipe. dont even think about going to the dealer of one lol. unless you wanna spend over 300 dollars. check your emmision standards

MahFiVeOh · Oct 8, 2005

Daniel50 said:
2 pre-cat and 2 cats. 2 up by the headers and 2 in the middle of the mid pipe. dont even think about going to the dealer of one lol. unless you wanna spend over 300 dollars. check your emmision standards

I just replaced my stock H pipe with an after market ( 2 cats ) The stocker with "4 cats" went for over 600 bux Canadian.Car sounds a lil different now too

old_blue · Oct 9, 2005

I just thinking of putting the heat shields on my h-pipe. I think it will pass the sniffer without the cats.

gt40_2003wes · Oct 9, 2005

i wouldnt bet on tht tbadair lol.

Duro5341 · Oct 9, 2005

notchback said:
yeah i was thinking the same thing...tell him 4 total and someone $hits the bed crying that 2 are precats

btw...unless you get a great deal on a stocker from somewhere...you are smog legal w/ just 2 cats . so if you get a hi-flow from any of the numerous exhaust makers...your fine

So if I get 2 Highflow cats............i'll be ok

I know on our 4.8L in our work truck we put 2 universal cats (good up to 5.9L) and we're fine

I was just gunna run 2 cats, after my full length headers, into 2 mufflers, and out to the tips...........is this ok?

Thanks for all the posts guys
Duro

stang&2Birds · Oct 9, 2005

Duro5341 said:
So if I get 2 Highflow cats............i'll be ok

That would be okay from for a tail-pipe only test. Many locations here in the States now also check for the number of cats.

The pre-cats are there to heat up quickly during start-up. According to some studies, in big cities the emissions from the first 5 mins accounts for ~30%+ of the emissions from cars. So, there is a requirement that cars pollute only "x amount" in the first "y minutes" from a *cold* start.

Of course, they don't do cold start testing at smog stations. So, by checking the number of cats and the tail-pipe emissions, they can be "pretty sure" that the car is in spec.

So, to summarize again, two cats will pass tail-pipe tests, but will fail some visual tests. Check your local smog laws.

Duro5341 · Oct 9, 2005

ya, up in Ontario we only have the tail pipe tests
And the car is supposed to be at operating temp, when it goes in, so it's nice and hot

So I think i'll do this, being it has true dual exhaust, no H-pipe
I think I may put a h-pipe in though, just to equalize the pressure

Anyone know how Flowmasters sound on a 5.0L stang with long tube headers, and an H-pipe

Thanks
Cameron

Topdowncruise · Oct 9, 2005

MahFiVeOh said:
I just replaced my stock H pipe with an after market ( 2 cats ) The stocker with "4 cats" went for over 600 bux Canadian.Car sounds a lil different now too

I assume "different" means louder?I understand those stock 4 cats keep things quieter than the after market high flow 2 cat systems.

bobcatv8 · Oct 9, 2005

God, I'm glad I live in FLORIDA!
No emissions testing at all. Thank you Jeb!!

Euphoric306 · Oct 10, 2005

Duro5341 said:
Anyone know how Flowmasters sound on a 5.0L stang with long tube headers, and an H-pipe

Thanks
Cameron

i dont think anyones ever tried that combo?? let us know how it sounds

ill advised · Oct 10, 2005

lol Euphoric.

Duro, I ran that setup for a few years and loved it. I always run 3-chamber delta flows and cats which isn't the meanest sounding combo.

Duro5341 · Oct 10, 2005

well I am torn between the Flowmasters, and the Magnaflow

I have heard them both on a 3.1L v6, in my Z24
and loved the sound

I want that whole "don't F^&K with me" sound

Duro

ill advised · Oct 10, 2005

I had magnaflows on my car for about 3 weeks and it just wasn't for me (they sound hot on my neighbors 03 Cobra though). They might be a bit too mellow for what you're looking for.

mustangjoe87 · Oct 10, 2005

notchback said:
tell him 4 total and someone $hits the bed crying that 2 are precats

LMAO just move to michigan and take them all off

stang8urimport · Oct 10, 2005

bobcatv8 said:
God, I'm glad I live in FLORIDA!
No emissions testing at all. Thank you Jeb!!

Jeb sucks.

How many cat's

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