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Discussion Starter · #1 ·
Hey people, i have a 94 bronco with a 351 180+k miles blah blah blah. My cats are old and are getting clogged so i want to remove them. The problem it that i dont have a welder so i cant make and adapter for the y-pipe, since both pipes go straight into the first cat. I was wondering if there is someone who sells them. i would take it in but i am pretty sure a shop wouldnt cut out the cats without replacing them. and i live in florida so there is no smog checks. or would it be easier to just get a 2 inlet muffler and have the exhaust exit behind the pasenger door. i know there have been alot of exhaust posts lately but i couldnt find an answer. Thanks
 

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Practicing Infidel
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Why don't you buy any of the replacement Y-pipes and forget the cats after it ?

Gets you from the manifolds to past where the first cat would be. You can cobble up an extension connection to the muffler and mandrel bent tailpipe, right ?

Sixlitre
 

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Satyr of the Midwest
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So what if you don't have emissions testing? It's a FEDERAL violation, and do you really want your mileage and torque to suffer? Yes, they will. Get a replacement converter, or just let the shop do it, man*g.

EDIT: Six beat me again. Sort of. And yes, like that. :whip
 

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Discussion Starter · #4 ·
yeah i would do that, but the only problem is i dont have 200 to get a new y-pipe, but i can afford the pipe, and a muffler or adapter.
 

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The problem it that i dont have a welder
get one.

so i cant make and adapter for the y-pipe, since both pipes go straight into the first cat. I was wondering if there is someone who sells them.
www.bassani.com

i would take it in but i am pretty sure a shop wouldnt cut out the cats without replacing them. and i live in florida so there is no smog checks.
if there are no smog checks, then who cares if you have cats??

option 2: you can cut off your cats, shove a pipe through it, or knock all the shit out of it., then re-install them with sleaves and c-clamps.
you wouldnt need a welder that way, but i recommend welding it.

or would it be easier to just get a 2 inlet muffler and have the exhaust exit behind the pasenger door. i know there have been alot of exhaust posts lately but i couldnt find an answer. Thanks
http://www.supermotors.net/vehicles/registry/17171/62928

i got mine done by an exhaust shop though.
 

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Discussion Starter · #6 · (Edited)
And i thought that the cats were very restrictive and killed the gas-mileage from the other threads? And Im not going with a larger diameter exhaust. someone straighten me out on the mpg thing. oh, and i meant make an adapter for the y-pipe, not make the whole y-pipe, soory for the confusion.
 

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yeah i would do that, but the only problem is i dont have 200 to get a new y-pipe, but i can afford the pipe, and a muffler or adapter.
Have you done the so called Sixlitre tune up (outlined in the tech section) yet ?

Frankly you''ll save enough in gas to pay it off in a month and with the next three months gas saving's you can splurge on the Y-pipe (which will also raise your mileage).

You guessed right, no shop will do that for you and they don't work for free either. It won't take long for them to ring up $200.00 either.

The adapter pipe is less that $6.00 and then a piece of straight pipe to the muffler.

Sixlitre
 

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Any obstructions (cats, mufflers, pipe dia and bends in pipes) will cause your MPG to go down. I don't remember seeing any dragsters with cats, mufflers or pipes on them and it's for a reason.
 

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Satyr of the Midwest
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Any obstructions (cats, mufflers, pipe dia and bends in pipes) will cause your MPG to go down. I don't remember seeing any dragsters with cats, mufflers or pipes on them and it's for a reason.
:smilie_slap

We're not drag racing 5000-pound tool sheds, dear. These are daily drivers for most of us, and they almost always operate in closed-loop mode. That requires a slight slow-down in exhaust gas velocity to be accurate. Dragsters aren't built for mileage, and don't operate in closed-loop EVER.
 

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My point was in the first sentence and the second sentence was just funny.

You can adjust your exhaust in many ways to increase or decrease your MPG. I had a '84 Stang that I dualed out with headers and mufflers only, no cross pipes to equalize the pressure. Performance never suffered and I actually gain HPs as a result of it. It was a DD that did a lot of qtr miles and even long end top runs. Qtr mile was in the 12's and top end (with the 5 speed standard) was 163 MPH. I did all my driving on the streets and freeways.

There are debates on whether back pressure is truely needed (hence the dragster comment and my Stang comments). Here's a question that nobody can truely answer without citing Federal Law trash. If you have a vehicle that can pass emission testing without smog crap on it then why have it on there? I've read a lot of posts here say remove them while others start bashing them for it.

If you want to cite laws I bet you can look up a lot of laws still left on the books from centuries ago, like here in Texas is a good one, you can me arrested for being a vagrant if you have no legal U.S. tender on your person. That means coins and cash not plastic or checks. Plastic and checks are not legal U.S. tender and does not have to be excepted my anyone.

Opps sorry, back to the regular programming now.
 

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Back when I had my stang I deleted my cats when I got my exhaust done because we don't have emmisions in this part of VA. One day I got pulled over by a state trooper for my exhaust being to loud and he looked under my car and wrote me a ticket for not having cats too. So check your local laws before you remove em.
 

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I got pulled over by a State Trooper for not wearing a seat belt and my headers use to drag on speed bumps and it would knock them loose. He wrote me a ticket for an exhaust leak and seat belt. My Stang set so low you couldn't stand up a coke can under it.

When I got my Bronco inspected this past Sat. the guy did look under there but my Bronco has everything on it and passed with flying colors.
 

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Practicing Infidel
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Sig is correct about our 5000 lb vehicles needing "some"

back pressure to maintain our torque production. Horsepressure is second fiddle for Broncos, with low end torque being paramount.

Not enough back pressure on a relatively stock Bronco will result in torque and mileage losses.

Sixlitre
 

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Designated Tranny Killer
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gut the first cat and put a Catco highflow cat on it.
 

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a renegade of funk
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And i thought that the cats were very restrictive and killed the gas-mileage from the other threads? And Im not going with a larger diameter exhaust. someone straighten me out on the mpg thing. oh, and i meant make an adapter for the y-pipe, not make the whole y-pipe, soory for the confusion.
a high flow would suit you just fine.
cats are not as restrictive as morons make them out to be, granted over time they can be as they collect shat.
some day the tree huggin ass bags will take over the country and we'll all be screwed. this could very well lead to not only smog/safety inspections across the board but it could very well ruin wrenching for the average joe
 

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some day the tree huggin ass bags will take over the country and we'll all be screwed. this could very well lead to not only smog/safety inspections across the board but it could very well ruin wrenching for the average joe
Not while you're still armed and dangerous

though it's already happening in some states and Canadian Provinces. Just when things are getting tight with the economies they throw in yet another inspection to comply to and pay for :banghead

[email protected]$turds all !

Sixlitre
 

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If'n money's tight (where isn't it at $4.00/gal+)

or if you want to build your own Y-pipe, check mine out and I recommend s1120's Y-pipe build too, but PushnFords makes a good point too.

Sixlitre
 

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Discussion Starter · #19 ·
damn, i didnt know used cat converters went for so much. I guess my best bet would be to buy a welder, make my own y-pipe cut the cats, and sell them on ebay. i will also keep the stock muffler and pipe diameter to keep some back pressure. thanks for pointing out that you can get some money out of cutting apart your exhaust.
 
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