catalytic(s)

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Oct 1, 2002 | 01:56 PM

#16

whittey

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Joined: Jul 2001

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catalytic(s)

On EFI models, the first 'one' is a resonator. The second is the cat. The third is the muffler

-=Whittey=-

P.S. The purpose of the resonator isn't to make it louder like a tip would be, but to quiet it down.

Oct 1, 2002 | 02:01 PM

#17

optikal illushun

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Joined: Mar 2002

Posts: 3,545

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From: Coal Region

catalytic(s)

i knew it!! my 1st thought was it was a resenator.

Oct 1, 2002 | 07:14 PM

#18

MustangGT221

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Joined: Nov 2001

Posts: 14,947

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From: Topsfield, MA

catalytic(s)

Thats the first time i've ever heard it being called a resonator, resonators go after the muffler so you might want to check that information out. I don't have 100% proof. The o2 sensor is before the 1st cat so, why would it mess anything up? On my old truck i believe it was before the 1st cat, I know my 302's is.

Primary rig is Green Thunder:
95' F-150 XLT 4x4, 302, 5 spd, MSD 6A, Flowmaster Exhaust, Sunroof, Clear corners w/ Diamond headlights, CD player with 2 10" subs and some 32" BFG Muds

.

Thats it for now, saving for a stang. Check out my Gallery for a look-see.

Justin

Oct 1, 2002 | 07:19 PM

#19

MustangGT221

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Joined: Nov 2001

Posts: 14,947

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From: Topsfield, MA

catalytic(s)

I take that back, I do infact have written proof. My ford dealership manual says NOTHING about a resonator, they are both cats. There are pictures of the exhausts on all models and everything is listed, they are both cats.

Primary rig is Green Thunder:
95' F-150 XLT 4x4, 302, 5 spd, MSD 6A, Flowmaster Exhaust, Sunroof, Clear corners w/ Diamond headlights, CD player with 2 10" subs and some 32" BFG Muds

.

Thats it for now, saving for a stang. Check out my Gallery for a look-see.

Justin

Oct 1, 2002 | 09:25 PM

#20

optikal illushun

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Joined: Mar 2002

Posts: 3,545

Likes: 4

From: Coal Region

catalytic(s)

well whatever it is, if u dont need, get rid of it.

Oct 3, 2002 | 12:28 PM

#21

SPROCKET

Senior User

Joined: May 2002

Posts: 310

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catalytic(s)

like I said beforew....if you get rid of the first cat aka pre-cat or resenator what ever... your going to be running extremely lean and your truck will constanly be running a code and your o2 sensor will go bad a lot....leave the pre-cat alone and do what ever you want with the second(big)cat since it is after the o2 sensor.