Cat in I-pipe
Thread Starter
Joined: Jan 2008
Posts: 597
Likes: 9
From: Tequesta, FL
Cat in I-pipe Did a search and couldnt find much about it, Has anyone ever put a cat in the I pipe as a cheap alternative to reduce rasp and/or exhaust fumes/smell?
Any info is appreciated.
Any info is appreciated.
to me that would be pointless. Cats are tended to work with them as close to the motor as possible.
IE: to get rid of rasp and to get rid of the exhaust smell that some people hate
IE: to get rid of rasp and to get rid of the exhaust smell that some people hate
Thread Starter
Joined: Jan 2008
Posts: 597
Likes: 9
From: Tequesta, FL
I believe they are close to the engine so they can be subjected to more heat, as they operate most efficiently at high temp. With all the people on here i'm looking to see if any one has tried putting one in the I pipe and what the result was. We dont need to pass inspections down here in FL so If it isnt working at 100% efficently I wouldnt care.
I believe they are close to the engine so they can be subjected to more heat, as they operate most efficiently at high temp. With all the people on here i'm looking to see if any one has tried putting one in the I pipe and what the result was. We dont need to pass inspections down here in FL so If it isnt working at 100% efficently I wouldnt care.
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Thread Starter
Joined: Jan 2008
Posts: 597
Likes: 9
From: Tequesta, FL
The reason of this post was to see if anyone had done it and if it was sucessful in getting rid of rasp and or smell without buying an expensive Y pipe.
Last edited by Mart00SS; Dec 9, 2008 at 10:57 AM.
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reguardless of how close to the headers the cat is it will still get rid of rasp. I dont hear any cars get less raspy once the cats are warm. But the only thing that would make me hesitate from this is restriction. Because one cat in the i pipe will cause a lot more restriction then two in the y. And if you were to get a matallic spun cat so there is almost no restriction and put it in the i, it might not get rid of rasp. I have heard of others saying the car is still raspy after having them installed in the y. maybe lose a few ponies and get a carsound cat put in the i or have two installed in the y but pay more. i would say it is your opinion. I have no idea what the power differences would be anyways.
What exhaust setup do you have now? I thought about the same thing in effort to get rid of the rasp and that annoying sound at around 2k rpm.
I got rid of my rasp with a 3.5in dynomax bullet muffler right at the merge. If you want a vid of the the sound just let me know.
I got rid of my rasp with a 3.5in dynomax bullet muffler right at the merge. If you want a vid of the the sound just let me know.
Thread Starter
Joined: Jan 2008
Posts: 597
Likes: 9
From: Tequesta, FL
What exhaust setup do you have now? I thought about the same thing in effort to get rid of the rasp and that annoying sound at around 2k rpm.
I got rid of my rasp with a 3.5in dynomax bullet muffler right at the merge. If you want a vid of the the sound just let me know.
I got rid of my rasp with a 3.5in dynomax bullet muffler right at the merge. If you want a vid of the the sound just let me know.
It would be a bad idea. Cats work either because of exposed through area or frontal surface area, the result of either being more open area through the core. I think a single cat in the I-pipe would restrict the exhaust significantly. Even a good cat.
Here is my set up. Yes i have rasp
Cam + QTP LTs + Custom Kooks O/R Y + Flowmaster Merge + GMMG C/B
The only thing that i am going to do different in the spring is i am adding a PowerPack after the merge then adding in my cut out.
Cam + QTP LTs + Custom Kooks O/R Y + Flowmaster Merge + GMMG C/B
The only thing that i am going to do different in the spring is i am adding a PowerPack after the merge then adding in my cut out.
yeah man that bullet will get rid of it as it did on mine jet hot lt tsp ory bullet cut out then a flowblocker 2000/// super 44 when i need to be quite
i kinda have a before and after before the bullet just let me know if you want to hear it
i kinda have a before and after before the bullet just let me know if you want to hear it
TECH Apprentice
Joined: Sep 2007
Posts: 364
Likes: 0
From: Bossier City, LA
i guess it won't work 
I just added a couple cheap $30 ebay cats to my ORY and it almost completely eliminated the rasp i was getting with my LT's/ORY/dual/dual exhaust setup.
If you are going to put something on the y-pipe why not a resonator, it will do the same thing.
If you are going to put something on the y-pipe why not a resonator, it will do the same thing.
