Random Technology has been around forever, and makes good quality Hi-flow cats.
High Flow Cats
Team Owner
Joined: Dec 2008
Posts: 35,874
Likes: 1,600
From: Honolulu HI
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
Dave really?? Makes you gag??? Overreaction. Your car either had some other issues or it was the headers or exhaust you had. Mine doesn't have much of a smell. Honestly. Man up.
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Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,629
Running too fat, or did you mange to push oil through them to clog them/ blow the honey combs out instead??
Hence until you burn/chip/wear the noble coatings (P+R, P+P) off the ceramic honey comb sub straights, should be able to clean them out if they are just clogged isntead.
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
man up ... sure ... because yours don't smell that means that everybody else who complains is wrong right .....
get a life ....
Dave
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
You're the one that quoted me say I was wrong first dude. You insinuated that all cars with out cats will smell so bad that it will make you gag. That's the fact here. Your wrong and if you can't take being corrected then you not only need to man up but grow up too.
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,629
I guess nothing wrong with running leaded fuels in Alabama as well?
Hence the only reason I can see for not running high flow cats (only about a 4hp loss with high flow cats) and dealing with the unburnt fuel smell , is you are running leaded fuel that would kill the cats isntead.
Hence the only reason I can see for not running high flow cats (only about a 4hp loss with high flow cats) and dealing with the unburnt fuel smell , is you are running leaded fuel that would kill the cats isntead.
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
I guess nothing wrong with running leaded fuels in Alabama as well?
Hence the only reason I can see for not running high flow cats (only about a 4hp loss with high flow cats) and dealing with the unburnt fuel smell , is you are running leaded fuel that would kill the cats isntead.
Hence the only reason I can see for not running high flow cats (only about a 4hp loss with high flow cats) and dealing with the unburnt fuel smell , is you are running leaded fuel that would kill the cats isntead.
The only time I notice any smell is if my car is running while backed into my garage and I’m inside the garage. And even then it is not a so called terrible gaging smell. I never smell anything if car is running outside even if I’m outside the car and I never smell it inside the car. And I do have a sense of smell. I personally know people and have even read post on this forum of people having to replace cats for whatever reason. Now I in no way claim to know more about how cats work or how they go bad as you or several other people on here. All I’m saying is IF you live in a state that doesn’t have emission inspections why not at least try and go no cats so you do not loose the 4-6 HP and do not have to replace the cats ever? Then if the smell is so terrible that you can’t take it then by all means put some cats on.
Instead of going by what I SUSPECT SOME people are saying is a terrible smell because they listened and put on cats so that has to be the best thing to do and don’t really know how bad the smell is. Im not accusing anyone of this. I’m sure some cars do smell stronger and some people are more sensitive. But I want my car to be a hot rod and perform as best it can or I can afford so if I have to put up with a little smell when I’m in the garage then I will. Everyone needs to make up their own minds.
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
Apologizes to you Dano if my reply sounded like I was frustrated with you. I am not. It’s just that I’ve said this several times on several threads on here on the same subject. I respect you and your knowledge. You helped me with my relay/fuse box issue and I thank you again for that.
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,629
No worries, but I try to be kind to the older couple out for a drive, stuck behind me at a stop light/down wind that could be odor funked out instead.
So even if you are not sticking up your own car cabin at the stop light (e85 odor is not as bad as petrol odor, but is not the sweet smell of race fuel), the couple behind you may have the same luck as you.
As a side note, as a lad in the summers at my grand parents house (since they lived in a small town and only had the one car), my grand mother would get bored being at the the house all week, and would have my grandfather take her for drives around the town during the weekends; which she got great pleasure in nothing more than just being taken for a drive around the town now and again.
This has always stuck with me through the years, and refuse to be "That Guy", that would ruin such a "Simples in life" for a couple out for nothing more than a leisure drive; for the simple pleasures of it alone.
Or you could be "That Guy, blowing your cigar smoke in a strangers babies face.
So even if you are not sticking up your own car cabin at the stop light (e85 odor is not as bad as petrol odor, but is not the sweet smell of race fuel), the couple behind you may have the same luck as you.
As a side note, as a lad in the summers at my grand parents house (since they lived in a small town and only had the one car), my grand mother would get bored being at the the house all week, and would have my grandfather take her for drives around the town during the weekends; which she got great pleasure in nothing more than just being taken for a drive around the town now and again.
This has always stuck with me through the years, and refuse to be "That Guy", that would ruin such a "Simples in life" for a couple out for nothing more than a leisure drive; for the simple pleasures of it alone.
Or you could be "That Guy, blowing your cigar smoke in a strangers babies face.
Last edited by Dano523; May 7, 2018 at 10:34 PM.
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
No worries, but I try to be kind to the older couple out for a drive, stuck behind me at a stop light/down wind that could be odor funked out instead.
So even if you are not sticking up your own car cabin at the stop light (e85 odor is not as bad as petrol odor, but is not the sweet smell of race fuel), the couple behind you may have the same luck as you.
As a side note, as a lad in the summers at my grand parents house (since they lived in a small town and only had the one car), my grand mother would get bored being at the the house all week, and would have my grandfather take her for drives around the town during the weekends; which she got great pleasure in nothing more than just being taken for a drive around the town now and again.
This has always stuck with me through the years, and refuse to be "That Guy", that would ruin such a "Simples in life" for a couple out for nothing more than a leisure drive; for the simple pleasures of it alozne.
Or you could be "That Guy, blowing your cigar smoke in a strangers babies face.
So even if you are not sticking up your own car cabin at the stop light (e85 odor is not as bad as petrol odor, but is not the sweet smell of race fuel), the couple behind you may have the same luck as you.
As a side note, as a lad in the summers at my grand parents house (since they lived in a small town and only had the one car), my grand mother would get bored being at the the house all week, and would have my grandfather take her for drives around the town during the weekends; which she got great pleasure in nothing more than just being taken for a drive around the town now and again.
This has always stuck with me through the years, and refuse to be "That Guy", that would ruin such a "Simples in life" for a couple out for nothing more than a leisure drive; for the simple pleasures of it alozne.
Or you could be "That Guy, blowing your cigar smoke in a strangers babies face.
And I don't smoke or blow anything in anybody's face. Much less a strangers baby. So you can rest well tonight ok?
Melting Slicks
Joined: Mar 2013
Posts: 3,311
Likes: 386
From: Toronto Ontario
I bought my grand sport modded with a cat delete and the exhaust smell is unbearable
The fel mileage is good, its nota bad tune, its just ridiculously bad when your stopped at traffic or idling
I am considering going with high flow cats , what is the best brand to go with? I have 3 inch mid pipes as far as I know
The fel mileage is good, its nota bad tune, its just ridiculously bad when your stopped at traffic or idling
I am considering going with high flow cats , what is the best brand to go with? I have 3 inch mid pipes as far as I know
Thread Starter
Instructor
Joined: Jun 2012
Posts: 220
Likes: 4
From: Trophy Club Texas
I bought Hinson Headers and got their cats with it. Not sure if they actually make the cats but they didn't last long. They broke up after about a year. I didn't have a bad smell when they broke up.. I bought Kooks high flow cats as a replacement and they seem to be ok after a little over a year.
Racer
Joined: Feb 2018
Posts: 486
Likes: 34
If you are just going to cut the old ones out and weld in new ones I'd go with the universal Magnaflow.
https://www.jegs.com/c/Exhaust-Syste...=&N=4294956030
https://www.jegs.com/c/Exhaust-Syste...=&N=4294956030