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09-07-2007, 01:35 PM #1
Hi Flow Catalytic Converters Question?
My regular catalytic converters are going bad, so my question is are the Hi Flow Catalytic Converters worth the money? and anything else u can add about these( gas, sound, performance) please let me know! thanks
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09-07-2007, 09:20 PM #2
- Join Date
- Jul 2007
- Location
- Alberta
- Posts
- 17
Silver- 2000 Trans AM WS6
I've installed Magnaflow cat-back systems on both my TA's (1995 convertible and 2000 WS6) with the Magnaflow high-flow catalytic converters even though catalytic converters are not required in Alberta, Canada. I added the high-flow catalytic converter to mainly reduce the emissions smell on vehicle start-up (wife and kids complained too much...). The sound still sounds great. From what I had read, they do help with flow but I don't think it was anything great.
2000 WS6 Trans Am
1995 Trans Am convertible
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09-08-2007, 03:41 AM #3
- Join Date
- Aug 2005
- Location
- Texas Department of Corrections
- Posts
- 18,128
- Retired Outlaw Sum Bitch
I did the broom handle mod. Paid big bucks for the Random Technology cats and those POS didnt last 8 months......
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09-08-2007, 12:55 PM #4
whats the broom handle mod?!?...as in bashing the fuck out of the stock honey comb inside the cat?
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09-08-2007, 03:55 PM #5
I'm pretty sure thats what he means, thats how I did it on my 88 monte ss. Today I would't recomend it just remove them and put some pipe in its place and sell your cats for $130. There's a guy buying them up in the wanted parts section, there worth some money and he's legit I sold mine to him a few months ago.
As to the topic I run the magna flow/carsound hi flow cats on my setup and so far so good had them on for about a year with no problems. I could't tell you if I lost or gained any hp since I did headers, cats, y-pipe and tune all at the same time. If you have to run cats for emission generally aftermarket hi-flows are cheaper. I also believe there is a 8 year warranty on the stockers which if you have an 02 they are still covered if anything is or does go wrong with them.Last edited by JonB; 09-10-2007 at 08:19 PM.
05 PBM GTOCold Air Inductions CAI,Relocated IAT with omega,Slp Predator tune,Flowmaster axle back with H pipe,Custom tuned TCM.BC Racing coil overs
Sold 01 z28
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09-10-2007, 10:13 AM #6
I use the Magnaflow High Flow cats. I have had 0 problems. I did LT's, Y-Pipe and tune at the same time so I couldn't tell if there was any change from just the Y-Pipe.
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09-10-2007, 07:48 PM #7
- Join Date
- Nov 2006
- Location
- Earth
- Posts
- 215
I wish I had the link. Several test done on high flow cats vs stockers - no improvement. It appears modern converters are very efficient as they come on the car. Since I have no proof, take it for what it's worth.
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09-10-2007, 07:49 PM #8
they made a test with S.a.m
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09-10-2007, 08:17 PM #9
Not sure what link your looking for but I have a link that says the exact opposite.
http://www.installuniversity.com/ins...n11.122001.htm
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09-10-2007, 08:52 PM #10
- Join Date
- Nov 2006
- Location
- Earth
- Posts
- 215
The test I "thought" to have seen were done on a dyno - no flow bench numbers. When hp goes up then flow volume is important but nobody I know of puts cats on a 600 hp car. For example, gutting cats should put flow bench numbers through the roof but I have yet to see someone post great results from doing it. I guess that is my feelble point. Like I said, take it with a grain of salt. I wouldn't bother with hi-flowing cats unless it saves money.
Last edited by 01Z28M6; 09-17-2007 at 09:22 PM.
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09-11-2007, 03:37 PM #11
I had Random-Tech Y-pipe w/high flow cats....fit was really good and never had a prob with them.
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09-12-2007, 07:53 AM #12
- Join Date
- Jul 2006
- Location
- chicago, il
- Posts
- 46
red- 2000 Camaro SS Conv.
there is an 8 year 80,000 mile factory warrenty on the stock cats. i had to have both mine replaced about a year after i got the car.
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