High Flow Catalytic Converter (Cats)
#1
High Flow Catalytic Converter (Cats)
Hi all,
First of all, I hope you are all safe.
I have a question regarding having a free flow exhaust and headers installed on our GSF cars, which both are cat less.
If I need my car to pass emission tests when I renew my car's registration, but because of the setup, I'm afraid that if I go with this setup it will definitely not pass the emission test in the country I live in, though it is not as harsh as the States, but still will require emissions to be tested, and the car has to pass it for the car registration to be renewed. If I install high flow cats such as GESI, Kooks or Magnaflow will this fix the emission problem? and how much horsepower the car will loose if the headers and the free flow exhaust make around 30-50 HP? I read that there is no such thing as high flow cats too, is this true and are they only a marketing gimmick?
My other option is to install the system and then reinstall the OEM parts when it comes time for the emission test/renew the car registration, but if I install headers (I already have a free flow exhaust system), I do not want to go to that route if possible, and I want to avoid taking the car to mechanics and reinstall OEM parts and then back to my setup. The car is my daily driver and not a track car.
I did read some of the threads, but still I was not sure.
Your help and experience in this regard is very much appreciated.
Thanks.
Regards,
Wissam
First of all, I hope you are all safe.
I have a question regarding having a free flow exhaust and headers installed on our GSF cars, which both are cat less.
If I need my car to pass emission tests when I renew my car's registration, but because of the setup, I'm afraid that if I go with this setup it will definitely not pass the emission test in the country I live in, though it is not as harsh as the States, but still will require emissions to be tested, and the car has to pass it for the car registration to be renewed. If I install high flow cats such as GESI, Kooks or Magnaflow will this fix the emission problem? and how much horsepower the car will loose if the headers and the free flow exhaust make around 30-50 HP? I read that there is no such thing as high flow cats too, is this true and are they only a marketing gimmick?
My other option is to install the system and then reinstall the OEM parts when it comes time for the emission test/renew the car registration, but if I install headers (I already have a free flow exhaust system), I do not want to go to that route if possible, and I want to avoid taking the car to mechanics and reinstall OEM parts and then back to my setup. The car is my daily driver and not a track car.
I did read some of the threads, but still I was not sure.
Your help and experience in this regard is very much appreciated.
Thanks.
Regards,
Wissam
Last edited by 1wacko; 06-05-20 at 08:55 AM.
#2
We don't know what levels of emissions your government requires to pass. That makes it impossible to answer that part of you question. Contact the manufacturer of these cats to see the specs they claim. It'll be more accurate than any guesses you receive here. Best of luck trying to beat the emissions test.
#3
We don't know what levels of emissions your government requires to pass. That makes it impossible to answer that part of you question. Contact the manufacturer of these cats to see the specs they claim. It'll be more accurate than any guesses you receive here. Best of luck trying to beat the emissions test.
#4
Mfg specs are more accurate than anyone here can guess. Each mfg is different so no one can give you an accurate answer without accurate product info. If you want inaccurate guesses, I'm sure you'll get some from someone.
#5
When I spoke to Paul at PPE he said the high flo cats that are an option with the PPE mid-pipe will cost you around 4WHP on a GS-F. That is it. So with that said, I'd get the mid-pipe that has high flow cats as an option, which I believe is only the PPE, unless you have someone add them to your current exhaust/mid-pipe.
Steve
Steve
The following users liked this post:
1wacko (06-05-20)
#7
When I spoke to Paul at PPE he said the high flo cats that are an option with the PPE mid-pipe will cost you around 4WHP on a GS-F. That is it. So with that said, I'd get the mid-pipe that has high flow cats as an option, which I believe is only the PPE, unless you have someone add them to your current exhaust/mid-pipe.
Steve
Steve
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#8
PPE carries both the MagnaFlow Catalytic converters along with GESI cats. The GESIs are a lot more expensive, but you'll want to choose those:
https://www.clublexus.com/forums/is-...w-no-more.html
Lou
https://www.clublexus.com/forums/is-...w-no-more.html
Lou
The following users liked this post:
1wacko (06-05-20)
#9
PPE carries both the MagnaFlow Catalytic converters along with GESI cats. The GESIs are a lot more expensive, but you'll want to choose those:
https://www.clublexus.com/forums/is-...w-no-more.html
Lou
https://www.clublexus.com/forums/is-...w-no-more.html
Lou
Steve
#10
PPE carries both the MagnaFlow Catalytic converters along with GESI cats. The GESIs are a lot more expensive, but you'll want to choose those:
https://www.clublexus.com/forums/is-...w-no-more.html
Lou
https://www.clublexus.com/forums/is-...w-no-more.html
Lou
Last edited by 1wacko; 06-05-20 at 12:26 PM.
#11
GESi bricks are made for racing series where catalytic converters are required. Yes, they do exist. If you do your homework you'll likely end up with GESi units. That's what's on my shopping list right now to go with the headers I need for the IS F. The GS F will remain factory. The wife wouldn't appreciate any more power than the factory provided.
The following users liked this post:
1wacko (06-05-20)
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