Kooks 2" Long tubes w/green cats
10-21-2015, 12:50 AM
#1
Instructor
Thread Starter
Kooks 2" Long tubes w/green cats
Hey guys. I just ordered some Kooks 2" Long Tube headers w/ Green cats from Maryland Speed. I am getting the headers coated w/ the Airborn 1700 Silver coating. I was told these new Green cats shouldn't throw a code. I am not planning on tuning in the near future. I currently just have a Corsa X pipe as far as exhaust mods. I was gonna get American Racing mid lengths but hopefully with these Green cats it will be what I want and add even more power.
10-21-2015, 05:19 PM
#2
They won't throw codes for rear O2, but they will throw codes because the longtubes place the converter further downstream. They will take longer to heat and the codes you get will reflect this. It may only light the MIL every couple hundred miles or so, and u can clear it and have no issues. However, there will be a history of these cleared codes that can be seen by GM....if that matters any to you. if you have no warranty concerns, it's only a minor inconvenience to clear the codes until you can tune them out
John
John
10-21-2015, 05:28 PM
#3
Instructor
Thread Starter
hmm, i was told it wouldn't throw codes...I am hoping this is true because it is the only reason I ordered them. I do not want to clear the codes or have any history of codes stored
They won't throw codes for rear O2, but they will throw codes because the longtubes place the converter further downstream. They will take longer to heat and the codes you get will reflect this. It may only light the MIL every couple hundred miles or so, and u can clear it and have no issues. However, there will be a history of these cleared codes that can be seen by GM....if that matters any to you. if you have no warranty concerns, it's only a minor inconvenience to clear the codes until you can tune them out
John
John
10-21-2015, 09:51 PM
#4
Instructor
Thread Starter
This is straight from Maryland Speeds website
Kooks offers a standard High Flow Race Catalytic converter for all applications. This is the same style high flow race converter that every other header manufacturer offers. Without a tune, the Standard high flow converters throw check engine lights in almost every application they heat up and flow differently than the stock cats. To solve this, and provide a more durable converter, Kooks now offers connection pipes with what they call "Ultra High Performance Green" catalytic converters. These new green cats from Kooks use a special design that uses premium materials never before seen in a aftermarket converter to flow at a very high level, while not throwing check engine codes (for the vast majority of customers). In the testing thus far, 98% of customers did not get a check engine lights with the stock tune. Those who did get lights were at a performance level where a tune would be required anyway. These "Green" catalytic converters have also proven more durable due to their premium design/materials, and are recommended for extreme HP or supercharged applications. Please note connection pipes with green cats do cost more due to the premium construction (for instance they include more platinum than most cats), and are special order.
Kooks offers a standard High Flow Race Catalytic converter for all applications. This is the same style high flow race converter that every other header manufacturer offers. Without a tune, the Standard high flow converters throw check engine lights in almost every application they heat up and flow differently than the stock cats. To solve this, and provide a more durable converter, Kooks now offers connection pipes with what they call "Ultra High Performance Green" catalytic converters. These new green cats from Kooks use a special design that uses premium materials never before seen in a aftermarket converter to flow at a very high level, while not throwing check engine codes (for the vast majority of customers). In the testing thus far, 98% of customers did not get a check engine lights with the stock tune. Those who did get lights were at a performance level where a tune would be required anyway. These "Green" catalytic converters have also proven more durable due to their premium design/materials, and are recommended for extreme HP or supercharged applications. Please note connection pipes with green cats do cost more due to the premium construction (for instance they include more platinum than most cats), and are special order.
12-20-2015, 09:21 PM
#5
Burning Brakes
This is straight from Maryland Speeds website
Kooks offers a standard High Flow Race Catalytic converter for all applications. This is the same style high flow race converter that every other header manufacturer offers. Without a tune, the Standard high flow converters throw check engine lights in almost every application they heat up and flow differently than the stock cats. To solve this, and provide a more durable converter, Kooks now offers connection pipes with what they call "Ultra High Performance Green" catalytic converters. These new green cats from Kooks use a special design that uses premium materials never before seen in a aftermarket converter to flow at a very high level, while not throwing check engine codes (for the vast majority of customers). In the testing thus far, 98% of customers did not get a check engine lights with the stock tune. Those who did get lights were at a performance level where a tune would be required anyway. These "Green" catalytic converters have also proven more durable due to their premium design/materials, and are recommended for extreme HP or supercharged applications. Please note connection pipes with green cats do cost more due to the premium construction (for instance they include more platinum than most cats), and are special order.
Kooks offers a standard High Flow Race Catalytic converter for all applications. This is the same style high flow race converter that every other header manufacturer offers. Without a tune, the Standard high flow converters throw check engine lights in almost every application they heat up and flow differently than the stock cats. To solve this, and provide a more durable converter, Kooks now offers connection pipes with what they call "Ultra High Performance Green" catalytic converters. These new green cats from Kooks use a special design that uses premium materials never before seen in a aftermarket converter to flow at a very high level, while not throwing check engine codes (for the vast majority of customers). In the testing thus far, 98% of customers did not get a check engine lights with the stock tune. Those who did get lights were at a performance level where a tune would be required anyway. These "Green" catalytic converters have also proven more durable due to their premium design/materials, and are recommended for extreme HP or supercharged applications. Please note connection pipes with green cats do cost more due to the premium construction (for instance they include more platinum than most cats), and are special order.
Well? Did they throw a code ?
12-20-2015, 10:31 PM
#6
Instructor
Thread Starter
I dropped my car off at Horsepower Addicts last week. I will be picking it up on Tuesday. I am getting the headers installed along with a 18% pulley, flex fuel sensor, 160 degree thermostat, NGK spark plugs, and Fasterproms Ram Air. It will also be getting Dyno tuned. I will not be able to tell you if just the headers with the green cats with no tune will throw a code
01-13-2016, 12:09 PM
#7
I dropped my car off at Horsepower Addicts last week. I will be picking it up on Tuesday. I am getting the headers installed along with a 18% pulley, flex fuel sensor, 160 degree thermostat, NGK spark plugs, and Fasterproms Ram Air. It will also be getting Dyno tuned. I will not be able to tell you if just the headers with the green cats with no tune will throw a code
01-13-2016, 01:25 PM
#8
Instructor
Thread Starter
The following users liked this post:
Sharkgray (01-13-2016)
01-13-2016, 02:33 PM
#10
Instructor
Thread Starter
01-13-2016, 02:40 PM
#11
Former Vendor
Element loose inside and gets stuck sideways or blows out. Stock z06 I'll say its ok but modded customers especially with pulley I don't set up with cats. Oem system with main cat delete and corsa x pipe my customer gained 18 hp. The oem manifolds flow well
01-13-2016, 03:07 PM
#12
Instructor
Thread Starter
Thing is i cant stand the smell of a car with no cats....I hope mine hold up
01-13-2016, 03:22 PM
#13
Former Vendor
StOk cam/tune I've never had any issues with smell and no cats on new z06. Once you put cam in then yes you snell it. This is why I'm making a cat delete kit
01-15-2016, 10:19 PM
#15
Former Vendor
The Kooks green cats hold up the best of any cat on the market to boost if tuned right. I will be honest, we have sold a lot of them to CTS-V/ZL1/Z06 guys, and I have never seen a set fail. If the green cats fail, no other cat will last. It does all come down to the tune however. A bad tune will kill a cat fast.
01-22-2016, 08:18 AM
#16
Drifting
Just installed mine. Code within 20 miles. Otherwise stock 5.3L 2014 Silverado.
01-22-2016, 09:18 AM
#17
Race Director
The Kooks green cats hold up the best of any cat on the market to boost if tuned right. I will be honest, we have sold a lot of them to CTS-V/ZL1/Z06 guys, and I have never seen a set fail. If the green cats fail, no other cat will last. It does all come down to the tune however. A bad tune will kill a cat fast.
01-23-2016, 03:55 AM
#18
01-25-2016, 02:21 AM
#19
Le Mans Master
On e30 (30% e85) The car made 717rwhp and 671 rwt. You can see the video here
https://youtu.be/r6TkPV47K1Y
https://youtu.be/r6TkPV47K1Y
01-25-2016, 02:38 AM
#20
Team Owner
Hey guys. I just ordered some Kooks 2" Long Tube headers w/ Green cats from Maryland Speed. I am getting the headers coated w/ the Airborn 1700 Silver coating. I was told these new Green cats shouldn't throw a code. I am not planning on tuning in the near future. I currently just have a Corsa X pipe as far as exhaust mods. I was gonna get American Racing mid lengths but hopefully with these Green cats it will be what I want and add even more power.
Not Kook's But
Maryland Speed rocks just the same!
