L99 headers (sponsors)

[JDP Motorsports]

Originally Posted by Pro Stock John

What CEL's are folks getting? In the 4th gen days we'd get PO 420 "Catalyst system efficiency below threshold.

The common codes are P0420, P0430, P1133 and P1153..

Kind regards,

Jordan Priestley
888.308.6007

[Msmall143]

Originally Posted by JDP Motorsports

The common codes are P0420, P0430, P1133 and P1153..

Kind regards,

Jordan Priestley
888.308.6007

P0420 Catalyst System Efficiency Below Threshold
P0430 Catalyst System Efficiency Below Threshold (Bank 2)
P1133 A/C pressure sensor high voltage, or O2 sensor bank 1 sensor 1 sluggish
P1153 O2 Sensor low switching (Bank 2 Sensor 1)

[Camarojt]

I say, JUST DO IT. Order headers and install them. Green cats?? Will they throw a code? Might...might not? If keeping your warranty is that important then don't mod. Ur not gaining enough to optimize the performance anyways so why bother trying to prove a point that it looks like there is no clear right or wrong answer. From what I've heard, green cats were indeed designed to run without throwing a code. But just Bc that's what they were designed for, DOESNT mean that you are guaranteed not to get one. So assume that it will throw a code....now what?? If it doesn't then you have nothing to worry about and all is GOOD. but if it does, either TUNE IT, TAKE THEM OFF, OR RUN IT WITH A CODE JUST TO HAVE UNTUNED HEADERS!
This subject is like questioning your gas mileage with a cam.

[Msmall143]

Originally Posted by Camarojt

I This subject is like questioning your gas mileage with a cam.

NO! I'm pretty sure if they came out with a cam that offered significant gains (let's say 75% of a big cam) while maintaining stock mpg for both city and highway there would be a thread discussing its effectiveness.

[MarylandSpeed]

Originally Posted by 62nalide

Oh they will eventually.

No the green cats will not.

Originally Posted by The_Blur

Expect to tune them all. While it might not be "necessary," I'd expect CELs and imperfect driving until you get them tuned.

Sadly, there just aren't any shortcuts. Cars are electronically controlled these days, and that requires you to update the electronics when you update the hardware.

I see more and more people thinking because the green cats do not throw codes, they don't have to tune and thus will have no warranty issues. While the green cats do not throw codes, headers are one of the most advanced bolt ons. Without a tune, you are leaving half the power on the table you could get with it. Also, I see the risk of having an mechanical issue due to going a long time not properly tuned as a greater evil than the potential of warranty hiccups due to having a tune.

Originally Posted by aabreu09

I have a 2012 camaro ss and im looking at headers that do not require a tune. Obviously KOOKS 1 7/8 headers with Green catted connection pipes are my only option so i wanted to know how much I'd be paying for them shipped to 07307.

I got a quote from JDP already.
Maryland wants me to call (which i cant til late tonight)

Kooks has a minimum advertised price policy. Because of that, we can't put prices below that policy in writing. What happens if we do PM or email those prices is that someone eventually gets greedy, and starts forwarding it to the competition looking for price matches. Then the competition complains to Kooks, and we get in trouble making it hard to offer these deals. if we give out a discount for being a Camaro5 member, you need to call us to get that discount.

While others may be all over members the second they post about headers going on how they are the greatest, you really should invest the 5 mins and call us. Make no mistake, we are the largest Kooks dealer in the country for a reason. You will not find a better price and product knowledge anywhere else.

[Msmall143]

Originally Posted by MarylandSpeed

Also, I see the risk of having an mechanical issue due to going a long time not properly tuned as a greater evil than the potential of warranty hiccups due to having a tune.

You bring up a good point I didn't think of, but I'd like if you could offer more insight. So you can run this setup without a tune, however performances setup isn't ideal...I get that, but didn't think it would cause any damage. You're saying running long tubes without proper programming increases the chance of potential larger issues down the road? Is this because it would be running lean? Can't the ecu accommodate by making adjustments?

Just wanting to learn what harm the lt's are opening me up to without the tune.

I can deal with leaving a bit of power cause I can always tune to get it.

Maybe I'll call you guys Monday

[tys2010camaro]

[QUOTE=MarylandSpeed;7211736]No the green cats will not.



I see more and more people thinking because the green cats do not throw codes, they don't have to tune and thus will have no warranty issues. While the green cats do not throw codes, headers are one of the most advanced bolt ons. Without a tune, you are leaving half the power on the table you could get with it. Also, I see the risk of having an mechanical issue due to going a long time not properly tuned as a greater evil than the potential of warranty hiccups due to having a tune.


Couldn't have said it better myself! Do it RIGHT!

[YellowL99]

before i bought this camaro, i went through 4 cars that had issues and the warranty's sucked. I always said my next car would have bumper to bumper warranty an everything. Although im only staying with this car for maybe 2years(or less), this is being handed down to my brother so i would still want that warranty since he doesnt take care of cars like myself.
Ive heard the way headers sound in a car and i was just in love, some of these cars did not have a tune so i saw their dash all lit up. I dont really care too much for horsepower on this car specifically. I started this thread just to get prices and hear facts/stories etc. I appreciate everyone's input, looks like im going to have to do even more research than i originally planned. Anymore input?

[SSGUNNER]

I like the idea of the these green kooks.

[MarylandSpeed]

Originally Posted by Msmall143

You bring up a good point I didn't think of, but I'd like if you could offer more insight. So you can run this setup without a tune, however performances setup isn't ideal...I get that, but didn't think it would cause any damage. You're saying running long tubes without proper programming increases the chance of potential larger issues down the road? Is this because it would be running lean? Can't the ecu accommodate by making adjustments?

Just wanting to learn what harm the lt's are opening me up to without the tune.

I can deal with leaving a bit of power cause I can always tune to get it.

Maybe I'll call you guys Monday

Both cars we tested with the green cats and not tune ended up with very dirty tips meaning they were running rich. While not as much of an issue as running lean, running rich reduces gas mileage, and can cause issues like the cats failing prematurely.

[SteveDoten@ARH]

Our Camaro5 ARH systems are now shipping with 49-state legal cats.

If there are any questions please give us a call.

Steve