What do you think about these headers?
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What do you think about these headers?
I am planning on doing headers this winter on my 02 Z06.
http://cgi.ebay.com/ebaymotors/ws/eB...m=110181057173
That setup looks nice for the price and it includes high flow cats. What do you all think?
I thought about just doing some headers and eliminating the cats, but I am worried that eliminating the cats will trip the check engine light, and I have also heard that there may actually be some benefit from having cats. Any opinions?
http://cgi.ebay.com/ebaymotors/ws/eB...m=110181057173
That setup looks nice for the price and it includes high flow cats. What do you all think?
I thought about just doing some headers and eliminating the cats, but I am worried that eliminating the cats will trip the check engine light, and I have also heard that there may actually be some benefit from having cats. Any opinions?
Last edited by kirker912; Oct 17, 2007 at 01:14 PM.
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One more bit of info. I was planning on keeping the factory titanium rear half of the exhaust for the weight savings, plus I like the look and it'll save me some more money. Is it true that most of the aftermarket systems don't really flow much more than the factory ti system?
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wow, thanks for catching that.. For some reason the link didn't show... I fixed it now.
I have also just been informed about these from LG on special right now.
http://www.lgmotorsports.com/catalog...f45b36200a644a
I have also just been informed about these from LG on special right now.
http://www.lgmotorsports.com/catalog...f45b36200a644a
Last edited by kirker912; Oct 17, 2007 at 01:17 PM.
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From: Hudson NH
Man I'm going to jump on the LG's
LG has a great rep as far as helping out when needed. I also intend to keep the Ti's on. My first thought was ARH's but I think this is a deal I can't pass up. I am still torn between cats and no cats though.
Does it really cause problems without them? I'm also curious to know if anyone has just gone with the headers mated to the stock system out to the tailpipe. Does it negate any gains from adding headers?
Does it really cause problems without them? I'm also curious to know if anyone has just gone with the headers mated to the stock system out to the tailpipe. Does it negate any gains from adding headers?
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Sounds like we are in the same boat. I also wonder about the cats. I have heard a couple people say that I will have to get the O2 sensors turned off, and I defiantly believe this. So without cats will require a trip to get the computer reprogrammed which is expensive, but I also hear that it will be important to get the car dynoed and reprogrammed after installing headers anyways so it's a toss up.
I was actually hoping that I could get away without reprogramming the computer by getting the cats or simulators, but it is starting to look like a $500 trip to the dyno.
I was actually hoping that I could get away without reprogramming the computer by getting the cats or simulators, but it is starting to look like a $500 trip to the dyno.
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From: Hudson NH
Surely the same boat!
Sounds like we are in the same boat. I also wonder about the cats. I have heard a couple people say that I will have to get the O2 sensors turned off, and I defiantly believe this. So without cats will require a trip to get the computer reprogrammed which is expensive, but I also hear that it will be important to get the car dynoed and reprogrammed after installing headers anyways so it's a toss up.
was actually hoping that I could get away without reprogramming the computer by getting the cats or simulators, but it is starting to look like a $500 trip to the dyno.
I've heard some good things about Vette Dr's and Chuck Cow mail order tuning. I might take a chance on this and see what it does. I think I will most likely go with the cats, as I don't think there is any substantial power loss there. I just don't want to cause myself problems that will require more money to rectify. I've been reading and rubbing my head for about four months now. There are so many schools of thought here. I wouldn't consider myself cheap, but I hate wasting hard earned do re mi, when with a little home work, and a little elbow grease, I could have a few bucks left for something else.
Damn these Corvettes...
Safety Car
Joined: Jun 2006
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From: Wildomar CA
Take it from me, I have had 2 different long tube header setups, the first one was TTS long tube headers using the stock cats and x pipe, and my current setup of the LG PRO's with cats. The first setup, would throw a code after it would get out about 100-200 miles from computer reset. The LG's threw a code 100-200 miles out(without rear 02 sensors hooked up.), because they take that long to trip a code. Some people throw a code immediately.
Either way long tubes are going to need a tune, otherwise they will throw a code eventually. They car will run fine with any setup, but won't pass emmission tests because of the trouble code.
Either way long tubes are going to need a tune, otherwise they will throw a code eventually. They car will run fine with any setup, but won't pass emmission tests because of the trouble code.
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From: San Diego CA
more than likely you will have a CEL if you completely remove the cats
in alot of cases you can actually lose power with no cats in place, on a Vette its sort of a toss up, I typically tell people if you are making over 400WHP then you can get away with a high flow cat or if you are running a boosted application a high flow cat would be ideal.
You could still vary well get a CEL with hi flow cats as well due to the fact that you are now pushing more air through that part of the catalyist so the o2 sensors might read differently than what you were flowing stock....a good tune can eliminate any issues
in alot of cases you can actually lose power with no cats in place, on a Vette its sort of a toss up, I typically tell people if you are making over 400WHP then you can get away with a high flow cat or if you are running a boosted application a high flow cat would be ideal.
You could still vary well get a CEL with hi flow cats as well due to the fact that you are now pushing more air through that part of the catalyist so the o2 sensors might read differently than what you were flowing stock....a good tune can eliminate any issues
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Ok, so a tune is a must after doing this. I have searched and found a couple shops that can do it. Nothing very close but I don't mind the drive.
One more question I had last night. I normally consider headers to make an engine more efficient, and therefore help gas milage, but turning off the cats makes me wonder. What do you expect this to do to gas milage?
One more question I had last night. I normally consider headers to make an engine more efficient, and therefore help gas milage, but turning off the cats makes me wonder. What do you expect this to do to gas milage?
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From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
Thank you.......
I've heard some good things about Vette Dr's and Chuck Cow mail order tuning. I might take a chance on this and see what it does. I think I will most likely go with the cats, as I don't think there is any substantial power loss there. I just don't want to cause myself problems that will require more money to rectify. I've been reading and rubbing my head for about four months now. There are so many schools of thought here. I wouldn't consider myself cheap, but I hate wasting hard earned do re mi, when with a little home work, and a little elbow grease, I could have a few bucks left for something else.
Damn these Corvettes...
Damn these Corvettes...
Thank you..... As for the headers...Definately go with the LG Pro Longtubes..... In my opinion, there is nothing better....
We don't use anything else in our shop.....Additionally, I would recommend ME as the tuner.
STAY TUNED!
Chuck CoW