I am looking to see if anyone has installed these headers:

http://www.ebay.com/itm/390887761702?item=390887761702&viewitem=&vxp=mtr
If so how was fitment and are they holding up so far with normal driving conditions?

 

There is a lot of discussion on them in this other thread on here.

I would start there

https://www.corvetteforum.com/forums...ound-them.html

 

Thanks. I am looking for someone with these exact ones on their car and the experience. I have been up and down with debates about buying the Chinese headers BLA BLA BLA. I have had OBX headers on 3 vehicles and no issues at all. So simply want to know from people with these on their car what issues they ran into if any.

 

The real downside is the hardware, so chuck it, and by quality bolts, exhaust gaskets and clamps instead.

Also, dry fit the system together, then spot weld the high flow cats to X pipe, the drop the X pipe with spot welded high flow cats so these connections can be welded together.

As for the headers and rest of piping, all SS and the headers are a very, very good clone of the design it was stolen from.
Also to point out, you want the kit with the high flow cats, and not just the make shift resonators (cat deletes) that the kit you listed has instead. The high flow cats are not going to hurt you in HP due to back pressure problems, and with cats, will not have the fuel smell of unburnt fuel.

Lastly, will need a tune to get the all of the HP out of the headers, so when you put the system on, get extension cables for the front O2's, and do not install the rear O2's (will be deleted in the tune). If you feel that you just have to have the rear O-2's, then anti fouler's on the rear O2's, and make sure to run the needed extension cables in the torque tube void, and not below in the tube area instead. The anti foulers will help to keep the rear O2's from fouling out, as well as give a higher differential reading between the front to back O2's that is needed as well (read cats are moved farther down from the heads than the stock OEM locations, so they become less effective and why no LG headers can get a CARB #).

 

Thanks for the info. I have a set of ARP bolts, a welder, and hp tuners so sounds like they are going to be ok. I never run rear 02s. Do you have these insalled still?

 

Virtually everyone takes out the rear O2 sensors, because they won't work properly with the high flow cats.

 

Do you have these ebay headers installed on your car?

 

Sorry, nope, I have LG SuperPro 1 7/8" with 3" high flow cats and x-pipe on mine.

They did not install the rear O2's I'm just running with the front ones now.

 

Do the rear sensors get replaced with a plug?

 

Yes, they there are plugs installed in the bung holes which are there at the rear of the cats for my LG Super Pro headers.

There is also a separate bung (plugged unless you install a wideband O2 sensor) located in the X pipe section. The dyno tuners inserted their wideband there, when the tuned it, but they would have connected to mine, if I had one installed (which I eventually plan to do).

There are 5 bungs (holes) for O2 sensors with my headers - 2 for the front O2 sensors, 2 for the rear O2 sensors and another one that can be used for a wideband O2 sensor.

Now back to cheap headers, I saw these on Amazon....
Don't know anything about them, but it is amazing what they now carry....

 

yea i would lean toward the ones on ebay for the same price. The ones on ebay have reviews and some history behind them. the ones on Amazon have no ratings. I spoke with the vendor and asked some questions that they missed on the AD like collector size, primary size, material thickness. So they say it is 18g 304ss and didnt know the collector size or primary size. so i told him to go measure it and now waiting to hear back. Then i will order them. I am still looking for someone with these on their car to get some feedback about this company and these headers specifically.

Also to kedar, I usually go to ACE hardware and get a stainless plug. I have seen a few times people getting aluminum ones and then they get stuck in the threads and never get them out. ANother thing you can do is just use some old O2 sensors and cut the wires.

 

I have Kooks headers ready for install, just want to be prepared. It appears that Kooks' extra bung for a wideband is on the driver's side. Am I right?

Shouldn't the wide band o2 sensor be on the driver's side up stream of the cats because that is the leaner side?

Also, should the installer just cap the rear sensor bungs and not install the rear o2 sensors? I am not rushing to have the vette tuned (FI is hopefully coming in 2015).

 

You should start a new thread about this. You will get more exposure to your question and not just have my answer but others as well. I think you should tune if adding LT headers. You need to add more fuel into your curve to account for more air flow. You will be running lean until you have it tuned and may throw codes. Given that if you don't want to tune it then the computer will still be trying to read your rear sensor to adjust the air fuel ratio.

 

[QUOTE=Dano523;1588722184]The real downside is the hardware, so chuck it, and by quality bolts, exhaust gaskets and clamps instead.

Also, dry fit the system together, then spot weld the high flow cats to X pipe, the drop the X pipe with spot welded high flow cats so these connections can be welded together.

As for the headers and rest of piping, all SS and the headers are a very, very good clone of the design it was stolen from.
Also to point out, you want the kit with the high flow cats, and not just the make shift resonators (cat deletes) that the kit you listed has instead. The high flow cats are not going to hurt you in HP due to back pressure problems, and with cats, will not have the fuel smell of unburnt fuel.

Lastly, will need a tune to get the all of the HP out of the headers, so when you put the system on, get extension cables for the front O2's, and do not install the rear O2's (will be deleted in the tune). If you feel that you just have to have the rear O-2's, then anti fouler's on the rear O2's, and make sure to run the needed extension cables in the torque tube void, and not below in the tube area instead. The anti foulers will help to keep the rear O2's from fouling out, as well as give a higher differential reading between the front to back O2's that is needed as well (read cats are moved farther down from the heads than the stock OEM locations, so they become less effective and why no LG headers can get a CARB #).[/QUOTE]

Do you know of any aftermarket headers that does get a CARB number for a C6 because I've not read of one yet?