Did anyone have to deal with heat issues after the install? Since the original heat shields are removed, I'm wondering if any wiring etc. could get fried.

 

I had mine ceramic coated. Should pick them up tomorrow. I'm just splicing the O2 wires.

 

ZERO heat issues. Just make sure none of the wires touch t0he headers or exhaust pipes. I put some thermal insulation on the O2 sensor wiring for the rear O2 sensors and that worked great/

BC

 

[QUOTE=cooldog;1575680127]If I need help like that, I think I can do it by placing a 2x4 across the front fenders, and then using cord to support the headers from the 2x4.

I cut the heads off two bolts threaded into the heads to use as studs to hang the headers until I could get out from under the car to work from the top.

 

[QUOTE=JEFF C6Z51;1575705015]Great Idea!

 

Guys, can ya help a gal out and answer something for me. Other than the wonderful look of the aftermarket headers, what type of performance gain is often seen (realistically)?

 

On an LS2 w/stock exhuast, about 25 HP w/a tune.

 

[QUOTE=SUB VETTE;1575711895]I bought an ARP stud kit so I stuffed a header up in the hole and then from the top I hung a gasket and then the header onto the end studs and secured loosely with the nuts until I had all the studs in.

Rinse and repeat on the opposite side.

The studs are polished stainless steel with 10mm 12 pnt nuts

Here's one source

http://shop.corvettecentral.com/1997...-p6021027.html

 

I've gotten differing opinions on wheather a tune is absolutely necesary.
Even though there would be some "lost" horsepower, I'd like to avoid a tune - having had two poor experiences on my previous LS1 tune.

It's been often said that even with the rear 02 sensors install, you will still throw a code due to the high-flow aftermarket cats. I'd like to know how really frequent or common that really is.

 

25 - 30 HP. Remember,, you will need a tune to get all the power out of the header install.

BC

 

I had already calibrated my MAF using HP Tuners. After the header install, at idle, the computer was adding close to 30% LTFT and steady state was around 25%. That was going from the Z06 system to full headers on an LS2.

Care to guess where the WOT was at ?

 

fnbrowning

Here are my experiences with C6 headers:

Installed a set of Aftermarket Headers on my stock 06 MN6 Z-51 Coupe at home on jack stands:











This headers install very easily from the BOTTOM of the car. I can do this install in 4 hours.

It has high flow cats and I have NEVER had one DTC that was caused by the header install. Even before the tune..

I also have a VARARAM installed and a self ported TB:



My Mods without a tune had the following results:

- The car runs PIG RICH.
- Fuel mileage went from 26 highway to 23
- Car had more power but was running excessively rich and had a some KNOCK Retard during WOT in a few areas of the HP curve which cause excessive timing to be pulled. With just a set of headers, the engine will run fine but, you will have positive Long Term Fuel Trims and you will lose some fuel efficiency until you correct them with a tune.

AFTER THE TUNE~

I had the car tuned by Chuck at Corvettes Of Westchester in NY. All I can say is WOW. It runs EXCELLENT. NO MORE carbon out the exhaust, Fuel mileage is phenomenal. When I drove to and from Bowling Green Ky this year, on the open road 65-70 mph with two people and a trunk load of luggage, we were were getting 28-29 MPG.

In race trim, it FLIES!

Extremely happy with the mods and tune. Chuck is one of the best tuners around.

I just sold the C6 last week and the new owner is ecstatic with it. Were getting a brand new 2011 Inferno Orange Grand Sport Vert. We leave tomorrow evening for BG and a Museum delivery and get it on Monday. The drive back to CT will be exciting.

YES, the car will be getting a BRAND NEW SET OF AMERICAN RACING HEADERS from Nick at American Racing Headers and a new tune from Chuck!!!!

With the right tuner, your car should NOT have any issues. EFI Live now offers AUTOCAL and that allows you to tune at home using any tuner that has EFI Live. Your tuner sends you a tune. You up load the tune with the installer and data log the car. Send the file back to the tuner and he fine tunes it to YOUR Car. Cant beat that at all

Call Chuck for the details.

http://forums.corvetteforum.com/c6-c...-sale-now.html

Bill Curlee

 

Bill;

glenB writes:
So I understand that the car will be too rich without a tune. But regarding a "mail order" tune, I'd like to parapharase Glen's last sentence: "Care to guess where the WOT EFI logging runs were done at?"

The problem with a mail order tune is that you can't do the all-important WOT tunes in the legal, safe environment of a dyno. And if you use a dyno, you can't make immediate adjustments, and make another pull to view the results.
You have to leave the shop, mail off the results, wait for the recal, then buy another set of pulls and log again. = $$$

 

NOT ANY MORE!!! You can get a tune, up-load it, data log it ( you can find a good place to at least wind out second) and e-mail that data log back to the tuner for precision adjustment.

Its called EFI Live AUTOCAL. Chuck at Corvettes Of Westchester specializes in this process. Call Chuck and discuss the exact details and his retune policy. I bet you will be VERY happy! Chuck is one of the best tuners around and I am EXTREMELY happy with everything that he does for me.

This is off the C6 forum but it also applicable to all C5s:

http://forums.corvetteforum.com/c6-c...-sale-now.html

Let me know what you think:\..

Bill

 

Done. I have a minor exhaust leak on the right bank, which goes away when it warms up. I re-used the OEM gasket, and undoubtedly over-torqued it during the install. I'll probably put the OBX-supplied gasket in there later.

Took me forever to extend the damn O2 sensor cables! And I couldn't find any teflon-insulated wire (I thought I had some), so I just have to hope that the thermal tape and my routing job is good enough. If they do melt through, I know what to do ...

The right side is hitting/almost hitting the heat shield; I'm not sure if that's going to be a problem or not.

What a difference to the *SOUND*. I have the "collars" from nakidparts on my NPP exhaust, so they stay cracked open about 1/5 of the way, even on "mild", but holy sh*t, this thing SNARLS now.

Can't wait to get it tuned!

The other half of the festivities for the weekend was hooking up the engine oil cooler in the DeWitt rad that I installed last weekend. I *must* have ordered the wrong oil cooler lines, because there was no way to get from point A to point B. I finally had to cut and use hose clamps and a fair bit of bad language before it was done.

And my hands are scraped , bruised and sliced to ribbons from all the hours of trying to maneuver the hoses through the maze of crap in the nose of the car.

 

What brand are they?

 

Bill: You didn't specify but I assume these are AR Headers that you installed? Did you use the old gaskets when installing?

 

Stock. Just spliced in additional wire and wrapped with thermal insulaton from Autozone.

 

I actually meant the brand of the headers.

 

Ah ... the OBX ones. I didn't notice that this was not the "Installing OBX headers" thread, but a different one!