Any problems/regrets with LG Headers?
Thread Starter
Burning Brakes
Joined: Dec 1999
Posts: 773
Likes: 0
From: Layton Utah
Any problems/regrets with LG Headers?
I am considering headers for my 99 C5 A4. It sounds like the LG long headers and free flow cats are the way to go. The group purchase makes an even better deal. Before I decide, has anyone had any issues with fit/finish/performance etc that I should consider? Also, if you have any other suggetions, I would welcome them. I want to be able to have them installed and then forget about them and just enjoy the increased HP. I was hoping to get 20+ HP from them without having to do any tuning. Is this realistic? Thanks for all your help!!!
Melting Slicks
Joined: Nov 2003
Posts: 3,396
Likes: 2
From: North Manchester Indiana
got them for my 98,, the only pain is the early years and the pass side air tube,,you need to remove the intake or cut and couple the new to the old. They do supply the new tube. I have no regrets,,,great fit, look killer and sour friggin fantastic....DO IT 
Safety Car
Joined: Feb 2002
Posts: 4,038
Likes: 0
From: Springfield MO
St. Jude Donor '03-'05-'06-'07
I had LG Pro LT headers installed back in Feb. No regrets and not one problem and they sound incredible with Stingers, I love these headers! Most folks run a little rich after the install while a few run a little lean (like me). You don't have to get a tune but it would probably be a good idea sometime down the road. Besides, you'll probably pickup a few more HP after a tune. 
Heres my dyno before and after the install. Not bad gains for just headers (this is prior to the CAM install).
:flag
Heres my dyno before and after the install. Not bad gains for just headers (this is prior to the CAM install).
:flag
Last edited by ericwf1; Jul 14, 2004 at 11:38 AM.
Advanced
Joined: Jun 2004
Posts: 72
Likes: 0
From: Clinton Township MI
You will love the LG headers. They make great power and are the best header on the market for the c5's. If you are interested give us a call, we have a corvetteforum special going on with them right now.
Thanks,
Jason
Thanks,
Jason
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Melting Slicks
Joined: Sep 2003
Posts: 2,458
Likes: 105
From: Northville Michigan
Ron,
I too can offer nothing but praise for Lou and his L.G. Motorsports Long-Tube headers.
I put them on my Z06 in April, along with Crane 1.82:1 aluminum rocker arms, springs, and titanium retainers. The combination generated an additional 44 RWHP.
Good luck with your decision.
I too can offer nothing but praise for Lou and his L.G. Motorsports Long-Tube headers.
I put them on my Z06 in April, along with Crane 1.82:1 aluminum rocker arms, springs, and titanium retainers. The combination generated an additional 44 RWHP.
Good luck with your decision.
Thread Starter
Burning Brakes
Joined: Dec 1999
Posts: 773
Likes: 0
From: Layton Utah
For those who have installed LG LT headers, do they hang down lower than stock pipes and if so, how much? Also, I have read several threads on install problems. Any tips/suggestions you can pass on would be appreciated.
Safety Car
Joined: Feb 2002
Posts: 4,038
Likes: 0
From: Springfield MO
St. Jude Donor '03-'05-'06-'07
Originally Posted by Ron Price
For those who have installed LG LT headers, do they hang down lower than stock pipes and if so, how much? Also, I have read several threads on install problems. Any tips/suggestions you can pass on would be appreciated.
I elected to have my headers installed by the LGM. Partly to bypass any potiental problems but also I wanted to get the car tuned too.
Instructor
Joined: Jan 2004
Posts: 151
Likes: 0
From: Campbell NY
I want the LG Motorsports headers but not if they hang lower than the stock Z06 system. I will look over the previous posts regarding the fit of headers. It is a nice power increase from headers and rocker arms. almost like adding heads alone.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Well, there is a recent post on Kooks in the tech section and they hang down 1" below the pan of the body. The description of the installation is scary enough for me to scratch Kooks off my list. LG's are still under consideration for me and I am glad to see all this positive information. Did anyone have any issues with codes after their installation? I know the LG's seemed to have quite a few complaints about this last winter, but it has been pretty quiet since so I am wondering if the installation has been debugged since then.
Pro
Joined: Sep 2003
Posts: 564
Likes: 0
From: Cary NC
I installed mine back in Dec 03 and with RT high flow cats and X-pipe. 1 gripe I have is the cats are 3" and the headers have merge collecters that are 2.5" so there is a bit of a gap and the funky steel straps supplied don't seem to completely stop the leaking noise. I have had LGM send me the new style clamps, but I still have the same problem. Anyone else get a 2.5" merge collector header? If so how do you deal with getting it to seal w/o leaks to the 3" RT cats?
Last edited by 2k1vert; Jul 17, 2004 at 11:48 PM.
Safety Car
Joined: Feb 2002
Posts: 4,038
Likes: 0
From: Springfield MO
St. Jude Donor '03-'05-'06-'07
Originally Posted by vettenuts
Well, there is a recent post on Kooks in the tech section and they hang down 1" below the pan of the body. The description of the installation is scary enough for me to scratch Kooks off my list. LG's are still under consideration for me and I am glad to see all this positive information. Did anyone have any issues with codes after their installation? I know the LG's seemed to have quite a few complaints about this last winter, but it has been pretty quiet since so I am wondering if the installation has been debugged since then.
Drifting
Joined: Dec 2001
Posts: 1,426
Likes: 0
From: Canton Michigan
I've got the LG's on my '99 (no cats). Picked up approx 30 rwhp with the system after dyno-tuning.
Had the rear O2 sensors edited out with LS1 edit.
I strongly suggest tuning after the install to gain max performance. You will notice the difference.
Had the rear O2 sensors edited out with LS1 edit.
I strongly suggest tuning after the install to gain max performance. You will notice the difference.
Drifting
Joined: Nov 2002
Posts: 1,776
Likes: 5
From: Midlothian Texas
St. Jude Donor '12-'13-'14-'15-'16
Originally Posted by Ron Price
I am considering headers for my 99 C5 A4. It sounds like the LG long headers and free flow cats are the way to go. The group purchase makes an even better deal. Before I decide, has anyone had any issues with fit/finish/performance etc that I should consider? Also, if you have any other suggetions, I would welcome them. I want to be able to have them installed and then forget about them and just enjoy the increased HP. I was hoping to get 20+ HP from them without having to do any tuning. Is this realistic? Thanks for all your help!!!
The only issue that I have is that the headers rub the steering shaft.
