Well, I've had it out on the road for about 150 miles, no codes. At idle and part throttle the sound level is about the same. But hold on when you get on it. Wow, I wasn't expecting that much improvement. The engine revs a lot easier and quicker now. That tach and speedo climb so fast. This is the single best thing I have ever done to a car. Its amazing how it uncorked the system. The sound at wot is simply outrageous. Those of you putting this system on will be happy. :hurray:

 

Looks like the use of the stock O2 sensors, the OBDII compatible CATS and the 2-1/2" pipes are the way to go for a clean installation with no problems. I read a lot of posts where some of the other systems are having problems setting codes and you have to have someone with LS1Edit remove some of the OBDII error generating capability. Since RI has pretty strict emissions standards and they are now looking at the PCM (a co-worker just told me this) for error codes, this system is now very high if not at the top of my list.

Now I just have to install my wife's new kitchen :cry so I can get a set :thumbs:

 

Bill, if you don't mind, what did the installation cost you? Were they difficult to install vs other brands? Thanks! :cheers:
Ed

 

Installation was $0, I did it myself. I can't speak on this vs. other brands for installation difficulty. However, it took no special tools to do this, only some metric wrenches and sockets and misc. extensions. It would probably take a pro 3-5 hours to do an install, including removing the old system. Since I didn't have access to a lift it took me ~7 hours to install after I had removed the stock system the previous evening.

 

They are going on today (Sunday)! Heading over to a buddy's house that has a lift.
Cannot wait!

 

Hi GUys,
Well this did start to turn into a LG bashing thread. First I want to point out that I posted my own thread about the extreme differences between our LG Pro Long Tube headers and the "Super Max" headers because one of their vendors made the following statement,
"SuperMaxx long tube headers now available. Long primaries like LG Headers. GP anyone? 2:21 PM 2/11/2004".

I did not employ any "attack" marketing, I just wanted to point out that even though they were being billed as "Just like the LG headers", they were in fact NOT the same.

LG Motorsports has been at the front of innovation with regard to the C5 since we decided to focus on the Corvette. We are truly part of the Corvette Community. We have made many parts for the C5 that have added value to the C5 owners including:

** LGM bolt in Coil over bilstein shock package
** "Super Cool" radiator with built in oil cooler. Plus our new
** 2 stage mechanical differential pump for Trans/rear end coolers
** LGM Spindle ducts for the C5
** LGM in house Wilwood 6 piston brake system using stock rotors.
** LGM G5X- cam series that produce very drivable high hp for your C5
** LG Pro Long Tube Headers," The Most power C5 headers on the planet"
** LGM 90mm Throtle body for the FAST intake.
** LGM Spherical bearing suspension bearings.

This is why I take offense to a company like Dynatech coming in and trying to jump in to the C5 community with a look alike product, and then bash LGM as the bad guy. Nothing could be further from the truth. We are the Good Guys here, with the C5 performance as the focus of our mission.


The dynotech headers were built to be just like our LG Pro Long tubes, but in the intrest of $$$ they made many compromises. Just because hamberger comes from cows doesn't make it steak.

Every comparison that I made in my own post was 100% accurate. Their display headers that I saw at the SEMA show had a heavy cast collector, and their promo photo and web site photo has an even different collector than
they sell. But since I had not bought a set of their headers, I could only compare based upon what they put out in their photos and displays.

Their response only confirms the extreme differences that there are between my LG Pro Long tubes and theirs. The only thing that they can say is that THEY are pleased with each compromise that they incorporated in their header design.

They confirm that their cats, X pipe and rear pipes are necked down to 2.5". And they confirm that they do not use a Merge collector like the LG's. They also confirm that they use a large truck type 4 bolt "Ball" type connection at their collector. Not exactly what you will find on a C5R Lemans car or Nascar. But their answer is that "They are pleased with their choice".

They say,
"We are very pleased with our unique, ball and socket 4 bolt connection flange. To date, we have not had a single complaint with ground clearance. The ball and socket design, coupled with our sintered metal donut gasket makes installation much easier for the consumer".

They can only be "Pleased" but the question is wether or not YOU will be pleased.

I built our LG Pro Long Tube headers with as few compromises as possible. In spite of what dynatech says, we do have a Merge collector that is welded in place to eliminate the air leaks that occur with a slip on collector. I used to buy our Merge collectors from dynatech but as they stated, they leak. So when we went to Borla, we stipulated that the collector had to be a "Weld on" and it had to be a Merge collector. We built one, and sent them a sample, and that is what we got.

Each of their responses says that "You don't need what LG is selling you". They may be correct, but our headers still produce the most torque and the most hp of any header on the market, including the Dynatech header.

They say the following about horsepower: We have not tested the Borla/LG system. We designed ours to meet several objectives, horsepower and torque obviously parts of the equation. We're very pleased with the results.

Again, there is that statement, "We are pleased with the results". but if you ask any of those who bought the LG Pro Long tube Headers would they downsize their cats, X pipe and rear pipes to 2 1/2" tubes, they would say no.
There was NO mis information in my comparison post. They can only say that they are "Pleased" with THEIR choices that they made about headers that are going on YOUR car.

Finally, they say they didn't copy our headers? Well they sent their employee to LG Motorsports to "Inspect" the leaking dynatech collector problem. He spent a half day in my shop where we were making our headers. They quized me on every aspect of the design, and why we did things that we did. I would never had let them in if I thought they were going to compete with us in the C5 market, but from what they say, they were in my shop exactly when they were in the 8 week time period when they had Bob's C5.
There are plenty of headers that are being built for the C5 now, and none of them look like the LG Pro Long tubes. It is funny that the dynatech headers look so much like our headers.

I am sorry that they chose to make an LG Look alike header, but I am "Pleased" that they also built in so many compromises to "SuperMax" their profits.

In closing, I will say that no one wants to be told that they made a wrong choice. And whatever header you choose I am sure that you will be happier than staying with stock manifolds. All headers are not made equal, and the results will also not be equal. We made as FEW compromises as possible and still keep it a "Production" header.

Enjoy your cars. In 100 years, no one will remember what headers you picked.

Thanks,

Lou Gigliotti, LG Motorsports


[Modified by LG Motorsports, 11:53 AM 3/7/2004]


[Modified by LG Motorsports, 11:57 AM 3/7/2004]

 

:eek: :thumbs:

 

:nopity

 

:lurk:

I'm still interested on seeing some dyno numbers.

Looks like a promissing system for people to get some good power for the money and not break the bank just to get a few more ponies.


[Modified by 411_monkey, 6:22 PM 3/7/2004]

 

Good to hear a little back-and-fourth on a header thread without a lockdown. I think we need a little more of this here...the two tuner posts taught me more about headers than 95% of my readings here have. That, and we never truly fell into a flame war. Maybe this could spur what we REALLY want to see, a fair head-to-head dyno comparison. :thumbs:

 

DYNO time :D

 

:iagree: On the same car and on the same day. :yesnod:
Ed

 

:iagree: I'm getting ready to make a purchase. Would love to see a dyno comparison! :lurk:

 

99FRC Stock with KOOKS 1 7/8 headers made 48rwhp and 47rwtq! :eek: Just headers and LS1-Edit
The thread is floating around somewhere here. :thumbs:


[Modified by CraZee ZO6, 8:57 PM 3/7/2004]

 

[darthvadervoice] IMPRESSIVE [/darthvadervoice]

 

CAM :yesnod:

 

:iagree: :seeya

 

Lou,

I do not see how this thread was about LG bashing. I see it as an attempt to compare two similar products. Most people here will agree hands down that LGM headers are a great product. What really caught my eye was the comment you made about the other headers being 28lbs heavier. I just did not understand how that could be the case, so I asked questions. Since then I have learned that the LG header pkg weights approx. 49lbs and the Dynatech system weighs approx. 63lbs.

 

Why? Is this the thickness of the tubes?

 

LG math: 63-49 = 28. Hmmm, maybe someone got their math degree at the University of Phoenix on-line? :jester