Trying to decide on which mfg. There is a $200+ difference with the identical packages. LG claims the Dynatech are "knock off's " of there's.

 

I love my Dynatech's got the complete kit with crossover and cats from Jegs for $1205 shipped.

 

is there a part number??

 

Hi guys,

They are not identical. Our LG Pro Long Tube headers are 1 3/4" primary tubes with Merge Collectors with a 3 " outlet. We also have a full 3" X pipe with our LG Pro Long Tube Header system.

I will admit that there seems to have been an attempt to copy our LG headers but we have done so much testing that we know that 1 7/8 tubes will hurt not only low end power but they don't even match our header's power output unless the LS2 engine is modified.

In fact we still use the 1 3/4" LG header design on our LS7 engines. and the last dyno day our C6 Z06 with the same 1 3/4" headers made 628rwhp 550rwtq normally aspirated with a cam and head and CAI.

THere have even been independant tests that showed a power loss with the 1 7/8 headers on an LS7 in addition to near 20 rwtq loss.

Regardless, you get what you pay for.

1. 1 3/4" 32" long Race Proven primary tubes.
2. Merge Collectors with 3" outlet
3. Full 3" Siamese X pipe with best flow and cross over of all the X pipes on the market.
4. Full 3" rear tubes that connect directly to the stock or aftermarket mufflers.
5. Full 3" Metal Matrix Catalytic Converters available
6. System can be purchased with or without Cats.
7. Included with an off road pipe to add cats later if no cats are purchased with the system.

8. LG Motorsports service after the sale. And the best warranty in the header industry.

Thanks and I hope that this answers some questions.

Let us know if we can help.

Lou Gigliotti LGM

 

Lou will always said his product is better...there are several member that dyno the dynatech..the HP are very close..within the margin of error. I bought the Supermaxx, they are 1 7/8", and very complete, O2 extensions, cats, gaskets, bolts, etc,,,,Cheaper than LG

 

I had the Dynatechs on my C5 (2 years ago) and I admit their kit was very complete.....but I was not very impressed with the fit, they were way too close to the steering column and hung a little low as well. I did not "feel" I gained much in the way of power and that was with a tune. I also remember Dynatechs first attempt on the C6 caused several problems with the clutch hydraulic line and even some fires!

If I do headers on my C6 (quite possibly soon) I will go with the LG's this time hands down.

 

Lou will always tell the truth.

Do a search and you will find that the torque below 5000 is so significant that it alone has sold our headers.

I am not saying that your choice is wrong I am saying that when tested back to back the LG headers make more hp clearly at the low end, and even on the 7 liter engines they match any header out there and in most cases beat the top end power.

here is a graph of our LG Pro Long Tubes on an 06 Corvette C6. Compare to any graph the torque at 2500 or 3000 rpms and you will see why these headers do so well.

We used the exact same headers on our race winning Corvette C6 World Challenge race car.

Thanks for your time.


Lou Gigliotti LGM

 

I'm with the LG's

 

I Love them !
About 20 rwhp gain.

 

Off topic briefly. Have you raced at Mont Tremblant Speedway? Does Dave McConnell still own it? Does Lucien still run it? I visit sometimes in the summer, next time I'll have access to a ride.

 

I have the 1.875" Dynatechs also, very complete kit with nothing missing and excellent instructions. $1400 delivered to my door from a Tbyrne Group Buy.

Dyno's don't lie and the Dynatech 1.875" and LG 1.75" will dyno within a couple of HP of each other. I never read a post on this Forum of missing bolts or gaskets with Dynatech but have seen a few complaining about missing parts with LG's.

 

It has been years since I raced at Mt Tremblant. I did race and win at Three Rivers many times. My last win there was in 96, flag to flag.

As for the 1 7/8 vs 1 3/4" headers, they will both make nearly the same hp at the top rpm area from 6500 up but from about 5000 rpms DOWN, there is usually no contest.

There must be a dynatech graph out here somewhere for a C6. Just check it out and compare the 2500 to 3000 rpm power.

To some, the extra power from 2500 to 5000 rpms may not matter.

LGM can not sell every Corvette owner a set of headers. We just try to get the facts about our LG Pro Long Tubes out rather than just let the internet validate an incorrect assumption.

Thanks guys.

LG

Thanks
Lou Gigliotti

Here is the graph that I was speaking of where the LG Pro Long Tube 1 3/4 " headers were compared to the 1 7/8" headers. There is a 20+ torque advantage with the LG headers and nearly 50 rwtq increase at 2800 rpms. On this engine the LG headers were down 1.5 rwhp at the top 200 rpms only. but the peak torque was up 20+ and a very large difference at 2800.

Thanks

 

As a matter of fact, I'm doing a HPDE course there July 10 - 12th sponsored by the Porche Club of America the "Northeast Region" chapter, they are one of the few chapters who will allow other brands to join in.

Not sure who now owns/runs it, but I'll certainly find out.

Now if I could just get Lou to "lend" me a set of his LG Pro Long Tubes!

 

had LG's on my C5Z and will absolutely have a set on my C6. Above all the expertise and knowledge Lou provides and his willingness to share it with the community will outweigh any monetary savings i may gain from a cheaper mass produced set of headers.

And Hal i GUARANTEE you that you could find a member on here who had things missing from EVERY other forum vendor hell, im one of them. Ill also vouch for Lou that the problem with the missing parts was most likely immediately rectified for the purchaser.

it all comes down to the fact that you get what you pay for, and Lou's numbers dont lie.

Dave

 

i have a set of dynatechs on my car and i will admit down low I LOST TRQ where LG always showns nice gains... its the backpressure i think

 

Those LGs are great looking. Thats what I plan to get when the funds are available. I have sold several sets of the Dynatech to truck owners and a set to a new mustang. The mustang actually had one of the dynatech cats colapse and cause the pressure in teh engine to build and blow. Had some problems on the trucks as well. There were more good stories than bad, but the bad always seems to stick out to me.

 

Another vote for the LG's. I researched quite a bit before I got the LG's. Lou has the ultimate combination: 1 3/4" primaries, 32" long primaries, and what most people forget about, the Merge Collectors. I made 40 pound feet more of torque and 25 more horsepower before and after and that is WITHOUT a tune! I've heard of guys getting as low as 15 hp with other headers until they get a tune.

 

Hey Lou, sorry to go off topic but quick question. Do you recommend ceramic coating your LG Pro Headers?

 

I'm no expert but from the research I've done....LG Pro Long Tubes are the only way to go. Despite some emissions control test concerns in the future, I'm already figuring when I can get my car to Texas now that the kids are out of school.

 

I too agree that LG's are the sh*t. I have yet to dyno the car because of the lack of tuning for an A6, but the low-end torque improvement is amazing. Exactly what I was looking to add for street and road racing application. Sound awesome as well! Great quality product.