I got a new set of Dynotechs myself, mainly because of the price difference. I couldn't see spending an extra $500 for a few more ponies. I am saving that $500 for a F/I.

 

Lgs. Everyone seems to have their own preference though. But from what I have seen, the LG consistently put down better numbers, usually in the low end torque category. I am currently running 1-7/8 kooks as recommended by my tuner (thanks guys ) and once I get the money I will switch to 1-3/4 LG which I am certain will increase my TQ and HP.

 

There are lots of different ways to go. We have done some dyno testing, and to be honest we did not see a huge difference between brands. They were all a few hp of each other. The main thing to pay attention to is price, and that is how I can help!! We have a HUGE amount of Kooks, and Dynatech headers on the shelf. We are about to count inventory so I need the QTY to go down. Please pm or email me if you would like a quote on eather set!!

 

I think I'm leaning towards Dynatech if we are talking 2-5 horses.

 

I did the same, got the Dynatechs because money was a bit of a factor, and I could not see spending 500 more dollars for maybe a 10hp difference.
If you track your car consistently and every tenth of a second, and every 2 hp count, then sure go with LG's they do seem to produce a bit higher than the others., but again it's a question of difference in price vs difference in HP is it worth it to you. The Dynatechs are a proven good system as well perfectly compatable with cam/heads , sc or whatever.

both systems are excellent. Good luck

 

the originator didn't list his mods. Doesn't the level of mods help pick one brand over the other?

How about those with mostly (or completely) stock motors?

 

Dynatech for me for several reasons. As Icemanskis said, LG will probably give you a few more rwhp than "the other brands" but it means spending $500 more for it.

I chose Dynatech after seeing the excellent packaging, fit, finish and clamps. Sounds trivial but ask around about leaking exhaust systems from some of the other brands (no one will talk about it). Additionally, my car is slammed and I needed as much ground clearance as possible; Dynatech gave me that too.

EG

 

 

Nice Shot.

 

What is the red piece behind the headers? Some type of different heat shield?

 

Tunnel brace (looks like Elite Engineering Abs-of-[steel | aluminum]

 

What a thing of beauty.
Can't wait to get mine.
I'm going with the Dynatechs due to price also.

Ryan

 

Yes, it is the quarter inch Abs of Aluminum from Elite Engineering, ceramic coated red.

www.eliteengineeringusa.com - and speak to Jeff

EG

 

 

I'm completely sold on LG Longtubes. I'm involved in Speed World Challenge, through what I do for a living, and the fast Corvettes are running Lou's headers. When it costs you 30 grand to run an event, a little more for headers is money well spent.

I have them on my '02 Z06 and the power band is excellent, SOTP and on the dyno. The quality is first rate. The fit was perfect. Pre header install dyno was 357.8 HP@344.0 ftlbs AFR @ 12.8/13.0 Halltech T1 being the only mod, SAE corrected Dynojet LTFT's corrected to slight minus.

Post header install install AFR set to 12.8/13.0 : 377.8 HP@368.0 ftlbs SAE corrected Dynojet, LTFT"S set to slight minus. Had to fatten the tune a bit to get in the 12/13 AFR zone. This was a "down tune on a heat soaked 4th pass". I'll likey touch it up in the future for a cold motor. I'd wanted to be conservative under the circumstances with AFR.

I like the RPM band Lou's headers deliver in, quite superior for roadracing situations where you want to max the accelleration out of an apex. Wide and tall... juice at the low end and pulls hard all the way to shift point. Just beautiful.

Folks have to go with what works for them, price or quality, some times both. LG's are both IMO. You wanted an opinion, so I'm happy to share what I believe. You might find a rough equilavent, or a set that's "close", but I don't think you can find a better C5 header than LG Longtubes. Matter of fact I don't think they are matched by anyone's.

 

Ok, I know that I am heading into the deep water here but I will just point out the main features of the LG Pro Long Tube headers and let you all decide.

The pricing for the full LG Pro Long Tube system is now at $1695 with 3" metal cats or $1395 for the off road system. The cat version of our system has dropped by $200 because we have just found better pricing on 3" metal matrix cats which we have passed on to our customer.

The power difference shows up more as the modifications increase. At any rate, here are the main features of the LG Pro Long Tube Headers. Now with 2 wins in the Speed World Challenge this year and 2 pole positions and 2 outside pole positions.
Thanks

1.) LG headers are full 304 stainless steel from the engine all the way to the mufflers.

2.) LG Pro Long Tubes are the only headers to provide a full race "Merge Collector". This is the same collector that is used on nearly every race car and all Nextel/Winston cup cars. GOto http://www.burnsstainless.com/ then click on "Merge" collectors and you will see what the pros think of Merge collectors. They are expensive but effective in broadening the entire power curve.

3.) Our headers feature full 32" primary tubes for increased low end torque, and when mated to the Merge collector the top end does NOT suffer. LG headers have shown the best Low end torque while still maintaining the top end power.

4.) LG headers have a full 3" stainless X pipe included in the price. This is a "siamese" X pipe which is designed to eliminate the flat spot caused when the exhaust pulses collide at a particular RPM.

5.) The mid/rear pipes on the LG headers are also a full 3" mid pipe and because our system connects directly to the mufflers there is no need to cut your stock system up to mate to another brand system.

6.) Our system comes with 3" off road pipes so you can easily switch from Cats to off road.

7.) LG Headers are available with full 3" Metal Matrix cats which flow much higher than the ceramic cats supplied by other manufacturers and clearly flow more than a 2 1/2" metal cat supplier by one of our competitors. More flow= More HP. So if you are going to run cats then the only choice is a 3" full metal matrix cat.

8.) AN LG Pro Long Tube equipped Z06 won the South Carolina shootout with only 5 passes while the cars equiped with the other brand made 25 passes to no avail.

9.) Every Corvette in the World Challenge series runs
LG Pro Long Tube headers. Our headers are the only race designed merge collector full stainless steel system available for the Corvette.

10.) The fastest stock cu in normally aspirated Corvette in the world used LG Pro Long Tube headers and did a trap speed of over 140 mph in the 1/4 mile even while spinning the tires in 3 gears. go to
http://www.lgmotorsports.com/images/media/lg140.wmv or to www.lgmracing.com to see roadd racing video.

11.) LG Header equiped car normally aspirated stock cu in pulled 535rwhp with just cam head and forged bottom end with AFR heads and fast 90. The highest power ever produced from a stock cu in LSx engine.

I use the same LG PRo Long tube headers on my street car that we use on the World Challenge race car. We built a race quality header for your street car and we get BORLA to build them for us because of their long standing reputation for quality. We have been very happy with the product that they produce for us.

Compare the LG features line for line and you will come to the same conclusion that 1200 other Corvette owners have come to. They all bought LG Pro Long Tube headers. We provide "Value". Quality, Hp, materials, Metal Cats and Unmatched Power under the curve for your Corvette.

considering that we provide our product with 304 stainless front to back our pricing is not far off. Is it the "Blue Lignt Special"? No. But the value is there.

A Z06 will see right aruound 390rwhp with our headers and an LS1 edit tune and a G5X-3 cam and LG PRo Long Tube car makes about 430 rwhp all over the country no matter who does the install.

Thanks for your ears.

Lou Gigliotti LGM
972-429-1963

 

Exactly what is the HP/TQ difference???

 

If you do a search, the owner of the Corvette that did the swap posted his results with a graph. I forgot his screen name. but it was about 3-5 months ago.

Thanks
Lou Gigliotti

 

WOW Lou, That was a very impressive write up ! And with the price change in my favor that also includes the "X" pipe you have yourself a sale here !!!

 

With the money you save, get a Vararam. That'll make up the difference in HP and then some! I did