Doh! my bad....I have to pay attention to which section I am in. I thought were talking about C5's, lol

 

True dat, dyno's don't lie. But Mustang dyno's will yield different numbers than Dynojets will. So when comparing dyno numbers, I only look at SAE corrected numbers from like dyno's.

Also, the peak HP number is just one data point in the range. Due to the formula for HP, peak HP always occurs high in the RPM range, which is where you spend the least time, either on the road or the track. What engine builders look for is the "area under the curve", which is effectively the same as the average TQ within a given RPM range. This number is the most accurate predictor of real world performance.

I have Melrose headers on my C5, so I don't have a dog in this fight. But from the information I have seen on this Forum, LG Pro headers deliver the most power, but are also more expensive. I like coated headers, and I got my Melrose headers for free, so I can't complain. But if I were to buy a new set of headers for my C6, it would be the LG's. To me, it's worth the extra $400 to know I have the best product on the market.

 

I have nothing against LG's system, so I will not make any negative comments about it. My C6 was the 6speed car that Dynatech used to design their system on. I saw the system being designed and it is top quality. The fit and finish of the Supermaxx system is 2nd to none. I have it matched with B&B's Route 66 exhaust and it sounds fantastic.

Again, compare and you make the choice. LG's is a good product. I personally recommend the Dynatech Supermaxx from my on personal experience.

 

C6VettePilot, I gather your C6 is a stick ?

 

As you guys can tell from my signiture I do not run LGs headers and Lou and I have tussled some in the past. But, I was there when the switch referenced in this graph was made. By the sound alone you could tell the car made more power. The car became a beast. When the 1 7/8s were on the car my 403 sounded as mean or meaner but after the switch the LGs sounded absolutely bada$$.

LGs are quality headers

As for Lou always telling the truth, let's play some poker Lou

 

4 MY EGO.........Yes, it is the 6 speed stick Dynatech used to design the headers for that model. They had to modify the system they designed for the automatic to work with the hydraulic clutch line.

 

Just wondering. Thanks.

 

For what it's worth I have read almost every thread on headers in the C5 section when I had my '99 and for the last two years in the C6 section.

I had DT's on my '99 and wasn't too impressed, next time I plan on doing LG's and getting them coated by Swain Tech before install.

I also just met Lou this past weekend at Mosport and was pleased when I asked him about his LG LT's he didn't try to give me a snow job and he didn't bad mouth his competitors either. My impression was his attitude is live & let live. In any case when the time comes LG's will be going on my car!

 

I was looking at LG vs Kooks and I would consider Dynatech.........but so far I'm still on the fence.

 

I just wonder why we don't see threads like this about Pistons, or rod bearings.

A stock exhaust manifold will take the exhaust gasses from the engine to the mufflers just like a header will.

Every header design will do the job a little differently. We tried to include as many "helpful" features in our headers to make that job easier.
Our 3" X pipe and 3" mid and rear pipes were included for that reason, as well as our "Merge Collectors". I can remember when the header wars on the forum claimed that "Merge Collectors" were not worth anything, and now other brands are using them as if they finally figured it out.

At any rate, every header will do the job of taking the exhaust from the engine to the mufflers. Some will do it better and some will do it differently, which will move the power curve and torque curve.

Figure out what your priorities are and go with the header that fits your needs. And if you have no need for speed, then stick with the stock manifold.

Life is short. and in 100 years (or less) we will all be dead so it won't matter.(I like saying that)
We all have fun with our Corvettes. I didn't have much when I was growing up so I just feel fortunate to even own a Corvette. It was my dream, and I am still dreaming. (got to find a way to the the new Corvette SS)

Enough philosophy.

If headers are in your future, we would appreciate it if you would buy LG's. We will try to give you the best product and service and value for your money.

If you don't buy LG's, we still want to see you have fun with your Corvette.

See you at the races.

Lou Gigliotti

 

Lou, I think the main reason for all the discussion is that headers and CAI intakes are probably THE most popular mods out there for the average performance enthusiast. You certainly see a lot of spirited discussion about heads and cams as well.

When I got my first LS1 there was only ONE choice for LT headers, and that was Grotoryhans (sp??). They were expensive, and hard to get, but those who were looking for the most power sought them out. Then the MAC mid-lengths came along, and they were cheaper and more widely available. SAME kind of discussion about the pros & cons vs. Grots, w/ many guys claiming they would produce the same power w/ the right tune.

Now we have lots of different choices. This is the result of competition. It's the American way, and what makes this country great! Your header business is good, and so is Kooks', and Dynatech's, and American Racing's, and Melrose's, and B&B's, and Stainless Works', Pacesetter's, and well ---- you get my point.

What also makes it great is vendors such as yourself, Keith at HP Tuners, the guys from LPE, A&A, and many others who are willing to personally take the time to come on this forum and communicate with us directly, answer our questions, and make great products. THANKS!!!

 

...well said!

 

Very good post & BTW

Lou,

Thank you for the post but several years ago when I was putting together my 302 I spend a whole bunch of time sitting on the fence looking at pistons, rods and etc. It's called accountants disease.

 

It's 'cause bolt on mods are a lot easier to do than major engine mods. And, a whole lot less expensive too.