alamo1974

Please tell me why you would pick one over the other.

TaylorMade

Can't go wrong with either of your first two choices. I have LG's and I'm very happy with them.

SpinMonster

Oringinally Kooks didnt have a very good merge collector. I had always known it would come down to those two brands. American racing headers was born out of Kooks and I had believed to that point used the same design with a disgruntled ex-employee from Kooks. At the point I bought my second set of headers I stayed with kooks simply out of brand loyalty.

I was talked into LG headers with a deal that If I didnt like them or they didnt perform as expected, I could take them off and put my kooks back on. Since there wasnt anything at risk money-wise, and the labor was free with me doing the install and tune, I tried them and liked what the low end TQ did for my L92 head combo. I didnt switch back because the gains were definitly there. I have driven Kooks headers cars since and they make power too. Kooks with the new race merge collector is a good product. I had great success with both companies feedback and communication so I have no complaints there.

In the end the car you have is a collection of parts that work as a whole. You must choose your application and buy accordingly. My time with LG is such that I will stay with them for my next car if I get another vette. I also recomend them to others as the longer primaries make low end power that I noted in my own build and the longer primaries also should make that power by the math. Its a race proven product that is used in a race that closely mimmics what you would have on the street. Drag racing is a bit of a dichotomy in that the launch power and midband of the LG's helps while the few HP you may make on top is always in the powerband in the 1320 with the kooks. Persoanlly I have always been of the mentaility that I would trade 3 at peak for 3 in the midband. If there was 20 in the midband, it would be a no-brainer.

If I had one complaint, its that I dont like slip fits. I do like the way they went in and had no issues at all.

So thats my 'why'.

Bad06vette

No on the B&B headers.

As far as AR or LG, you can't really go wrong with either. Both are great headers. Like Spin said; The LGs have been making more power in the midband and a few less on peak hp. AR are going to be a little more peak hp, but less in the midband. Honestly, it won't matter too much with either choice. Both the LG and AR are great sets of headers. I would go with which either one you could get the best DEAL on.

nwc6

I went with AR's because the guy that was going to tune the car used them. I narrowed my choices to LG or AR's. If I lived in San Antonio, I would probably use LG motorsports to install and tune the car.
Here is the dyno sheet from the install:

3 Z06ZR1

I happen to love Kook's. Fastest bolt-on car runs them,Their leak proof
collector is second to none in my opinion,Fit is perfect.These companys
update things as needed, So If you had a old set A new set maybe better.
can't go wrong with Ar's, Lg's or Kook's. These seem to be the major 3. Haven't seen the B&B

03 Z-oh-6

Just went through this....I went with LG's, more low end torque than the others.

0Carmen@TheVetteDoctors

You know what we use
American Racing is used on the fastest vettes on the eastcoast

keyplyr

Some opinions are that Lg's built their rep on a good product, but the quality has diminished in recent years. I've talked with a couple different tuners (both local and online) and American Racing Headers are their choice.

Because of this, I chose ARH's and I'm very happy with them. Huge mid-band increases.

03 Z-oh-6

The LG's low end TQ just blows away the competition, that's what swayed me. I came VERY close to buying ARH.

alamo1974

Thank all of you for your response. The SpinMonster has a point - the whole is = to the sum of the parts.
Here's the parts:
2007 C6-A6
MagnaFlow Exhaust
A&A Supercharger (Vortex - "Stealth" version)
18"/10.5" Wheels
NT-01 315/30ZR-18 Tires

This is my setup, and I am only interested in times for 1/4 drag.
If I read you right, the LG would be the best choice. Or does it really make a difference.
Thank you.

robz

For 1/4 mile times most people who race vettes often will recommend the ARH including myself.

SpinMonster

Are LG's made by B&B under contract?

I didnt know B&B even made a header for the C6. Its kind of a conflict of interest to make a header for a competitor isnt it?

I have a complaint about all C6 headers: Cost.

C6 Doberman

I thought Borla made the header for LG? Maybe someone can chime in with the correct answer.

GMRULZ

For a blown car I would go w/ a 1 7/8 AR or Kooks header personally. Especially if drag racing is your primary concern.

I run AR`s and I have either the 2nd or 3rd fastest bolt-on only time for a manual LS2 on our quickest time sticky at the top of this section. The fit and finish and ease of installation were awesome.

The LG`s are great too, and as Spin said will make more low & mid power. Other than the launch though, you will stay in the higher rpm`s in a drag race where the AR`s and Kooks shine. For autocross the LG`s are definetly better, plus are probably more fun on the street.

03 Z-oh-6

Borla does make the headers for LG.

03 Z-oh-6

After some research, I came to the conclusion that Kook's/ARH make very little more power top. Is it more considerable than that?

GMRULZ

Its enough on an average car to equal about a tenth in the 1/4 on a bolt on car. So not very much but there is a difference. With a blown car for drag racing I think he would really benifit from the larger 1 7/8 primary more than header design.

03 Z-oh-6

I never go to the track and no plans for FI, so LGs are perfect for me!

GMRULZ

That would be my recomedation w/ your plans as well.