I recently installed B&B Bullets on my C6, I am now thinking about buying headers. I have heard alot of people talk about LG Headers and how much they like them. Does anyone have B&B Headers?, if so how do you like them? How do they sound with Bullets? How are they different from LG Headers?

 

I have Am. racing headers w/ my bulletsw and it sounds AWESOME!!
Also the quality of workmanship is outstanding!

 

I would like to hear sound clips of all of the different header/exahst combos that folks have to see which one sounds the best to me. Hopefully everyone loves the way their exhaust sounds to them, but of course, everyone likes something different than the next guy. I am looking for deep and gurguly (is that a word? If it is, I'm sure I spelled it wrong). I don't like the exotic sound. I want muscle. I may have to get a cam to get what I am looking for, but I'm sure the exhaust is the place to start.

 

I just went with kooks 1 7/8 with a jet hot coating and high flow cats

They are being installed tommorow

I have the corsa sport exhaust

 

Here you go LG LT with no cats and Bullets.
http://www.youtube.com/watch?v=DHyyDNzJ7FA

 

Somebody over on the other Corvette Forum installed the BB headers. I just don't like the way the collector, or lack of a collector, look. I went with the LG Pros and made 26 rwhp and 39 rwtq without a tune.

 

Took me awhile but found it. This is the video that glennhl was talking about the car belongs to Chasehunt.
http://s63.photobucket.com/albums/h1...MOV0026305.flv

 

I have a write up about the ARE headers here:

http://forums.corvetteforum.com/show....php?t=1441406

 

I have a question, are headers with no cats such as the LG Pro's or other brands street legal. I know it will be alot louder without the cats but I was wondering if it is legal. This might be a stupid question but I would appreciate some information. Thanks

 

Long discussion on that topic a week or so ago. Net net: No long tube header will meet EPA emissions regulations - with or without cats. (With cats they may pass inspection) ShopDog had an excellent write up on the subject on the aforementioned thread.

 

One of the biggest things I look for on header design is the type of collectors they use. Most of the normal header company's that have been in the business for years, like to cut corners and use the cheaper style lower flow collectors... Basically all the tubes are cut straight off at the end of the primaries before going into the collector. I'm not a fan of those because the air has no direction after the primaries, and can go any which way it wants. Nicer headers will have a "scavenger spike" inside the collector between the 4 primaries. This helps direct the air flow to the center of the collector... getting it out of the header with the least amount of restriction possible. Here's a cut away view of this scavenger spike I am talking about...



Then we have the collector itself. This is what a traditional collector looks like...



This is the kind of collector you'll see on a good quality header like American Racing, or LG. It's a merge collector that shrinks down right after the primaries then goes back up to the size of your exhaust, essentially speeding up the air flow in the exhaust, and in turn causing your car to make more power.



This is just my experience from what I've seen in making headers. Another thing we could go into is coatings, and how much I dislike them on headers Ceramic coated headers always seem to cause detonation. Why? Well everybody jumps on this bandwagon of wanting to keep underhood temps down. Which is great, I love it, whatever you can do to keep underhood temps down is going to help make the motor produce more power. But what we're doing by ceramic coating the headers is we are locking that heat inside the exhaust... Not allowing it to dissipate... This heat now acts as an agent in producing detonation. Almost every car I've ever tuned that had ceramic coated headers, was not able to take as much ignition timing as a car with uncoated stainless steel headers. So the power was greatly reduced because instead of tuning for all out power, I had to tune for detonation. Extra fuel, and less timing... Things that have a great effect on what kinds numbers your car will put down on the dyno, and at the track.


Chuck @ HPE
281-448-1300