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Old 07-29-2014, 04:26 PM   #1
MarylandSpeed



 
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Drives: 2012 ZL1 & 2010 2SS/RS
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Get and extra $150 off Kooks Signature Series Stepped Headers (5 Sets ONLY!)

We just finished up a big run of these headers, and would like to get some out there on cars.

What we are doing as a promotion for our Camaro5 customers is an extra $150 off our ALREADY LOW sale price!

To get this deal, simply click add to cart at the link below, and price will go down in the cart $150. Once the 5 have sold, the price goes back to normal. If you have questions, call us @ 443-730-9428!

http://marylandspeed.com/kooks-signa...ep-p-3303.html

Below are the details on these headers, which are the most powerful on the market!

Quote:
Kooks Signature Series Stepped headers (PT# 6510-STEP) represent the best header Kooks can make for the Camaro. They feature 1 3/4" primaries stepped to 1 7/8". They also feature an extra O2 bung for wideband tuning, and Kooks standard merge spike, and merge collector. Basically they are a premium header with pretty much every feature for those looking for best you can buy. Being one of Kooks biggest dealers, we are their launch partner for this product and have the exclusive on it.

What is a Stepped Header?
A stepped header is when a header primary expands from one size to another bigger size over it's length. The size of the steps, and their placement along the length of the primary play a huge role in how effective the header is. With these headers, on average about the first one third of the primary is 1 3/4", the rest is 1 7/8".

Why does a Stepped Header make more power?
The advantage of stepped headers is that they allow you to have the best of both worlds. They have the low end TQ of a 1 3/4" header, and the high RPM HP ability of a 1 7/8" header. With these headers, the 1 3/4" initial primary pressurizes the exhaust gas more initially..then the rest being 1 7/8" allows the he header to flow a large amount of exhaust. Think of it like squeezing a hose to squirt someone. If you do it just right, the water is flowing at it's fastest, most efficiant rate. In every application we have sold them for, stepped headers make more power. Another advantage is that they are kind of one size fits all in that they support applications from stock to 700 rwhp.


On to the Results-

In the results below, we tested a 1 7/8" Kooks header vs the new Signature Series Stepped Header on our in house dyno. We did 3 runs 15 minutes apart with the 1 7/8" header, then we changed the headers to signature series and repeated the process. Everything was done on the same day, and the car was untuned to remove that variable. The only modifications the car had were a Rotofab Intake and Borla Catback Exhaust.

Best run of stepped Kooks vs. best run of 1 7/8" standard Kooks-


Three runs with stepped headers-


Three runs with 1 7/8" headers-



Just for the heck of it, here is the same car, with the same stepped headers, but now with an LPE GT9 cam, TVS 2300, and conservative tune. As you can see, the car is making 637 rwhp, which is like 750+ crank. The headers are obviously not a bottleneck up top as peak HP is right at the top of the RPM band.






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Old 08-08-2014, 09:50 AM   #2
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A reminder for everyone! Call us @ 443-730-9428 with questions!
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Old 08-17-2014, 04:39 PM   #3
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Only a few left!
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Old 08-24-2014, 12:41 PM   #4
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Last set at this price!
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