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Circle D & Kooks LT


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OK gentlemen, this will be a thread about my experience with the Circle D torque Converter and Kook`s headers. I ...


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Old 06-03-2017, 08:10 PM   #1 (permalink)
 
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Default Circle D & Kooks LT
OK gentlemen, this will be a thread about my experience with the Circle D torque Converter and Kook`s headers. I will try and cover everything in detail, packaging, quality, instalation and performance. The TQ I will not be installing myself, if I had access to a lift I would but I was under the truck and decided not to. Found a shop next to work that will do it for $400 this coming Tuesday.

First thing is pakaging; the Circle D came with heavy duty foam padding on all 4 sides, Beer quzie and bolts.I am very impressed with the pakaging.
The Kooks pakaging not so good, the headers and mid pipe came in 2 separate boxes, both the headers and mid pipe pieces were only wrapped in paper, no padding at all. Something to consider.
Next would be the visual inspection; Circle D is absolutely beautiful, very well made. You can tell its custom hand made Multi Disc. Very impressed, hope it performs as well as it looks.
Kooks not so much, honestly very disappointed. Maybe it's because I was a certified welder 20 years ago but not impressed. Every primary has marks on them from the bending process, like they didn't use enough padding while they were bending them. If my truck was a show truck these headers would be going back to Kooks. The welds were the primary meet the heads at the engine are average at best. The the exhaust gas transition from the engine heads into the headers is not smooth, they left a little lip on the inside of the primarys.
I hope they perform Much better than they look.
The Kooks will be ceramic coated before there installed.
Over all I'm very excited my 2013 RCSB is getting a shot in the arm but I do want to give a fair review on all aspects.
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Old 06-03-2017, 08:55 PM   #2 (permalink)
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Nice good write up. I want to eventually got some headers for mines. After there installed let me know how the gas milage and throttle response is better or same


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Old 06-03-2017, 09:23 PM   #3 (permalink)
 
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Originally Posted by 02ramboi View Post
Nice good write up. I want to eventually got some headers for mines. After there installed let me know how the gas milage and throttle response is better or same


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The throttle response is something I can Try and articulate but the gas milage I cannot because of the Torque Converter. High stall TQ usually reduce gas milage but I have no personal experience. I will report everything I can.
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Old 06-03-2017, 09:25 PM   #4 (permalink)
 
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Scratch marks on the primarys, hard to see in the pic but ruff when you run your fingers them.
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Old 06-03-2017, 09:29 PM   #5 (permalink)
 
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Lip on the inside of the primarys, not all of them have a lip but you can see the two in the pic do. Maybe that's normal but not a quality job in my opinion.
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Old 06-05-2017, 03:32 PM   #6 (permalink)
 
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Despite the imperfections I'm looking forward to running these headers. Sending them out this week to get coated. But first my 3400 stall is going in tomorrow
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Old 06-05-2017, 05:19 PM   #7 (permalink)
 
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I think most of us agree that the ARH are the "best"(and most expensive of course) long tubes, but I guess I'm a little disappointed in the Kooks. I was under the impression that the quality would have been better. I hope they work out for you. Anxious to hear about how you like the new TC. Should be a "blast" off the line.
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Old 06-05-2017, 08:11 PM   #8 (permalink)
 
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Originally Posted by Pull Ya View Post
I think most of us agree that the ARH are the "best"(and most expensive of course) long tubes, but I guess I'm a little disappointed in the Kooks. I was under the impression that the quality would have been better. I hope they work out for you. Anxious to hear about how you like the new TC. Should be a "blast" off the line.
Jay
I've asked around on the ARH headers but never got an answer or just missed the response, but maybe you know....
I'm wondering if the ARH headers come together at the collector in a order of firing order in either a clockwise or counterclockwise fashion... To me this would be the only difference in the ARH vs Kooks that would lead me one way or the other... Kooks are a great product but sad to read some not so good quality.

But @HammerHead it's not just cause you are a welder, I am a novice/amature welder fabricator at best and I am that picky also.... I see quality or lack there up better than I think I can produce it myself...


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Old 06-05-2017, 08:30 PM   #9 (permalink)
 
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Can't answer your question about the ARH. Maybe Matt can.
Jay


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Old 06-06-2017, 08:28 AM   #10 (permalink)
 
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Originally Posted by Pull Ya View Post
I think most of us agree that the ARH are the "best"(and most expensive of course) long tubes, but I guess I'm a little disappointed in the Kooks. I was under the impression that the quality would have been better. I hope they work out for you. Anxious to hear about how you like the new TC. Should be a "blast" off the line.
Jay
The minor imperfections aren't a deal breaker for me; its going to be fitment. I know they will perform better than what I have now (stock log header) LOL.
But being able to bolt the system to the truck in my garage is the most important thing for me.

Originally Posted by R/T_Fire View Post
I've asked around on the ARH headers but never got an answer or just missed the response, but maybe you know....
I'm wondering if the ARH headers come together at the collector in a order of firing order in either a clockwise or counterclockwise fashion... To me this would be the only difference in the ARH vs Kooks that would lead me one way or the other... Kooks are a great product but sad to read some not so good quality.

But @HammerHead it's not just cause you are a welder, I am a novice/amature welder fabricator at best and I am that picky also.... I see quality or lack there up better than I think I can produce it myself...
I have no idea about the clockwise vs. counter clockwise; anyone know the difference? Or the importance between to two?


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