Acceptable quality from Kooks?
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 3,131
Likes: 148
From: Sugar Land TX
Acceptable quality from Kooks?
(SEE POST #12)
Received a reply to my PM from GeorgeR@kooks saying "you will be fine". I had PM'ed him a pic of the collector in my new 1 7/8" Kooks header.
Do you really feel this is acceptable quality? Seems to me the cone welded off center 1/8" will create turbulance? I would have to question his reply particlarly on a heads/cam engine making over 500 HP.
I also have quite a lot of weld build up in each tube as well. And in each tube at each quadrant that the cone is welded.
Anybody else's collector look like mine? I feel the price I paid for these headers the quality should be a little better.
Might mention too that these headers should be cleaned before installing. You can scrap up a lot of metal shaving/oil mixture with one finger in every tube. Not sure this crud will pass the cats.
Received a reply to my PM from GeorgeR@kooks saying "you will be fine". I had PM'ed him a pic of the collector in my new 1 7/8" Kooks header.
Do you really feel this is acceptable quality? Seems to me the cone welded off center 1/8" will create turbulance? I would have to question his reply particlarly on a heads/cam engine making over 500 HP.
I also have quite a lot of weld build up in each tube as well. And in each tube at each quadrant that the cone is welded.
Anybody else's collector look like mine? I feel the price I paid for these headers the quality should be a little better.
Might mention too that these headers should be cleaned before installing. You can scrap up a lot of metal shaving/oil mixture with one finger in every tube. Not sure this crud will pass the cats.
Last edited by 8850; Apr 17, 2007 at 08:23 PM.
Heel & Toe
Joined: Jun 2006
Posts: 18
Likes: 0
Here is my $0.02.
First of all, I want to point out that Kooks does make awesome headers. I have seen a lot of dyno results with their headers and they usually provide very positive outcomes
. The only header that I have seen that compares is American Racing. Both are outstanding headers.
If you are not happy with them, send'em back. Your absolutely right. Paying that kind of money, you want to get the best craftsmanship you can. Kooks is a reputable company and I sure you won't have any problems (provided of course, they are in returnable condition).
From a fluid dynamics & wave theory stand point, you are correct. The offset of the cone would create some turbulent/resistance to exhaust flow. The question is how much? Again, you are correct in that it would affect a N.A. car versus a forced induction one because fluid flow is paramount to achieving top horsepower in a N.A. car.
Bottom line.
If you are going to be doing serious racing with them where every second counts and you don’t want that in the back of your mind when loosing to someone else with an identical corvette & setup, then return them. However, if your just using the car for a daily driver and blowing the doors off of the locals, then you’ll probably be fine.
If it’s the money spent versus the quality of the product received, then return them. I am sure Kooks want all their customers to be happy with their purchases.
Best of luck and have fun!
First of all, I want to point out that Kooks does make awesome headers. I have seen a lot of dyno results with their headers and they usually provide very positive outcomes
. The only header that I have seen that compares is American Racing. Both are outstanding headers. If you are not happy with them, send'em back. Your absolutely right. Paying that kind of money, you want to get the best craftsmanship you can. Kooks is a reputable company and I sure you won't have any problems (provided of course, they are in returnable condition).
From a fluid dynamics & wave theory stand point, you are correct. The offset of the cone would create some turbulent/resistance to exhaust flow. The question is how much? Again, you are correct in that it would affect a N.A. car versus a forced induction one because fluid flow is paramount to achieving top horsepower in a N.A. car.
Bottom line.
If you are going to be doing serious racing with them where every second counts and you don’t want that in the back of your mind when loosing to someone else with an identical corvette & setup, then return them. However, if your just using the car for a daily driver and blowing the doors off of the locals, then you’ll probably be fine.
If it’s the money spent versus the quality of the product received, then return them. I am sure Kooks want all their customers to be happy with their purchases.
Best of luck and have fun!
Safety Car
Joined: Jun 2004
Posts: 4,430
Likes: 81
From: Whidbey Island WA
All the welds were ground on my ARH headers and the merge cones were properly aligned.
Hard to imagine it costing much in terms of any quantifiable loss but I have to admit it would bug me.
Hard to imagine it costing much in terms of any quantifiable loss but I have to admit it would bug me.
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 3,131
Likes: 148
From: Sugar Land TX
Here is my $0.02.
First of all, I want to point out that Kooks does make awesome headers. I have seen a lot of dyno results with their headers and they usually provide very positive outcomes . The only header that I have seen that compares is American Racing. Both are outstanding headers.
If you are not happy with them, send'em back. Your absolutely right. Paying that kind of money, you want to get the best craftsmanship you can. Kooks is a reputable company and I sure you won't have any problems (provided of course, they are in returnable condition).
From a fluid dynamics & wave theory stand point, you are correct. The offset of the cone would create some turbulent/resistance to exhaust flow. The question is how much? Again, you are correct in that it would affect a N.A. car versus a forced induction one because fluid flow is paramount to achieving top horsepower in a N.A. car.
Bottom line.
If you are going to be doing serious racing with them where every second counts and you don’t want that in the back of your mind when loosing to someone else with an identical corvette & setup, then return them. However, if your just using the car for a daily driver and blowing the doors off of the locals, then you’ll probably be fine.
If it’s the money spent versus the quality of the product received, then return them. I am sure Kooks want all their customers to be happy with their purchases.
Best of luck and have fun!
First of all, I want to point out that Kooks does make awesome headers. I have seen a lot of dyno results with their headers and they usually provide very positive outcomes
. The only header that I have seen that compares is American Racing. Both are outstanding headers. If you are not happy with them, send'em back. Your absolutely right. Paying that kind of money, you want to get the best craftsmanship you can. Kooks is a reputable company and I sure you won't have any problems (provided of course, they are in returnable condition).
From a fluid dynamics & wave theory stand point, you are correct. The offset of the cone would create some turbulent/resistance to exhaust flow. The question is how much? Again, you are correct in that it would affect a N.A. car versus a forced induction one because fluid flow is paramount to achieving top horsepower in a N.A. car.
Bottom line.
If you are going to be doing serious racing with them where every second counts and you don’t want that in the back of your mind when loosing to someone else with an identical corvette & setup, then return them. However, if your just using the car for a daily driver and blowing the doors off of the locals, then you’ll probably be fine.
If it’s the money spent versus the quality of the product received, then return them. I am sure Kooks want all their customers to be happy with their purchases.
Best of luck and have fun!
I don't know how far I will take it hp wise. I may want to go heads and cam as I did with my 98 Camaro. I just want to start out with parts that will do the job later on and not have to start replacing what I have already bought. Been there done that with many parts.
Had George@Kooks not told me I would be alright with this poor quality I wouldn't have even posted these pics. But to tell me this is ok quality is not right.
Safety Car
Joined: Jun 2006
Posts: 3,611
Likes: 100
From: Palm Springs,Ca.
2020 C6 of the Year Finalist - Unmodified
I have a new 07 Corvette that I want the best qualtiy pieces I can buy. From other posts concerning Kooks I thought they along with a couple others were quality parts.
I don't know how far I will take it hp wise. I may want to go heads and cam as I did with my 98 Camaro. I just want to start out with parts that will do the job later on and not have to start replacing what I have already bought. Been there done that with many parts.
Had George@Kooks not told me I would be alright with this poor quality I wouldn't have even posted these pics. But to tell me this is ok quality is not right.
I don't know how far I will take it hp wise. I may want to go heads and cam as I did with my 98 Camaro. I just want to start out with parts that will do the job later on and not have to start replacing what I have already bought. Been there done that with many parts.
Had George@Kooks not told me I would be alright with this poor quality I wouldn't have even posted these pics. But to tell me this is ok quality is not right.
I am looking at getting headers to, I will wait and see how this plays out before I decide.
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 3,131
Likes: 148
From: Sugar Land TX
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Racer
Joined: Aug 2005
Posts: 458
Likes: 4
There is no issue here at all, We stand behind our product 100%. If you are not happy please call me and I will give you a RGA # and you can send them back and I will send you another set. 1 866 586 kook ext 308 George R. We look forward to hear from you soon.Thank you sorry for the inconvenience.
Safety Car
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
Excellent customer SUPPORT from a SUPPORTING Manufacturer. The Corvette Forum continues to rock. 
Safety Car
Joined: Jun 2006
Posts: 3,611
Likes: 100
From: Palm Springs,Ca.
2020 C6 of the Year Finalist - Unmodified
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 3,131
Likes: 148
From: Sugar Land TX
Just talked to George on the phone. He is truly an asset to the racing enthusiast. He offered to send out another set of headers, no charge, with an RG ticket from UPS so I don't pay shipping. All I have to do is hand the old set to the UPS driver.
You just can't ask for better service that that. And he is even sending me a couple of T shirts for my trouble. Excellent company to do business.
You just can't ask for better service that that. And he is even sending me a couple of T shirts for my trouble. Excellent company to do business.
Pro
Joined: Mar 2007
Posts: 534
Likes: 8
From: Worcester MA
St. Jude Donor '07-'08
George R and the rest of the guys at Kooks are first class and will take care of all there customers. I had some questions all were answered and all the stuff was shipped quick with no quality problems. Thanks to Kooks 
Heel & Toe
Joined: Jun 2006
Posts: 18
Likes: 0
I thought that it would work out. As I mentioned, they are a great company with a great product and like most companies, want to make sure they meet or exceed their customers expectations.
Kudos to George and Kooks custom Headers
Best of luck with your modifications!
Kudos to George and Kooks custom Headers
Best of luck with your modifications!
Team Owner
Joined: Apr 2005
Posts: 27,596
Likes: 0
From: YOU SEE ... I'M NOT CRAZY ...I'M JUST AHEAD OF THE CURVE
St. Jude Donor '09-'10
Just talked to George on the phone. He is truly an asset to the racing enthusiast. He offered to send out another set of headers, no charge, with an RG ticket from UPS so I don't pay shipping. All I have to do is hand the old set to the UPS driver.
You just can't ask for better service that that. And he is even sending me a couple of T shirts for my trouble. Excellent company to do business.
You just can't ask for better service that that. And he is even sending me a couple of T shirts for my trouble. Excellent company to do business.
