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header question

 
Old 07-11-2019, 10:26 AM
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ttboyvette
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Hi guys,

So down the road I plan to add a supercharger.... but not for about 2 years.I just bought a 2010 GS 6 spd conv. I have been thinking of a minor upgrade that would add a little power and sound now and would be something that more than likley I would need/want later with the supercharger add anyway. I never plan to race the car at a drag strip or track the car. I just will street drive the car. In my previous C5 i had 530 rwhp supercharged so I will want for this car to be ballpark 600 rwhp. that all being said.... will i want headers (i would assume yes) If yes which brand and what size? I would like coated as the look nice and clean and stay that way. I plan to use cats..... what do you recommend? headers now for the fun of the extra power and sound or just wait until I do the Super charger?

Also what will I all need the have a safe and reliable SC set up without doing more than I need..... What is the ideal money conscious but yet not money foolish approach? what this should I look for used and what should I make sure to buy new? and is there better times of the year to buy that others?

Thank you very much ahead of your responses for your input. I am trying to plan.

Thanks,

Tom
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Old 07-11-2019, 10:35 AM
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Kooks 17/8 and a good tune will really wake the car up.
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Old 07-11-2019, 09:23 PM
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Thanks I think I will buy a set from custom corvette accessories they are running a good sale on kooks jet hot coated
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Old 07-12-2019, 12:09 AM
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I have a 2013 M6 Grandsport. I installed kooks 1 7/8 headers and kooks catless mid pipe. I have the npp exhaust and left that on the car. My car dynoed 386whp before and 419whp after. I did that last year. I just had an a&a supercharger installed with meth injection. My car dynoed 638whp after the install. I would guess without meth you would be right around the 600whp mark.
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Old 07-12-2019, 01:44 PM
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Z06/ZR1 manifolds to tips isn't a bad option either IMO. I'm still running them even with a supercharger at 13-14psi of boost and the cats have held up for years... they won't get as much gains as long tubes, but they are quieter and I don't have any fuel smells to deal with either.

Last edited by schpenxel; 07-12-2019 at 01:45 PM.
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Old 07-12-2019, 04:44 PM
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I decided to go with a set of 1 7/8 kooks with Jet Hot and high flow cats and x-pipe, from Chip at Custom Corvette Accessories. Great guy! Great price! Great service!
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Old 07-12-2019, 05:14 PM
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Those headers are made from quality 304 stainless. No real need for coatings put on them.

Save a few bucks by not having them coated .... but it's your money, not mine.
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Old 07-12-2019, 05:33 PM
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The coating was part of the special. This way they will not discolor and will always look good. I like that
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Old 07-12-2019, 08:49 PM
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Originally Posted by ttboyvette View Post
I decided to go with a set of 1 7/8 kooks with Jet Hot and high flow cats and x-pipe, from Chip at Custom Corvette Accessories. Great guy! Great price! Great service!
Yep, he sure is. And kooks are by far the easiest headers to install. I did my 2Ē kooks in one afternoon, all by myself. Didnít have to lift the engine, remove the starter, or any of that. And they came with s/s State 8 locking bolts too, which was a nice touch.
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Old 07-12-2019, 08:52 PM
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Originally Posted by Turbo6TA View Post
Those headers are made from quality 304 stainless. No real need for coatings put on them.

Save a few bucks by not having them coated .... but it's your money, not mine.
The ceramic coating is more for thermal insulation than appearance/protection. Makes a big difference with underhood temps. Wish I had it on mine...
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Old 07-13-2019, 02:39 PM
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Originally Posted by CI GS View Post
The ceramic coating is more for thermal insulation than appearance/protection. Makes a big difference with underhood temps. Wish I had it on mine...
Seems like jet hot has a lot more benefits than negatives so I am glad I got headers with the jet hot coating. The only down fall would be the added cost and the possiblity of blowing out my high flow cats..... but not sure if that truly happens because of the jet hot coating?
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Old Today, 01:08 PM
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Default high flow cats

Originally Posted by ttboyvette View Post
Seems like jet hot has a lot more benefits than negatives so I am glad I got headers with the jet hot coating. The only down fall would be the added cost and the possiblity of blowing out my high flow cats..... but not sure if that truly happens because of the jet hot coating?
Question about High Flow cats with supercharger. my car is not currently supercharger but someday I plan to. Did I make a mistake to order Kooks 1 7/8 with Jet Hot coating headers with the high flow catted X-Pipe?
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Old Today, 02:49 PM
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Nothing wrong having cats with a supercharged engine
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Old Today, 03:02 PM
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ttboyvette
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The support guy at Kooks claimed that the High flow cats would blow out and end up in my mufflers when I add a supercharger to them? he recommended "green cats" or catless off road pipe.

I already recieved my jet hot coated 1 7/8 Kooks headers and my high flow catted x-pipe. Just want to make sure there is no regrets with what I bought. Once they are installed there is not turning back.

Any idea if there is a down side to the jet hot kooks vs the plain stainless kooks? I never plan to go over 600 rwhp with my car
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Old Today, 09:52 PM
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It's hit or miss, depends on tune and how much power you end up making. Some will hold up, some won't. I was doing 165mph in the 1/2 mile with cats on mine and it was fine, but some people lose them a lot earlier than that. Their green cats are supposed to hold up to higher hp applications better. I don't know what's different about them.
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