Kooks header without coating? - Page 3

Laidoffsick · 05-01-2025, 02:46 PM

I have the CSP 2" LTH (made by Kooks) and went with the Jet Hot 2500 coating. Melt that main wire harness and you'll pay way more than the coating trying to trouble shoot the issue and fix it. Buy once, cry once. Not worth the risk of putting headers on without some kind of coating.

Dynamical · 05-01-2025, 08:31 PM

Quote:

Originally Posted by Laidoffsick

I have the CSP 2" LTH (made by Kooks) and went with the Jet Hot 2500 coating. Melt that main wire harness and you'll pay way more than the coating trying to trouble shoot the issue and fix it. Buy once, cry once. Not worth the risk of putting headers on without some kind of coating.

Are you saying even after relocating the harness you can still burn it? Did you relocate yours?

2023ZL1RapidBlue · 05-04-2025, 12:05 PM

Quote:

Originally Posted by Laidoffsick

I have the CSP 2" LTH (made by Kooks) and went with the Jet Hot 2500 coating. Melt that main wire harness and you'll pay way more than the coating trying to trouble shoot the issue and fix it. Buy once, cry once. Not worth the risk of putting headers on without some kind of coating.

I'm very interested to know the same question that Dynamical is asking. Did you melt the harness even after getting your headers coated?

IndyZrider · 05-04-2025, 12:41 PM

Quote:

Originally Posted by 2023ZL1RapidBlue

I'm very interested to know the same question that Dynamical is asking. Did you melt the harness even after getting your headers coated?

No....he's saying coat them so you don't have to worry about it...either way moving the harness is a must imo....

2023ZL1RapidBlue · 05-05-2025, 08:48 PM

Quote:

Originally Posted by IndyZrider

No....he's saying coat them so you don't have to worry about it...either way moving the harness is a must imo....

I assume you moved thr harness in yours as well?
I'm gonna have to look into this before I drop the car off.

clg82 · 07-08-2025, 01:03 PM

Quote:

Originally Posted by 2023ZL1RapidBlue

I assume you moved thr harness in yours as well?
I'm gonna have to look into this before I drop the car off.

I know this thread is a couple months old, but does anyone have a picture of the wiring harness you guys are referencing? Also how much does it cost to add the coating?

RobZL1 · 07-08-2025, 01:42 PM

Quote:

Originally Posted by clg82

I know this thread is a couple months old, but does anyone have a picture of the wiring harness you guys are referencing? Also how much does it cost to add the coating?

I got you, bro. Red arrows point to the large harness that I had already heat taped and pushed back toward the strut tower, and also the hard brake line that I heat taped for good measure. The brake line was closer to the header than the wire harness. The harness sits on the frame rail, but tends to push toward the header. Mine was not too bad, so I re-bent it a little and ensured that it was staying put. Some people have put a clip on it, or put it on the other side of the coolant reservoir.

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Name: Screenshot 2025-07-08 133956.jpg
Views: 145
Size: 240.0 KB

clg82 · 07-08-2025, 03:18 PM

Quote:

Originally Posted by RobZL1

I got you, bro. Red arrows point to the large harness that I had already heat taped and pushed back toward the strut tower, and also the hard brake line that I heat taped for good measure. The brake line was closer to the header than the wire harness. The harness sits on the frame rail, but tends to push toward the header. Mine was not too bad, so I re-bent it a little and ensured that it was staying put. Some people have put a clip on it, or put it on the other side of the coolant reservoir.

Attachment 1165875

Thanks Rob, appreciate your help!

SOCAL.M6.ZLE · 07-20-2025, 01:10 AM

Quote:

Originally Posted by clg82

I know this thread is a couple months old, but does anyone have a picture of the wiring harness you guys are referencing? Also how much does it cost to add the coating?

Great question on the cost... I paid around $800 to coat my entire system from header to axle but was not happy with the finish / performance, so I decided to wrap mine also. Early testing looks promising, more data to follow...

Would love to know what others have paid for the JetHot...

tortilla-flats · 07-20-2025, 11:36 AM

Quote:

Originally Posted by SOCAL.M6.ZLE

Would love to know what others have paid for the JetHot...

Just got mine (ARH) done.

$545 (2k coating)
$240 2-way frieght w/insurance

Megahurtz · 07-21-2025, 08:56 AM

For your normal bolt on street car, uncoated QUALITY stainless steel headers is a non issue. If you start making 900+ wheel HP and race the car at the track...you want to start considering having headers coated.

Out of all of the headers we've installed, only a handful were coated. Never had an issue on any of the cars over many years, coated or uncoated.

JSH · 07-21-2025, 10:53 AM

Quote:

Originally Posted by SOCAL.M6.ZLE

Great question on the cost... I paid around $800 to coat my entire system from header to axle but was not happy with the finish / performance, so I decided to wrap mine also. Early testing looks promising, more data to follow...

Would love to know what others have paid for the JetHot...

My wrap is effective, but I've never been comfortable with the appearance, so I'm sending them to Jet Hot for a Classic Polish coating

clg82 · 07-21-2025, 11:13 AM

Quote:

Originally Posted by Megahurtz

For your normal bolt on street car, uncoated QUALITY stainless steel headers is a non issue. If you start making 900+ wheel HP and race the car at the track...you want to start considering having headers coated.

Out of all of the headers we've installed, only a handful were coated. Never had an issue on any of the cars over many years, coated or uncoated.

This tracks with what the shop said that will be doing my Kooks headers. Said out of all of the headers they've installed they've never had a car return because it burned up that wiring harness. Or any harness for that matter. Knowing how I am though, I do plan on moving those wiring looms away from the headers and adding some extra heat tape. Better safe than sorry.

RobZL1 · 07-21-2025, 12:19 PM

I don't think Jason (ZL1Atlanta) has his monster diameter headers coated for what it's worth.

05-01-2025, 02:46 PM	#29
Laidoffsick Drives: Camaro ZL1 Join Date: Apr 2023 Location: Albuquerque, NM Posts: 24	I have the CSP 2" LTH (made by Kooks) and went with the Jet Hot 2500 coating. Melt that main wire harness and you'll pay way more than the coating trying to trouble shoot the issue and fix it. Buy once, cry once. Not worth the risk of putting headers on without some kind of coating. __________________ 2022 ZL1 Red Hot. Mods: OEM 1LE 19" wheels, PS4S tires 325/305, LED side markers, Rock Guards, 2" CSP Longtube Headers (made by Kooks), Catless, Rotofab Big Gulp, DSX Flex Fuel, Soler Performance LT5 ported throttle body w/ adapter plate, MSD Plug wires, LSA SC Reservoir upgrade, Custom tune, E54 w/91 Octane, 677 rwhp, 714 ft/lb.

07-21-2025, 08:56 AM	#39
Megahurtz Snackbar Tuning Drives: 2023 SGM ZL1 Join Date: Oct 2016 Location: Florida Posts: 1,513	For your normal bolt on street car, uncoated QUALITY stainless steel headers is a non issue. If you start making 900+ wheel HP and race the car at the track...you want to start considering having headers coated. Out of all of the headers we've installed, only a handful were coated. Never had an issue on any of the cars over many years, coated or uncoated. __________________ GM Gen V Calibrator

07-21-2025, 12:19 PM	#42
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,805	I don't think Jason (ZL1Atlanta) has his monster diameter headers coated for what it's worth. __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // BMR MM // BC Forged KL13 Mods being installed- oil pump, cam, ported heads, dual in-tank, Goliath and XDI, corn, etc., etc.

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