Bare 409 Headers vs Coated

Ratket · Jul 7, 2017

I personally like header wrap- I've used it before and it's a pretty reliable cheaper alternative. Plus u can get it in different colors - just wrap em before u install them.

Johnnymac2k6 · Jul 7, 2017

Ratket said:
I personally like header wrap- I've used it before and it's a pretty reliable cheaper alternative. Plus u can get it in different colors - just wrap em before u install them.

and void any warranty, and promote rust, and back heat up into the cylinder heads.... not for me...

BadRam14 · Jul 7, 2017

DailyRam said:
Really good info.
the 1-3/4" are supposed to fit a lot better than the 1-7/8" from what I've read.
i hadn't thought of header paint, that's a good call.

I installed my JBA LT headers last weekend and I just sprayed them with VHT Flame Proof before install. I only had a problem with getting the Y-Pipe pieces to come together. Other than that, the install was really simple.

chrisp2493 · Jul 7, 2017

I did pacesetter headers, danced them and put 3 coats of vht exhaust paint on them. This is them about 8 months later. I live in the rust belt of Ohio and we have a lot of salt

Ratket · Jul 7, 2017

How would wrapping your after market headers with header wrap void warranty? I live in a High desert- not much moisture here except in the winter. I've only header wrapped the pipes on my toys previously and they never showed rust. In a humid environment they may collect moisture.

Gamester · Jul 7, 2017

DailyRam said:
I'm looking at some LT Headers for my 2014 Ram, and the question i have is about the coating. For the JBA 1-3/4" bare 409's what is the benefit of the coating? This is not going to be a show truck and i don't need them to stay bright and shiny.
Are there other benefits from having them coated that i'm missing?
Trying to justify if i need to spend the additional green. Also, do these bolt right up to the stock Y-Pipe?
Thanks guys.

I went with ARH LTs and their Y-pipe with JET HOT Coating. Very happy with them.

Yea, the coating mainly just keeps the temps down a bit and makes them look nice.

Johnnymac2k6 · Jul 7, 2017

Ratket said:
How would wrapping your after market headers with header wrap void warranty? I live in a High desert- not much moisture here except in the winter. I've only header wrapped the pipes on my toys previously and they never showed rust. In a humid environment they may collect moisture.

Google it and let me know what you find. Wrapping headers voids the warranty on every reputable header companies headers on the planet. Wrap is a wives tale of performance gains, and a bigger wives tail of any heat protection beyond perhaps physical contact with wires. It jams heat back into the heads, retains moisture, etc. Wrap is terrible. Fact...

Hemissary · Jul 8, 2017

Header coatings are for looks only. The coatings being offered have precious-little bearing on heat conductivity, don't waste your money.

Hemissary · Jul 8, 2017

..,,,

stoviAZ · Jul 8, 2017

Anyone tried using header paint at home? I think they use rust inhibitors. If only worried about rust might be a cheaper option that ceramic coating from mfg

Sent from my LG-H910 using Tapatalk

stoviAZ · Jul 8, 2017

Johnnymac2k6 said:
Yeah they had one little ding in them, and someone tossed them on the clearance rack for $200.lol still had bolts, o2 extensions and gaskets. So i snagged them!

I keep hearing that same thing about rustoleum getting better and better. Some tell me its even better than por-15 for regular chassis type painting and rust prevention.

I painted the entire underside of my fj with rustoleum rattle can with rust inhibitors. A bunch of dudes on the jeep forums were recommending it.. Looks brand new after 7k miles and tins of water/mud

Sent from my LG-H910 using Tapatalk

Hemissary · Jul 8, 2017

They work well, I'd suggest going to a place like Home Depot and purchasing BBQ paint. I think you're limited to black or white and it's a lot less expensive than a speed shop. I've painted the entire exhaust system with it and it still looks the same as the day I sprayed it.

If they are stainless steel, leave them as-is.

Hemissary · Jul 8, 2017

Note that it is very important to properly degrease the headers first. Even more important is to not touch(!) the cleaned surfaces with your oily fingers / hands prior to paint.

charonblk07 · Jul 8, 2017

I've gone through all the different coatings and wraps on my truck for various reasons. The ARH heads I had coated ended up still transferring enough heat from my exhaust to melt wiring and plastic clips 2" away. I managed to catch a wiring harness of fire at one point because of how how the headers were getting. The coating also started to flake after 1 year from some of the joints because of the heat expansion with my system.

I have since wrapped the headers (what warranty, lol) but beware the header wrap you get. I thought the black header wrap would be awesome but they don't tell you that it can bleach out under heat and it looks like utter crap when that happens. Since I swapped all the wrap to the volcanic glass wrap they have held up beautifully for 3 years now. I have also had zero heat related issues with the harnesses and hoses around the headers since they were wrapped.

The last pic is the coated headers after 1 year of use

Hipps2000 · Jul 8, 2017

Nice job on the wrap....I had my coated inside and out and still look good about 2yrs now! Gotta do something for the additional heat.

Wild one · Jul 8, 2017

If any of you guys decide to try wrapping your headers or exhaust,a tip to make working with the stuff nicer and a little bit more healthy to handle (ie:less itchy),is to soak the roll of wrap in water for a bit before you use it.

HammerHead · Jul 8, 2017

A lot of misinformation about Ceramic Coating on this thread. Bare Headers can get 800+ degrees ferinhight when running hard, ceramic coated about 300 degrees Fahrenheit. I've seen way to many melted wiring at the track. One guy told me his headers warped a coil pack. Get the ceramic coated, trust me.

Hemissary · Jul 9, 2017

HammerHead said:
A lot of misinformation about Ceramic Coating on this thread. Bare Headers can get 800+ degrees ferinhight when running hard, ceramic coated about 300 degrees Fahrenheit. I've seen way to many melted wiring at the track. One guy told me his headers warped a coil pack. Get the ceramic coated, trust me.

You're gonna claim a 500F drop in radiated thermal energy...seriously? Prove it.

HammerHead · Jul 9, 2017

Hemissary said:
You're gonna claim a 500F drop in radiated thermal energy...seriously? Prove it.

https://youtu.be/O1bXPNy1Yn4

Proven!!!!!!!

Hemissary · Jul 9, 2017

HammerHead said:
https://youtu.be/O1bXPNy1Yn4

Proven!!!!!!!

aaahahahahahahahaha, come come now - still bullsh!t. Not only do they use the IR tool incorrectly, there's a HUGE difference in surface emissivity for starters, the claim of a 500+F difference in temperatures is not repeatable. Not even the coating manufacturers make such claims.

This is also(!) supported by the zero gains in performance they recorded. IF(!) there was actually a 500F delta the increase in gas velocity would show up in repeatable HP / TQ gains. They measurement none!

Finally, if you haven't noticed, popularhotrodding is a rolling advertisement. Ask them about E3 sparkplugs :^D

Bare 409 Headers vs Coated

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