Is heat wrap necessary?

[kenneth mccoy]

I just bought catted downpipes and was wondering if heat was necessary since the pipes are bigger and may sit closer to PTU and other components.

 

[SaveMelMac]

When I get DP’s I’m going to wrap them. If you can do it, I would.

 

[Zpak]

Anything to help mitigate cooking your PTU fluid is a plus.

 

[SM105K]

If you live in a climate where your don't get a lot of moisture, then yes I would wrap them. If you live where you get of water, I would get them coated.

 

[yaycandy]

Usually heat wrapping headers makes them only last a few years. Not sure how it would act on our downpipes. Fatigue in metal is real, i deal with it in aerospace on much better materials. Livernois downpipes are cheap stainless material, im sure ppe are too

 

[Ecoboost_xsport]

I'm not a fan of heat wrapping. Yes, it does work, but will destroy your pipes over time. Done it a bunch of times on motorcycle pipes and it just kills the pipes after a few years, everytime. It holds moisture and wreaks havoc on the metal. Even stainless pipes aren't immune. Most reputable aftermarket downpipes are made of 304 stainless and even that will oxidize eventually. But what's worse are the welds, the welds are what typically go first.

I would ceramic coat them. Or if your really adventurous, have some downpipes made of 321 stainless. Even more corrosion resistant and holds in heat like ceramic coating does. It's pricey though...

But to your actual question? I would say a better question is:

Is heat management necessary (with regards to exhaust)?

Absolutely it is...

 

[kenneth mccoy]

If you live in a climate where your don't get a lot of moisture, then yes I would wrap them. If you live where you get of water, I would get them coated.

I live in Colorado Springs so it sounds like I should get them coated

 

[Zpak]

I live in Colorado Springs so it sounds like I should get them coated

That’s a good idea.

 

[Ecoboost_xsport]

That’s a good idea.

Yup, way to go.

 

[kenneth mccoy]

Do any of you know anyone who has used VHT flameproof on any exhaust part?

 

[Ecoboost_xsport]

Do any of you know anyone who has used VHT flameproof on any exhaust part?

Anything you spray on with a can will not last. It'll flake off probably within 6 months.

Just pony up for the ceramic coating. Doin it right the first time will pay dividends in the long run.

 

[FiveLeeter918]

... if your really adventurous, have some downpipes made of 321 stainless. Even more corrosion resistant and holds in heat like ceramic coating does. It's pricey though...

whew, and people thought $725 for downpipes was expensive... $140/ft haha

 

[Ecoboost_xsport]

whew, and people thought $725 for downpipes was expensive... $140/ft haha

Lol yeah, it's pricey. It's an option, but not one most, or any, would likely use.