[Hab1ner]

I received my downpipes last week and they seem to have a gray/white type of coating on them. Did anyone else receive their DP’s with this coating?

Sorry for the crappy camera phone pictures...

[rosskie]

they might have been sand blasted

[Jeff@TopGearSolutions]

ceramic coating

[CUTigers]

Just a color ceramic coating? I know you can get multiple colors and stuff.

[E90SoFlo]

Did you order them coated?

[Beemw335]

Be happy lol
Vrsf gave tou free ceramic coating because you had to wait.

[BMWsky]

That's awesome, you got a nice gift.

[Tiago@VRSF]

There's a saying about a gift and a horse. Not sure if you've heard it before

As I posted in the previous thread, these are ceramic coated. The coating serves as a thermal barrier which keeps heat inside the pipe rather than radiating heat onto the surrounding components (engine, intake, transmission, ect). This is an $80 option but if you prefer the polished option we can exchange them for you. I have quite a few people who would be interested in the ceramic set

[Hab1ner]

No, I did not order them coated. I was surprised to see them like this because all of the reviews and comments showed them as just stainless steel.

[Hab1ner]

Originally Posted by Tiago@VRSF

There's a saying about a gift and a horse. Not sure if you've heard it before

As I posted in the previous thread, these are ceramic coated. This is an $80 option but if you prefer the polished option we can exchange them for you. I have quite a few people who would be interested in the ceramic set

Tiago...I am not complaining...just surprised and excited to have recieved my DP's. I was just not expecting them to be coated. Thank you again for the extra option and great product and service!

[Tiago@VRSF]

No problem my man! Don't gets me wrong, I don't see this as a complaint, I'm just trying to inform!

[CSL335i]

Ceramic coating is one of our favourite fields of improvment around engines and related parts. We are also developed a special ceramic coating structure, which can stand against really high temperatures and pressures.

I am also rebuilding my n54 engine and soon will have two custom made single-scroll turbo with custom made exhaust manifolds. Of course applied with ceramic coating.

Specific areas, where i will apply ceramic coating:
- on piston head
- on the top of the cylinder, including the top of the valves
- exhaust port outlets internally in the engine
- exhaust manifolds (you should apply ceramic coating internally and externally of the manifolds)
- turbos (internal, external)
- downpipes (internal, external)

With a properly designed ceramic coated engine, you can have greater VE and you can decrease the heat stress of the engine by 30% or you can use extreme ignition. The engine gives you the most power just before knocking, but in case you have large pressures and temperatures you should use ceramic coating internally as well othervise...
Ceramic coating in engines also improve fuel burning and make your engine more resistant againts lean AFR.

Example: last time we built a 600HP Audi S2 I5 engine and applied ceramic coating in the engines. With ceramic coating you can have smooth idle even with 20:1 AFR (which is pretty lean). Without ceramic coating, your idle is terrible on that given AFR.

Back to this downpipe. Using ceramic coating internally and externally of the downpipe will give you the best thermal protection.