Rennolazine

Does the 991.2 have an underbody splash shield or is the engine and exhaust system exposed to the elements?

LexVan

Exposed.

Rennolazine

Anyone install this from suncoast? Does this offer any real protection? 9

abe

Hi..
I do not know if it will help...but my 2013 991 only has 23k miles (it did live in Chicago for a while) and the rust on the nuts/bolts that hold the center muffler to the cats, the exhaust tips, and bolts on the water pump and other areas are rusted beyond belief. I believe that a guard like that could help. With a new car...I would get it unless someone can show there will be some harm to the engine....like overheating and poor ventilation.
I would also call them because the more I looked into it the more I think this may not fit a base 991 and it may be for a GT model. It looks like part 991 504 609 03.

Abe

STG

No such OEM cover exists other than the Vorsteiner diffuser which covers that area.

That area underneath needs ventilation. ALOT of heat with the engine, oil pan, and mufflers.

Why wanting to cover it anyway?? First the rear wheel wells now this??

Rennolazine

Salt. I would put it on in october and remove in april

...when the car is on jacks to swap wheels

erko1905

You should be washing the undercarriage regularly if you're driving on salty roads.

I wouldn't mess w the ventilation of that area.

Rennolazine

Would it be sufficient to just pressure rinse about once every week or two (when the snow melts)? How do you get under there its so low?

erko1905

Yeah that's pretty much what I do. Especially the rear area w the engine/exhaust bits (everything else is pretty much covered) - a quick rinse seems to do it, nothing crazy. I put the car on a lift whenever I get the chance and the underside of my car looks pretty clean.

Having said that I don't DD this car so the winter/salt exposure is limited mostly to ski trips, after which I wash the car right away. It could become a pain if you DD in snow/salt every day.

Rennolazine

Makes sense. Your avatar pic is legendary btw. Im gonna call suncoast and ask them whats the deal with this piece just for kicks.

erko1905

Thank you. The avatar pic doesn't help my car's resale value it seems - I was asking around to confirm value in HFS and immediately I got a put 4 wheels down first response which I guess should've been expected

That picture was taken at Le Circuit Mont Tremblant, and to Mont Tremblant I also drove my car for a ski trip. These cars are so competent in snow I think it's a shame that most people don't drive them during winter.

Yeah def ask them just for informations sake - but the car seems to emit a lot of heat from that area after spirited drives so I'd at least carefully monitor all temps after install if you end up giving it a try.

Edit - I just realized you have a 991.2 so disclaimer my experience has been w a 991.1

chuck911

Not only heat. More so than any other manufacturer Porsche pays attention to airflow- over, around, UNDER and THROUGH the body. All of it. Its how they came up with the fender vents on the RS. Its why the carbon fiber underbody panel of the Carrera GT is polished to a mirror finish. They didn't do it to look good. They did it for aero. Even though it is under the body where no one will ever see. They put panels where they need them. If they do not put a panel, there is a reason for that, too.
On the 991 specifically there are airflow management changes between the 991, the S, and the GTS. Again, not talking obvious wings and spoilers, talking unobtrusive under body changes.

Not saying they are perfect. They would seem to have missed the ball not putting a protective screen ahead of the front radiators, and they should have put a tiny little lip on the triangle trim by the side mirror to prevent buffeting.
But in general, trying to improve a 911 with a splash panel, well the metaphor for that is something like trying to fix a helicopter with a ball peen hammer.