Porsche 992 GT3 Undercar Overview

You can see the finned oil pan for the PDK transmission here through the scoop.

The 4-liter engine has some pretty good-looking manifolds that probably work as well as most headers would.  It would be pretty hard to improve on these.

The header/manifold feed into these particle traps, followed by the cats.  Although it seems complicated, it is clean and straightforward.

So there you have it, a good view of the big changes to the front of the 911.  We wonder if Porsche will carry this suspension over to the rest of the 911 model line in the near future. From others that have driven the new GT3, we hear that the new suspension makes a great car even more incredible with much more front grip.  Before you would have to work around some slight understeer with the front of the 911 and now that is completely gone.

It takes generations for Porsche to make major changes to the 911’s design and here is a close look at the latest one!


Porsche USA



  1. “Apparently, Porsche found that direct-injected engines make particulates like a diesel. We assume that the car probably has some sort of regeneration cycle to clean the traps that makes a lot of heat, hence this metal-lined scoop.”
    Dfi engines do create fine particules. It’s mendatory in Europe now to have a GPF on all engines. The only difference is EU spec cars (for PORSCHE) have a differential pressure sensor, US cars do not.
    The normal regen cycle on gasoline engines takes place when you’re coasting, it’s the only time where a gasoline engine has enough oxygen in the exhaust to burn the particules.
    There is also a forced regen mode. I’m not sure but I think it uses secondary air injection to get oxygen in the exhaust. Porsche informs that it must be performed with a lot or airflow passing under the car because with the car stationnary, the red hot GPF could potentially damage the road it’s on (and everything around it).

  2. I really like the diffuser to brake scoop design.

    My theory on the move to SLA double wishbone front is that the Cayman was posing a serious track threat and they needed to further differentiate the cars with a significant suspension upgrade on the 911.

    Also, they could finally put the real GT3 engine in the Cayman GT4 RS without actually eclipsing the 992 911 GT3.

  3. Great article. Would have been great to get some more zoomed out overall photos of the underside to understand how much of the floor is flat bottomed. The number of aero details is staggering

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