It's really straightforward. You'll have the seat out in 5 min.
To get to the top bolt you'll need 3' of extensions and a swivel (tape it so it has some rigidity). You'll go over the trans crossmember and up along the tunnel to the upper fastener.
That socket drive feature is often and easily damaged, have a replacement on hand.
Also be careful that...
Look up the William Turbo extraction sockets. They're a little expensive but by far the best extraction sockets on the market. I use them industrially nearly every day. They're much thinner wall than the Irwin or Craftsman options.
Hammer it over the head and give it the beans. It's come right out.
Frank if those bolts are torque to yield they can't be reused for reasons that may not be so apparent those not in the fastener world. Trust me and the VW fastener engineers. Just buy the new bolts unless it's an emergency repair.
I'm working on an in depth post explaining torque to yield and...
PSI is a totally useless once you understand what you're discussing. Pressure is resistance to flow. Intake and exhaust are critical to any performance build. You need to be talking in mass airflow to select a turbocharger, not PSI.
Before you go installing the new cover verify when the timing belt was done last. I'd hate to have your new car throw a belt for simple lack of maintence. As you're probably aware that results in catastrophic damage to the engine.
This is the link you want
At 1:400 PS say it drops the pour point to -70F
"16-OUNCE (PART NO. 1016)
At temperatures above 0°F., add entire contents (16 ounces) to 40 gallons of diesel fuel. When temperatures drop below 0°F. or...