2005 RS Fuel Filter + Injector Parts Numbers?

I've recently gotten a P0171 code and I'm trying to find the correct parts to replace the fuel filter and injectors for my 05 RS.

I started pulling the spark plug wires out while the engine was running and there was no change in idle when I checked cylinder 4. There's also a noticeable fuel smell when the car is on.

I believe the the 05 has the in-tank fuel filter which I think I found.

For the injectors I can't find information on what cc the oem ones are after searching many sites. Anyone know what it is?

Thanks