Integrated Engineering VW 1.8t Forged Rods For Late 1.8 Turbo Engines 20v 19mm Audi
Thats all you need, they are "drop in" rods that use your stock pistons.
To put them in while the engine is in the car you need to removed the oil pan, remove the head to access them.
You would need new headgasket, headbolts, oil pan seals, rod bearings and a few other small things.
Whats mods do you have?
the rods handle 300+ hp better if your torque spike is not crazy.
when the torque spikes really fast its more likley to bend them.