This Audi 8V RS3 owner decided that instead of pushing the stock internals he would upgrade them with forged pieces and then keep pushing the envelope. For now, he is on a hybrid 2.5 TFSI turbocharger from Turbo Systems located in Lithuania.

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Most of us likely would discount a Lithuanian turbo upgrade option but the numbers sure look good on a turbo they rate to 650+ hp:

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They have plenty of other turbo options for other platforms so we will definitely watch closely for results.

As for the engine internals, the forged pistons are Mahle units sourced from Eurocode at factory compression. The rods are from CP-Carrillo.

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The owner can now push further and with a bigger turbocharger if he likes with some peace of mind.