The 2.5T tunes hard (034 E85 tunes reach ~585 hp at the crank, reversible to pump gas), so confirm the exact tune and that it can be flashed back, scrutinize exhaust descriptions (some listings overstate the parts fitted), check that correct-spec oil was used, and confirm emissions legality for tuned cars. On abuse worry, owners note the VCDS launch counter is essentially meaningless — real evidence of hard use matters more.
A tuned market — verify tune, exhaust, and abuse
Audi TT RS (8S) · buying-advice