180's Can produce 225bhp im told with a remap.

Watch out though they have lots a and lots of problems

Mum had one and part x it for an e46 318ci

Problems she had on a 1999 225 with less than 50k on it.

Turbo went
Electric window motors went (Both)
Dash went awol
Rear suspension arm sheared
Bose Headunit - it would turn on but no buttons on the headunit did nothing.
Lots of traction control errors
ABS system
Glovebox catch snapped (audi wanted nerley £200 for a new one)

It cost her a fortune.... and since we have heard of quite a few people having problems with them...

Personally I thought it was pretty boring to drive...

JD Power Survey:-

Audi TT
Disappointing reliability drags down the TT’s otherwise impressive score. Too many owners complain of engine problems, misbehaving switchgear and loose trim. Running this stylish coupe will set you back quite a few pounds, too, although at least its insurance bills are reasonable. In other respects owners love their TTs. The survey’s respondents praise the car’s performance and ride and handling, and approval for the Audi’s sleek appearance is almost off the scale