i had my volvo 2001 s40 SE ("sport version from euope" or something like that")... for over two years , i replaced the turbo with a 14T, full exhaust, ecu tune to euro spec 14t upgrade, and for shits put on a intake which really wasnt needed but made the recurcultive boost valve sound really nice..
wish i had the car still.. i would estimate around 230 whp.. and it would scoot and still AVG 29 mpg city/highway... it was in the shop twice... once for brake's and rotors and one for the turbo/ecu upgrade.. other then that i had it for 60K (48K-108K) and never had a problem... and i beat the hell out of it alot and it just kept on going... im in the market now for a s60r as soon as the denali is paid for... You get alot of shit driving a volvo really its a great car for the money.