here are some prices that I have gotten from speedinnovation on mbklasse.com/forums

W203s: $450 - 230 (m111/m271), 240, 320s
W203s: (06-07) $550 - 230 / 280/ 350
W203s: (AMG) $700 - C32 / C55

E36 (non M3) $250
E46 (non M3) $450 (323/325/328/330 / Ci/i)
E90 (non-T) $550
E92 (335i) $700 (guys, they HAVE boost)
E46 (M3) $500 (guys, they have no boost )

B5/B6 1.8T - $350 (same goes for the VW variants - but contact me)
2.0T FSI $450 (YES, we can do, of course - and generate same amount of power as APR on their 93 octane tuning that we do on our 91 octane tuning )

All others, shoot me an e-mail

Crossfire 3.2's $450
Crossfire SRT-6 $700

MINI 1.6s (all of em) $300