вот ссылкас м5борд
http://www.m5board.com/vbulletin/showthread.php?t=70880
таи есть замеры от СС юса вроде с пауком обещают 60 сил

многие сомневаются
синопсис
Here is a basic translation of these dyno charts.
Pnorm=DIN corrected power at the flywheel
506.3 PS=499.36 HP-OEM power
565.2 PS=557.46 HP-complete Supersprint sport exhaust system
Mnorm=DIN corrected torque at the flywheel
508.9 NM=379.29 tq-OEM power
562.1 NM=414.59 tq-complete Supersprint sport exhaust system
At a gain of 58.1 hp and 35.3 tq this really adds some extra excitement to this already fantastic BMW!
Turner Motorsport is an authorized and recommended sales and install dealer for Supersprint products. They have first hand experience with the BMW e60 m5 and can offer excellent service
Any questions? Please ask! Chris