BMW 540i on Dyno with Stock Exhaust
This was the first run of the day and a baseline run for the silencer/resonator removal later in the day. Test run in 4th gear because dyno owner did not want 5th gear (1:1) speeds on his equipment. 270.5 hp @ 5750 RPM 283.3 ft/lb torque @ 4500 RPM Vehicle: 1997 BMW 540i 6 speed Modifications from stock: Royal Purple ATF transmission fluid Electric Fan conversion CDV Removed M3 short shift lever
