BMW SOUND (exhaust+Action) BMW M5 Engine 340hp - Direct exhaust!

Play it loud! this Brutal BMW SOUND from Ex- Hillclimb car BMW E21 323i with the BMW M5 engine sound (3.8 liters and 340hp) direct exhaust system with Straight pipe (no muffler) and mechanical fuel injection setup (MFI)
Warm-up exhaust power notes and car sounding on the track with pure engine sounds!
little history:
the e21 series was built to replace the version "02" in 1,975 to 1983 and this was replaced by the E30 series
the more powerful versions of e21 were:
BMW 323 Alpina C1 - 167hp
BMW 323i Schnitzer Turbo - 200hp
BMW 328 Alpina B6 -210hp
BMW 335i Härtge - 218hp
//Racing//
1977 McLaren BMW 320i turbo IMSA Camel GT -M12 F2 engine 650hp @ 900rpm video :goo.gl/YmTCX5
1978 BMW 320 Turbo Group 5 version 900-1000 bhp in the races at some point even 1.300hp in qualy!! with the same engine of formula 1 Brabham BMW video :goo.gl/H99Vce