I filmed this cool BMW E21 with BMW M5 engine "3.8l 340hp" + mechanical fuel injection setup "MFI" .. loud Straight pipe exhaust (no muffler) play it loud!

[ame="http://www.youtube.com/watch?v=MQfnzXE2ybM"]BMW M5 Engine in old BMW e21 - loud straight Pipe Exhaust sound !! - YouTube[/ame]