Sound comparison exhaust video shot same day with a GoPro Hero Session across multiple runs using the same circuit.
Car: BMW E36 M3 1996 (Evo, Euro)
Engine: S50B32 3.2L (unmodified)
Exhausts:
#1 Standard European midpipe + rear sections
#2 Supersprint Race Mid-pipe (cross x-pipe with no-cats) with standard rear European back back box section