The Equal Length Mid Pipe is specifically designed to create exhaust pipes of equal length. These pipes adjust for the difference in length between the front and rear downpipes of the F80 M3 and F82 M4. As a result, when combined with the H-pipe, a different exhaust note is produced—distinct from the typical "S55 sound," but described as more refined.
Benefits:
-Faster turbo spool.
-Increased power in the low and mid-range.
-Equal length design eliminates the pulsing sound caused by unequal-length downpipes.