By contrast, 4-into-1 headers feature no such Y sections, instead merging its four runners into one short common collector.

The car now has custom fabricated ten-into-one headers, winding over the top like a 1960s Can-Am racer before leading to a "five-exit" exhaust that utilizes both the car's stock four-exit system ...

Driftworks' M5 V10-swapped E46 M3 was already the stuff of legend, and now it's wilder than ever before.