Actually looking at the whole exhaust and the size of the outlet it prob isn't horrendously loud. IF that is a perforated pipe passthrough with little packing it may be a better pipe than it first looks and not too heavy. It would use the chamber as a wave breaker so kinda defeat the pulse performance boost but because it is a 2 into 1 header it might get around the 90deg out of phase pulse problem. Wouldn't bet on any of that though. Still looks too short for proper tuned length though.