New RPI exhaust installed yesterday. Can't get enough of the sight or sound! Significant bonus in weight savings. Stock exhaust = 23 lbs per side, total weight 46 lbs. New RPI exhaust = 8 lbs per side, total weight = 16 lbs. Total weight reduction = 30 lbs. This product is very well built using high quality stainless and the tips sparkle like jewels! Low pitch, no raspiness and the drone is a small price to pay for aural perfection. Before/after sound clips to follow...