The double-chamber Resonator aluminum tuned pipe is precision-engineered on the dyno to increase average peak torque by 16% resulting in brutal bottom end punch. A 10% increase in total power across the whole range provides smooth power delivery, perfect for the back yard or the race track. The dual-chamber pipe provides an All Resonator pipes are fully polished to a beautiful mirror-chrome finish with a laser etched logo. Includes mounting hardware.