Universal Hydroformed Switchfire X-Pipe 3" ID 3" OD Outlets W/ Notches (60747)Description The Borla Universal Hydroformed SwitchFire X Pipe is a high performance exhaust component engineered for custom exhaust builders and enthusiasts looking for a revolutionary alternative to traditional X pipe designs. Unlike standard X pipes, which often feature a turbulent center intersection where exhaust gases collide, the patented SwitchFire design uses hydroformed internal passages to completely blend and merge the combustion pulses