The perfect way to cap any 4in. external disc 6061 billet aluminum hand polished to a mirror finish Run open for the ultimate in top-end power and sound; run closed for improved low-end torque and quieter operation
The perfect way to cap any 4in. external disc 6061 billet aluminum hand polished to a mirror finish Run open for the ultimate in top-end power and sound; run closed for improved low-end torque and quieter operation
