HKS Legamax Sports Cat Back ExhaustThe HKS Legamax is a high performance cat back exhaust sysstem offering both quietness and low back pressure. The pipe diameter is expanded to optimize a powered up FA24 engine compared to the previous 86 & BRZ. It provides excellent exhaust efficiency by employing a straight layout structure in the main pipes with a diameter of 65 mm or 2 x 50. 8 mm. A sporty sound comes from a characteristic layout HKS tuned the exhaust sound to suit the Active