Invidia Equal Length Headers (86/BRZ)Fitment Guide: 86 BRZ, 12 21 Product Details Unleash maximum engine performance with Invidia S304 Stainless Steel Equal (Tuned) Length Catless Headers. These headers dramatically reduce the restriction of the factory system. NOTE: Includes Check Engine Light (CEL) fix module to prevent the common Check Engine Light when using aftermarket headers with a factory tune (caused by an unexpected change in O2 sensor readings). BUY WITH CONFIDENCE Invidia