WRX STI Stainless Unequal Length Headers.
WRX STI Stainless Unequal Length Headers. I believe these came off a 2011 2.5 WRX STI motor, but I'm not 100% sure, so you'd need to check yourself that they suit your needs, prior to purchase! Has 4 sensor taps at exhaust gas exit, plus a tap at the turbo exit. Built-in expansion joints.