S400 T4 1.0 83mm housing. this housing comes with the 4.62 inch standard S400 down pipe flange on the back.
177103 SX3 S400 Turbine Housing - 83mm. 1.00 A/R Twin Scroll T4
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.