When I had my OEM turbos, this part did it's job. However, Dynamic Racing bored out my exhaust port on my turbo (hot-side; firewall side) and I still purchased this part. Do NOT make the same mistake i did, lol. If your turbo exhaust port is bored out, you do NOT need this OEM part. Once you start modifying OEM, some OEM part(s) will NOT work the way it is designed to function. Happy building!