This down pipe fits S400/S410 turbos with marmon style exhaust flanges. This down pipe reduces the 5" outlet to a 4" pipe for easy fabrication into your existing exhaust system. EGT bung incorporated into the design. TIG welded right here in our home state of Pennsylvania.
Universal fitment for vehicle application, but commonly used on semi-truck to route exhaust between the frame rail and engine block.
If you have fitment questions, please email us - Info@momentumworx.com
*Turbine housing not included.