1.15 A/R T6 Turbine Housing for S400- Fits 96/110 Turbine Wheel- Fits 171702, 171701 Box Units, along with some new T6 SX-E units- Offers better spool-up than common 1.32 A/R Found on box S475 T6 turbos- Perfect for the 'Over-Stock' Compound kits on Cummins and Duramax Builds for better low end and towing performance*Fits S475, S480 and S483 units with 96MM turbine wheel