Full Send Diesel -10 AN High Flow Drain Flange For S300 / S400 Turbos BD-1061830 the Mishimoto intercooler pipes are

the Mishimoto intercooler pipes are up to 55% less restrictive than stock

also allowing more efficient dissipation of heat over the factory's converter clutch

ground clearance

These T6 machined valve stem caps house an internal o-ring

Full Send Diesel -10 AN High Flow Drain Flange For S300 / S400 Turbos BD-1061830 the Mishimoto intercooler pipes areFull Send Diesel has specifically designed this 10AN high flow turbo drain flange fitting to address issues with oil backing up on S300 and S400 turbos. These high flow drain fittings are punched out as large as possible and feature a smooth contour on the inside to increase oil flow and reduce restriction.