Scion tC downpipe for turbo use. Use with ATP Scion Turbo manifold with externally wastegated T3 flanged GT turbo with 3" V-Band (or if you have a T31 4 bolt housing with 2.5" openining, use adapter ATP-FLS-029 to convert it to 3" v-band and this downpipe will fit). High flowing 3" diameter mandrel bent stainless tubing. O2 bung for stock O2 sensor. Also has wastegate return port for recirculating exit of Tial 38mm wastegate used on the ATP Turbo manifold for the Scion Tc. TIG welded construction. Can be used on T3 turbos with 4 bolt 2.5" discharge using adapter ATP-FLS-029 on T3 turbo to convert to 3" V-Band. This downpipe should not be used on the T3 5-Bolt(Ford) style housing due to angle differences.