102 mm y pipe with built in diverter bungs

2.75” -3" treadstone fmic kit 600-1000 hp core piping kit

S.E.P Auto rs4 y pipe with extended intake

S.E.P Auto rs4 y pipe with integrated intake 85mm id

102 mm integrated y pipe

S.E.P Auto one piece inlets ko4 / rs6 turbo spec

S.E.P Auto 102 mm intake

Y pipe no intake 2.5” inlet

S.E.P Auto 6061 2.25 oversized Rs4 inlets

S.E.P R15-Series high performance core

2.25” upper inlet pipes kit for rs4 ko4 lower inlets

B5rs4 6061 billet (weld on) adapter flange

Bi pipe meth bung option

45 Degree Aluminum Bend

45 degree 2.5” silicon coupler