[samdemange]

i have done this for mine
6 in 2 supersprint copy ( 2x 2" )


midlle decata for 325i or 328i racing inox (2x2")
(must modify the fixations)


2 flex pipes 2"
y pipe 2x2" to 1x2.5"



2 45° elbows and 30 cm pipe in 2.5"



an universal muffler with 2.5" inlet