2" 51MM FLEX EXHAUST STAINLESS STEEL PER METRE ONLY SOLD IN 1M (ONE METRE) LENGTHS NO OPTIONS STAINLESS SUPERFLEX EXTRA H/D I.D. = INSIDE DIAMETRE I.D. SIZE MM/INCHES = PART NUMBER 38MM / 1"1⁄2 GSF38 SSF038 51MM / 2” SSF51 57MM / 2"1⁄4 SSF057 63MM / 2"1⁄2 SSF063 76MM / 3” SSF076 89MM / 3"1⁄2” SSF89 102MM / 4” SSF102 114MM / 4"1⁄2 SSF114 127MM / 5” SSF127 152MM / 6” SSF152 YOU MAY ALSO NEED STEPPED SEAL EXHAUST CLAMPS 2" = X007780 3" = X007782 4" = X007784 5" = X007785