2007 Arctic Cat Four-Stroke Factory Service Manual, Page 157Get this manual
8Remove the springs securing the exhaust pipe to the exhaust manifold and the resonator to the chassis; then remove the cable tie and unplug the oxygen sensor and the oil pressure switch9Remove the bolts securing the exhaust manifold shield; then remove the shield AO269
! NOTE: On the turbo models, the exhaust manifoldturbocharger does not have to be removed
11Place an absorbent towel beneath the oil filter; then using Oil Filter Wrench (pn 0644-389), remove the oil filterAO279
! NOTE: On the turbo models to allow room for the heat shield to be removed, the water tank cap screws must be removed