The ornamental design for an exhaustpipetip, as shown and described.
FIG. 1 is a top perspective view of an exhaust pipe tip showing the new design;
FIG. 2 is a front elevation of the exhaust pipe tip of FIG. 1;
FIG. 3 is a right side elevation of the exhaust pipe tip of FIG. 1, wherein a left side elevation view is a mirror image of FIG. 2;
FIG. 4 is a top plan view of the exhaust pipe tip of FIG. 1; and,
FIG. 5 is a bottom plan view of the exhaust pipe tip of FIG. 1.
A rear elevation of the exhaust pipe tip constitutes no part of the claimed design. In the drawings, the broken lines depict unclaimed subject matter only and form no part of the claimed design.