It shouldn't run hot. Do you know if they changed the map? (They shouldn't have). Might be worth checking the valve clearances. That braided hose comes from the blow-by box under the steering head, IIRC.
Also, (assuming the a factory map), pull your main fuses for a few minutes, or disconnect the battery, to reset the autolearning parameters.
The screws on the midpipe might just need a nip-up. You need to remove the heat shield to tighten them.