Pull ups/dips etc. reduce speed?

[Vitez]

Or just shadow box with 16oz gloves? =)

[cja07007]

I think dips make u punch harder, gives you more pop.

[IronBoxer]

I think dips make u punch harder, gives you more pop.

Dips, push ups, pull ups and particularly lower body exercises that target the posterior chain(hamstrings, lower back, glutes) can increase overall punching power. But the real source comes from proper technique.