That's the charged air/turbo outlet hose.
Part # is GM (13419572)
A new hose clamp would probably be better than a new hose unless yours is cracked and leaking 'boost.'
Clamp #: GM (52368505)
Part # is GM (13419572)
A new hose clamp would probably be better than a new hose unless yours is cracked and leaking 'boost.'
Clamp #: GM (52368505)
