exhaust leak help
 

hey guys i appreciate any help i can get so thanks in advance heres the problem i have an 03 silverado 4.3L and i went to meineke to put on a siimple glaspak and the shop tech told me i had an exhaust leak on the driver side at te manifold i was wondering if i could just loosen up the bolts and pull the manifold bout enough to get the gasket out and put a new one or would i have to cut it ?