Vibrationally state-selected measurements of the kinetics and dynamics of N-14(2)+ (upsilon=1 and 2) and N-15(2)+ (upsilon=0, 1, and 2) in collisions with N-14(2) are made using a selected ion flow tube (SIFT), laser induced fluorescence (LIF) technique at thermal energies. Kinetics are measured by monitoring the LIF signal amplitudes of N-2(+) (upsilon) as a function of N-14(2) concentration, added after ion injection. By comparison with the known N-2(+) (upsilon=1) + Ar rate, the N-15(2)+ (upsilon=0) + N-14(2) rate constant is found to be one-half of the Langevin collision rate, or 4.2+/-0.2x10(-10) cm(3) molecule(-1) s(-1). This suggests that the reaction proceeds via an N-4(+) energized adduct in which charge is shared on a time scale shorter than the adduct lifetime. The removal rates of N-14(2)+ (upsilon=1 and 2) with N-14(2) are 21%-26% faster than those for N-14(2)+ (upsilon) with N-14(2) in which both charge and vibrational energy are transferred between the collision partners. This pathway is also observed directly by the appearance of N-14(2)+ (upsilon=1 and 2) product states. For this channel to proceed, vibrational energy transfer between the two highest frequency modes of the N-4(+) energized adduct must occur on a time scale comparable to the adduct lifetime.