We continue the study of mixing properties of generic hyperbolic flows star
ted in an earlier paper (D. Dolgopyat. Prevalence of rapid mixing in hyperb
olic flows. Erg. Th.& Dyn. Sys. 18 (1998), 1097-1114). Our main result is t
hat generic suspension flow over subshifts of finite type is exponentially
mixing. This is a quantitative version of an earlier result of Parry and Po
llicott (W. Parry and M. Pollicott. Stability of mixing for toral extension
s of hyperbolic systems.