Wow and Flutter is an EP by the post-rock band Stereolab, which served as the second single from their 1994 album Mars Audiac Quintet. A limited edition of 3000 7" copies was released with hand-painted covers. The EP was also released on CD and 10" vinyl. Two of the tracks are alternative versions of songs on Mars Audiac Quintet. "Wow and Flutter" itself is a re-recording, while "Nihilist Assault Group, Pts.