thanks for the replies.

sorry, should have mentioned, it's definitely not the engine hesitating nor misfiring. engine idles and runs fine.

plugs and wires are all under 5k miles, UIM and TB cleaned 3k ago.

any other ideas? could the clutch disk springs do this?
any other way to check the engine mounts?

thanks

for sale: E0 (98) Silver Frost SVT/Contour http://contour.org/carprofile/carprofile.cgi?a=display&uid=667 wanted: front SVT bumper mesh, 01/02 S4 avant, nogaro blue.