Update: Part# is 4789 and fits 1996-01 Type R Integra (B18C5) , 1999-00 Civic SiR or Edelbrock Victor/Performer X manifolds.
Bought this brand new from Garage Five. I barely used it and it's still in like new condition.
$175obo. (Sells for close to $500 new)
http://www.edelbrock.com/sportcompac.../tb_perf.shtml
PERFORMER X THROTTLE BODIES
HONDA/ACURA 65mm THROTTLE BODIES
Designed by Edelbrock, these direct bolt-on throttle bodies come complete with a new throttle position sensor and bore area that's 18% larger than stock for increased performance. Edelbrock street legal throttle bodies bolt directly to the stock manifold with mounts for stock sensors and vacuum lines. They are the best choice for accurately controlling airflow into the Edelbrock Performer X manifold but are also engineered to work perfectly on an OE intake. The large bore area is capable of enough airflow to supply full tilt alcohol and turbocharged drag engines making upwards of 800 HP.