Does anyone know the difference between the '99 ITR Intake springs VS. the '98 ITR springs ? They have diff. part numbers, but only the last number is off.

eg. '98 ITR Inner intake valve springs 14751-p73-j01
'99 ITR Inner intake valve springs 14751-p73-j02

HELP !! I need to know the diff. cause I'm going to purchase some....


Thanks for all the help.