That's not true. They do indeed teach that works are necessary for salvation. It was drilled into me as a Catholic and it's part of the official Catholic doctrine via Council of Trent.
Just let a non-Catholic say *salvation by grace through faith in Christ without works so that no man can boast* and Catholics come along and start throwing James 2 around.
And then there's this....
http://history.hanover.edu/texts/trent/ct06.html
CANON XX.-If any one saith, that the man who is justified and how perfect soever, is not bound to observe the commandments of God and of the Church, but only to believe; as if indeed the Gospel were a bare and absolute promise of eternal life, without the condition of observing the commandments ; let him be anathema.
CANON XXIV.-If any one saith, that the justice received is not preserved and also increased before God through good works; but that the said works are merely the fruits and signs of Justification obtained, but not a cause of the increase thereof; let him be anathema.
CANON XXXII.-If any one saith, that the good works of one that is justified are in such manner the gifts of God, as that they are not also the good merits of him that is justified; or, that the said justified, by the good works which he performs through the grace of God and the merit of Jesus Christ, whose [Page 49] living member he is, does not truly merit increase of grace, eternal life, and the attainment of that eternal life,-if so be, however, that he depart in grace,-and also an increase of glory; let him be anathema.
CANON XX.-If any one saith, that the man who is justified and how perfect soever, is not bound to observe the commandments of God and of the Church, but only to believe; as if indeed the Gospel were a bare and absolute promise of eternal life, without the condition of observing the commandments ; let him be anathema.Troubles you?