Most recordings of the Bartók Quartet have good performances, and it is almost a question of choosing your favourite group. I have always liked the Hungarian Quartet, and their recording of the complete set is on DGG 457 740-2 (2 discs at mid price). The recording, although published in 1962, still sounds very fine indeed. Another splendid performance, in very good sound, is given by the Keller Quartet on Apex 254626862 (2 discs at super-budget price).
A highly recommendable recording of this work, coupled with the last Quartet, Op.135, was issued in 2013 by the Brentano Quartet of New York, at full price, on the Aeon label, AECD 1223. The Italian Quartet recorded all the Beethoven Quartets in the LP era to great acclaim, and their recording of the Op.131 and 132 works still sounds very fine on Decca 454 712-2 (2 discs at budget price).