I have both, I'd replace it with a 140mm fan rather than a 120mm.
I have used a Noctua P14r, Alphenfohn Wingboost 2 140mm and a Akasa Viper 140mm. Alpenfohn was the best, closely followed by the Akasa and then the noctua was only a smidge better than the stock fan. These are all fairly subjective results so take them with a pinch of salt.