Looked here?http://www.psituning.com/product.php/22800/cts_turbo_pcv_revamp_with_boost_tap___2_0_tfsi_golf_rorhttp://www.revotechnik.com/product-details/engine-hardware/20-tfsi-pcv-revamp#.U9vwebnwtdg
IMO go for whatever is cheaper as both do the same job.