Guys , just wondering if anyone has any experience with the fitment of the 1320 Performance Billet Brake Master Cylinder Brace for 2015-17 WRX.

Was planning to buy the Perrin unit then I saw the 1320 option for less and after all it is just firming up the master cylinder to improve brake pedal feel so why not save some dosh? I believe the Cuscu version leads to issue with AOS just wondering where the 1320 sits in relation.
Comments/feedback?