Purchased these about 6 months ago as one of the OEM lines was leaking oil I think one of the fittings was corroded through, thanks Michigan winters). They were delivered within a day of ordering which was a relief as this is my daily driver. Installation like anything to do with the Rx8 engine is not so easy. I'm pretty sure I used Banzai's instructions to install and everything fit good and there were no leaks
6 months later still no leaks and happy with their customer service