Those are called rivets which are extremely durable and strong when installed correctly using a rivet gun, however, standard stainless bolts and nuts sourced from a local hardware store will work just as well.
seriously this is what my car needed(2009 JCW Coupe), my old blow off valve was starting to go bad... so i picked up this guy, this paired with a CAI will make sure everyone knows your running a turbo.
Brennen Brittain
(Lake Elsinore Chrysler Dodge Jeep Ram)
Im in Australia, so receiving my products within two weeks was great. Just arrived today and im so stoked to be doing up my Mini Cooper S with some very cool accessories. A huge thanks to the team at Outmotoring.com for their continuing support and answering all my stupid questions, of which i asked many, even before i had placed an order. Rare levels of customer service. Materials used in products appear to be of high quality so i will update when i have finished installing them. Once again, thankyou
Scotty
Just purchased the Black "slat" Grill to replace the standard chrome slat grill on my R56, I installed it with the original chrome trim pieces, looks fantastic for $100. Not knowing what I was doing at first and it still only took 10 mins. to install.