Date Added: Monday 14 June, 2010
I had one of these for about 80k miles on my previous (NB) MX-5; thoroughly recommend it although I've had to replace the mounting bracket three times (hence, only four stars). (I believe the vibrating of the (quite large) filter work hardens the mild steel bracket until it becomes brittle and snaps at one of the mounting holes.)
Each time, K&N promptly sent me another one free of charge, but the design is obviously flawed and has resulted in the cone itself becoming slightly damaged. Maybe a couple of oversized steel washers fitted either side would help strengthen the bracket?
Rating: [4 of 5 Stars!]