BBR High Performance SkyActiv Valve Springs and Retainers
A bespoke set of valve springs and retainers specifically developed by BBR for the 2.0 SkyActiv engine including Mazda MX-5 ND / Mazda3 etc.
A must have for high rpm use and for camshafts with valve lift increases of over 0.45mm.
No machining is required for installation, the Mazda original valve seal and lower retainer is maintained. 30kg @ 38mm seat 80kg @ maximum valve lift of 13mm
Replacement retainers are no longer required due to custom manufactured conical springs which are now provided.