PSH
PCGB Member
Hi Oli
I haven't bought any valve springs from design 911 but I have bought plenty of other things and can't fault them, OEM items can be from the same factory or at least manufactured to the same standards. Why not ask them directly, I'm sure they will give an honest answer...iirc they did for me when inquiring about turbo exhaust valves, I wasn't sure if their's were up to the job as they were too cheap....they checked for me if they were sodium filled, they weren't which explained the price, probably ok for a standard car but very dangerous for mine, btw I asked the same question for a number of suppliers selling cheaper versions, none were sodium filled so be careful turbo owners. However I would expect their springs to be ok for a standard car in normal use, perhaps not a track day car though but as i said no harm in asking the question.
Pete
I haven't bought any valve springs from design 911 but I have bought plenty of other things and can't fault them, OEM items can be from the same factory or at least manufactured to the same standards. Why not ask them directly, I'm sure they will give an honest answer...iirc they did for me when inquiring about turbo exhaust valves, I wasn't sure if their's were up to the job as they were too cheap....they checked for me if they were sodium filled, they weren't which explained the price, probably ok for a standard car but very dangerous for mine, btw I asked the same question for a number of suppliers selling cheaper versions, none were sodium filled so be careful turbo owners. However I would expect their springs to be ok for a standard car in normal use, perhaps not a track day car though but as i said no harm in asking the question.
Pete