I looked at what the Subaru maintenance guide says about them, but it just had 'inspect' every so often (cant remember the interval, but was semi regularly)
i searched around, but there doesn't seem to be much on the replacement of these?
How often would they normally be replaced?
Im interested because some claim it helped to smoothen out there acceleration/ stop the annoying surge, that i sometimes get in 1st gear.
Cheers Guys!