are the fd side seal springs in any way an upgrade? I'm just wondering because I'm getting new ones and saw they have a differant part number for the fd springs as well as a much more expensive price. I would like to beef up just about everything I can and if the side seals springs will help then I will get them. Any help would be great. Thanks.

 

yes, they are better. I believe that is common upgrade for FC motors

 

Don't know about side seals but I do know corner seal springs are an upgrade

 

yeah I have fd corner seal springs but not to sure about side seal springs. Did you mean corner seal springs dubulup?

 

ask mazdatrix. they would know

 

ok just got off the horn with some rotary shops in florida and they all said they are exactly the same however mazda does this from time to time where they will rebadge the same part for a differant year and make it more expensive to make some cash.

 

they may be a few mm longer but as for an upgrade? not at all.