Brake caliber seal sets OEM or aftermarket?

[DTTW]

I've got a K5 with 50k as in km's. I've cleaned the front calibers once before but would like to make total refurb for both front and rear. Should I stick with OEM seal sets or is this, for example ok?
https://www.ebay.co.uk/itm/Suzuki-GSX-1400-front-brake-caliper-seal-rebuild-kit-K4-K5-K6-2004-2005-2006/152412328046?hash=item237c7b906e:g:FK8AAOSwUKxYiznQ

PS. Should the pistons move equally when pulling lever? Common sense says yes as unequal movement may cause vibration...

[Del]

Power house replacement seals are good quality so you will be fine using them - the pistons should all move together but remember when they are working on the bike there is very little movement between you pressing the lever and them reacting - so when youre cleaning them then you will see them moving at different speeds

hope this helps
Del

[DTTW]

Del, good point about the movement.

Will order power house set. Thanks for fast reply.

[GSXKING]

Don't know why you'd bother, mine is 18 yo done 139,000km's and I've never even looked at that part 

[DTTW]

Preventing maintenance they say... 

I've got some vibration coming thru when braking. Have to check the disc bobbins firts. The lever feeling is not too firm thought. So basically looking for more feeling for the lever, especially on the track the brakes don't give good feedback.

Maybe I'm worrying too much. I don't know.

[Del]

Don't know why you'd bother, mine is 18 yo done 139,000km's and I've never even looked at that part 

roads get a tad mankier over here fella 

[GSXKING]

"Feel" from a GSX front brake LOL. That's one thing they are not known for. Even with petal discs, sintered pads and braided lines (well bled up) it's still just adequate and that is part of the joys of owning one 

[DTTW]

Yes it is not a state of the art (other than the look's) bike. I've never got the change to ride a brand new one so I have no idea how the lever should feel. Anyway I think there is room for little bit of improvement when comparing 15 years old brake setup to a similar one but brand new.