Non original replacememt drivers will make your speaker "different". Nobody can tell until they are repaired.
The best solution is to get them refoamed professionaly. Do not do it on your own even though it looks simple. Firstly, the cone has to be centered and the glue they use is much different as it is water based. More flexible than the glue available available in stores. This will ensure you that the speaker will still sound the same as before...not 100% but close...better than changing drivers.
Just my 2 cents.
The best solution is to get them refoamed professionaly. Do not do it on your own even though it looks simple. Firstly, the cone has to be centered and the glue they use is much different as it is water based. More flexible than the glue available available in stores. This will ensure you that the speaker will still sound the same as before...not 100% but close...better than changing drivers.
Just my 2 cents.