I have already converted the default db of 15 for 14. Download will be available soon after some prelim tests.
DOWNLOAD LINK FOR BETA TESTING IS COMING SOON
1.FIFA 15 database + eng local db [it does not contain the transfers from 30th august to 3rd sept but i have just updated the MAN UTD squad u know why, i will update the squads if any1 provide me the latest squads of 15 ]
2.FIFA 15 theme [ Intro video + theme (Created by::harshraman )]
3.All new crests, logo, kits, minikits, shoes, gkgloves [ all credits to the uploaders ].
4.FIFA 15 dlc files which will provide new updated style of career as a manager or as a player [ like player retirement will be more realistic, licensed league realistic schedule etc.]
Bugs:
1.New kit numbers are not supporting so u can see sm teams without kit numbers.
2.You can't start career with any team of Turkish league[if any1 want then he have to switch the league id by cm14].
3.Some of the players will have missing texture[one can manually import the faces to get rid of this prob].
Download LInk :: http://fifaxtreme.blogspot.in/2014/10/fifa-15-patch-for-fifa-14fifaxtreme-v-10.html
V.2
1.Fixed bug of players not having faces.
2.Turkish league is now playable in career mode.
3.New "WE ARE FIFA 15" adboards.
4.Missing flags and banner of new and old teams are added.
5.FIFA 15 new gameplay added.
6.New Game Hub like 15.
7.All new EA music tracks are playable now.
8.Kitnumbers bug error fixed.
Download Link:http://fifaxtreme.blogspot.in/2014/10/fifa-15-patch-for-fifa-14-v-20.html
V 2.5 is released...
v.2.5 Changes :
==============
1.Added FIFA 15 outro video.
2.Added new transfers as OFFICIAL FIFA 15 squad update.
3.Stadiums Bug fixed (No new stadiums added).
4.More accurate Backgrounds.
5.Fixed Turkish league 18 Teams slot.
6.Fixed Teams names errors(For all available languages in the game).
7.Added new mowings textures and 2 new goal nets.
Download From here :: http://fifaxtreme.blogspot.in/2014/10/fifa-15-patch-for-fifa-14-v-25.html
v.2.6 Changes :
==============
1.Player growth in career mode fixed.
2.Aston Villa and Southampton stadiums fixed.
Download From Here :: http://fifaxtreme.blogspot.in/2014/10/fifa-15-patch-for-fifa-14-v-26.html
FIFA 15 PATCH FOR FIFA 14 V 3.0 Released !!!
v.3.0 Changes :
==============
1.All faces are converted from fifa 15.
2.Eatrack problem fixed. All EA tracks are now playable.
3.Added new transfers as OFFCIAL FIFA 15 squad update (After Winter Transfer Window).
4.Added tool for database backup and online play.
5.New stadiums of FIFA 15 ( Without goalposts ).
Download From Here:: http://fifaxtreme.blogspot.in/2015/03/fifa-15-patch-for-fifa-14fifaxtreme-v-30.html
FIFA 15 TO FIFA 14 Career Mode CRASH Fix : https://www.mediafire.com/?f8wwr2ou1w0utr2
DOWNLOAD LINK FOR BETA TESTING IS COMING SOON

NEWS Update 1 :: Main Database is working fine
Local database is working too. 15 kits are supported in 14. All minikits are converted in fifa 14 format. Crests,logos,minifaces are working with 14.
Problems :: Only New Stadiums Don't Have Goalposts

Problems :: Only New Stadiums Don't Have Goalposts
V.11.FIFA 15 database + eng local db [it does not contain the transfers from 30th august to 3rd sept but i have just updated the MAN UTD squad u know why, i will update the squads if any1 provide me the latest squads of 15 ]
2.FIFA 15 theme [ Intro video + theme (Created by::harshraman )]
3.All new crests, logo, kits, minikits, shoes, gkgloves [ all credits to the uploaders ].
4.FIFA 15 dlc files which will provide new updated style of career as a manager or as a player [ like player retirement will be more realistic, licensed league realistic schedule etc.]
Bugs:
1.New kit numbers are not supporting so u can see sm teams without kit numbers.
2.You can't start career with any team of Turkish league[if any1 want then he have to switch the league id by cm14].
3.Some of the players will have missing texture[one can manually import the faces to get rid of this prob].
Download LInk :: http://fifaxtreme.blogspot.in/2014/10/fifa-15-patch-for-fifa-14fifaxtreme-v-10.html
V.2
1.Fixed bug of players not having faces.
2.Turkish league is now playable in career mode.
3.New "WE ARE FIFA 15" adboards.
4.Missing flags and banner of new and old teams are added.
5.FIFA 15 new gameplay added.
6.New Game Hub like 15.
7.All new EA music tracks are playable now.
8.Kitnumbers bug error fixed.
Download Link:http://fifaxtreme.blogspot.in/2014/10/fifa-15-patch-for-fifa-14-v-20.html
V 2.5 is released...
v.2.5 Changes :
==============
1.Added FIFA 15 outro video.
2.Added new transfers as OFFICIAL FIFA 15 squad update.
3.Stadiums Bug fixed (No new stadiums added).
4.More accurate Backgrounds.
5.Fixed Turkish league 18 Teams slot.
6.Fixed Teams names errors(For all available languages in the game).
7.Added new mowings textures and 2 new goal nets.
Download From here :: http://fifaxtreme.blogspot.in/2014/10/fifa-15-patch-for-fifa-14-v-25.html
v.2.6 Changes :
==============
1.Player growth in career mode fixed.
2.Aston Villa and Southampton stadiums fixed.
Download From Here :: http://fifaxtreme.blogspot.in/2014/10/fifa-15-patch-for-fifa-14-v-26.html
FIFA 15 PATCH FOR FIFA 14 V 3.0 Released !!!
v.3.0 Changes :
==============
1.All faces are converted from fifa 15.
2.Eatrack problem fixed. All EA tracks are now playable.
3.Added new transfers as OFFCIAL FIFA 15 squad update (After Winter Transfer Window).
4.Added tool for database backup and online play.
5.New stadiums of FIFA 15 ( Without goalposts ).
Download From Here:: http://fifaxtreme.blogspot.in/2015/03/fifa-15-patch-for-fifa-14fifaxtreme-v-30.html
FIFA 15 TO FIFA 14 Career Mode CRASH Fix : https://www.mediafire.com/?f8wwr2ou1w0utr2