MIUI 4.0.4 V5 FOR Xperia U ~185mb free ram so its amazing

Rom Features:

Android 4.0.4
Based on Cm9 kumquat
~185mb free ram so its amazing
Lite , Fast , smooth & multitasking
Long Life Battery
Build Prop Tweaked
Frameware Modded & Tweaked
Multi-Language 65 world language
Gapps Included
Miui Keyboard
Free Ram And Play Games (Tested )
Clear audio+ XLoud
Fully Themed to V5

Read Before We Start! To flash the ROM, you have to root and unlock your phone,

which is dangerous. Also, your warranty is now void. If your device 
got bricked without following the instruction, sorry I cannot help you
and I am not responsible for any damages. You will be just fine if you 
follow the instruction.

Bugs/ Not Working Hope None

Requirements
1. XU
2. Unlocked bootloader
3. CWM Recovery
4. Brain =)

How-To Install :

All Orange colors are recomended ! so please follow them
** IF U HAVE ISSUES SO U DIDNT FOLLOW MY INSTRUCTIONS **
1. Make Sure U are Rooted
2. Enter CWM
3. Enter mount and storage (Recommended)
4. Select format system , Format Data , Format Cach and press back button (Recommended)
5. Select full wipe (Recommended)
6. Select wipe cache (Recommended)
7. Enter advanced (Recommended)
8. Select wipe dalvik cache (Recommended)
9. Select wipe battery stat (Recommended)
10. Now search for the ROM and flash it.
11. Reboot your phone
12. Enjoy !!

Downloads: