HID and UD pulley
This post has been made alot before. I have the udp and have had no problems with it as of yet. Others have reported squealing from the new belt, however, this is usually solved by putting a new belt in. The udp is an excellent mod and you will feel a difference instantly, I highly reccomend it!
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I don't thinks it really matters, it doesn't do anything it happens in every car if you hit the gas the lights gets brighter at least it happens to me and to some of friends that have the UDP installed with HID and sound system.
HID = check
RRM UDP = check
Sound system = check
RRM make your car voltage at Idle lower that stock, and lower than it should be, but theres no major problems with that, maybe the sound system won't have the same POWER at idle (I havent notice any changes)
HID- No problem at all, HID even turn on with the DRL, and DRL its 1/2 Voltage.
If you dont have HIDs you will notice the lights dimmer at IDLE thats all.
actually my WideBand reads V. and my car goes to 11.x V. at Idle , which it's lower than it supposed.
RRM UDP = check
Sound system = check
RRM make your car voltage at Idle lower that stock, and lower than it should be, but theres no major problems with that, maybe the sound system won't have the same POWER at idle (I havent notice any changes)
HID- No problem at all, HID even turn on with the DRL, and DRL its 1/2 Voltage.
If you dont have HIDs you will notice the lights dimmer at IDLE thats all.
actually my WideBand reads V. and my car goes to 11.x V. at Idle , which it's lower than it supposed.




