[CrazyMatt]

your car will explode, leaving two trails of still-burning flame and a liscence plate that is spinning on its end......

be careful! hehe.

 

[b16sir1991]

^^^LOL^^^ Nice one.

 

[magic2119]

nothin will happen, but you might not get all of the performance that you could. your ecu has to be reset, so it can "learn" the new values.

 

[FranticFocus05]

your car will explode, leaving two trails of still-burning flame and a liscence plate that is spinning on its end......

be careful! hehe.

[] Dont listen to him man if you dont disconnect your battery you will just have to check your blinker fluid. Not disconnecting your battery can cause the blinker fluid to build up and clog your blinkers along with making the fluid leak all over the front of yoru car.[xx(] some nasty shit!



HAHA no man if you dont nothin bad happens the ecu might just not pick up the new item and adjust the car to it. And if your doing electrical well you might end up with a few blown fuses...

 

[magic2119]

not the blinker fluid. that is a biotch to replace

 

[focusin]

Warning:

ACTUAL SERIOUS ANSWER![]

Not resetting the ECU will not harm it but as stated you might not get all the power your looking for, also a CEL is very possible.

 

[burninbright]

haha good one...

 

[illusionsoflife]

haha blinker fluid...sweet...