wouldnt doing this light bog down the amount of power going to the vtec
one LED won't hurt the vtec. but if you don't wire it correctly (wire is loose and tap into ground), yes, it would definitely mess up your vtec. but LED is meant for lower power light so i believe it won't affect the vtec. maybe by 0.1%. which is a lot for some racers because they want the full power for motor. haha