I did the same mod to my gauges and the temp gauge isn't as bright as the others because it has a T1.5 light bulb behind it lighting it up whereas the other gauges all have 168/194 size bulbs. The instructions on the ledautomotive.com website indicate that there are 4 168/194 bulbs on the back of the instrument cluster but mine only has 3 and 1 T1.5 bulb. I don't know if it's different because I have 98 I4 sedan or what. I used the wide angle leds for the gauges because of it's more even light pattern and narrow angle leds for the indicator lights such as blinkers, cruise control, CEL, etc.