I agree....for a mildly modded car, none are necessary. Oil Pressure is nice, but if youre not a retard or have the worst luck in the world...its not a big deal.

People still dont seem to understand why one gets an A/F guage...I swear Im going to correct this every single time I see it until people stop regurgitating the phrase "its just a light show."

An AF guage on a stock sensor is a safety tool, not a tuning tool. You dont need a wideband to effectively use an AF guage. If you spring a fuel leak, or for some reason your ECU decides to not deliver fuel or whatever the case may be, you'll find out real fast. How else would you do this? A fuel pressure guage. Now compare the costs of an FP guage vs an AF guage, and tell me again its a waste of money.

AF Guage = cheap, effective tool to make sure a/f is a safe condition.