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I run autometer fuel pressure, boost, and a glowshift wideband. Each gauge serves a purpose and has help me diagnose a problem in the past. A wideband is always good to have, by no means would i turn a car with it that should be saved for the dyno, but the wideband and FP is good to monitor the car if you ever have an injector start to drop out you will notice a different in FP and on the wideband, been there done that.