Fuel Injection Pressure Regulator for 3000GT, Stealth, Diamante PR121. Product Notes – If the product notes states “with” or “without”, this means this will fit if your vehicle is equipped “with” or “without” that feature. For example, if it states “with fog lamps”, this means your vehicle must be equipped with fog lamps. This does not mean that fog lamps are included. HOW TO CHECK VEHICLE FITMENT.