An adjustable fuel pressure regulator for that tried and true 4AGE we've all come to know and love.  These are brand new pieces -  and easily serviceable regulators that should last you a long time.
 
These will bolt right up to the factory fuel rail (stainless mounting hardware included.
 
*Fuel pressure gauge recommended.
 
*Price shown includes USPS Flat Rate Shipping to US Destinations. International customers please contact us for a proper shipping quote.