Assume a car's exhaust system can be approximated as \(14 \mathrm{ft}\) of 0.125-ft-diameter cast-iron pipe with the equivalent of six \(90^{\circ}\) flanged elbows and a muffler.  The muffler acts as a resistor with a loss coefficient of \(K_{L}=8.5\). Determine the pressure at the beginning of the exhaust system if the flowrate is \(0.10 \mathrm{cfs}\), the temperature is \(250^{\circ} \mathrm{F}\), and the exhaust has the same properties as air.