How much does this cost to the nearest dollar?

aFe Power LARGE BORE Performance Exhaust System (for Titan XD)
Simple Installation This system uses factory mounting locations providing stability and hassle-free installation. OE Fit OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance This LARGE BORE HD exhaust system is constructed of 5 mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. 6 Diameter Black Intercooled Tip Finishing off the exhaust is a 6 diameter, black, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the

Price is $642.00
Price: $642.18