How much does this cost to the nearest dollar?

ATP Automotive Graywerks 101322 Exhaust Manifold/Catalytic Converter
Engineered as direct OE replacement ensuring manifold will line up and flow like the original unit High grade steel and precious metals resist fatigue and provide long lasting reliable catalyst performance Developed based on OEM ECU monitors eliminating catalytic converter check engine light and restoring correct emission levels Upper and lower flange gaskets along with lower flange hardware are included. (Heat shields and plugs are included where needed.) Limited 5 Year Warranty Manufacturer ATP, Brand ATP Automotive, Model Exhaust Manifold/Catalytic Converter, Weight 16.4 pounds, Dimensions 21.3 x 15.3 x 6.9 inches, Country of Origin USA, model number Exterior Machined, Manufacturer Part Available October 10, 2007

Price is $311.00
Price: $310.82