hi lads, gathering a few bits for the s1 ready for the imminent rebuild. been looking for some Astra vxr injectors and a part number of what i need to try getting them through work. saw a set on egay with rail complete. just wondered are these right and correct 480 ish cc?

http://www.ebay.co.uk/itm/Vauxhall-Astra-VXR-Fuel-Rail-Injectors-Z20LEH-Z20LET-/300676001109

thanks in advance.