Product Upgrades Sierra-1 NrT KitCode:SR1NRTKIT1Price: $190.00 Quantity in Basket: none Sierra-1 to Sierra-2 KitCode:7SR2UPGPrice: $408.00 Quantity in Basket: none Sierra-1 to Sierra-2EX KitCode:7SR1T2EXPrice: $538.00 Quantity in Basket: none Sierra-2 to Sierra-2EX KitCode:7SR2T2EXPrice: $368.00 Quantity in Basket: none