Hi, dear i recently got CNG kit installed in corolla 05 (landi renzo, 60 cylinder tomasetto advancer emulator) in Rs 46500. And that too after a lot of bargaining and checking price at a number of shops. BTW i am not satisfied with this whole thing and planning to sell the kit. This is not because of any problem with the kit but the only reason is that i have drove the car for last five years on petrol and CNG has no match with petrol. You save few bucks but lose driving pleasure.