bought for my corrado g60 but now realised i dont need it as my charger is fine its my head gasket thats gone!

, this is brand new in the box with belt and ive been told the smaller engine car it goes on the more bhp it will add like putting it on a polo g40 will add about 40bhp from the normal charger,
bought cheap as chips at £850 open to offers for quick sale as need the cash to have my head gasket done!
07816632293 txt or call me with offers but im putting it on all the forums so it wont hang about im expecting it be gone by sunday