HPI Blitz Steering rack question
 

I have an e-firestorm 10t flux and im doing a rebuild on it and im getting a nice savox steering servo and im wondering if the STRC and HPI steering racks for the blitz are the same for the firestorm, if not is the integy alloy one worth buying im not much of integy person but i just want something that doesnt have the stock plastic flex when under the stress of a good servo