Do you need to tune for the addition of the gt500 fuel system. Im running a little lean up top and my pump is maxed out now @ 478hp.
Thanks

 

I got two different answers when I did mine. I usually get my work done at Steeda and they said yes , but I don't know if it's required or just so you can get the most out of the system. I had it installed another place , because of a vast price difference , and they didn't redo the tune. A little later I had to get a new tune by Steeda anyway for another problem and of course they accounted for it then ...