I've read that having this done provides a pretty decent performance boost but admit I know next to nothing about the specifics.

Is this something the dealer can / will do and is it expensive?

Is it ok to do to a leased vechicle and does it effect the warranty ?

I'm not looking to make my FX4 into a racing vechicle. It's just that I've got this 5.4 engine in it and feel it should have a little more pedal response.

Thanks,
WaltinVt

 

There are several threads in the archive about this... Do a search - you are bound to find what you are looking for.

BTW - Welcome to the forum!