I'm looking for anyone who has knowledge or first hand experience on what (if anything) the following two upgrades would do to mustang's warranty.

1) Axel back exhaust.
2) Shorty headers. (Nothing in the engine compartment should be moved for these.)

Thanks in advance.

 

Modifications only effect the system they are involved with....your best bet is to talk to the dealer that will be servicing your car.

 

^if ur dealer agrees to fit these mods then u'll sure get their support. i dd that for my Abs.