4.0 Stang

Ok my mods are listed below, and I am wondering what else I can do to my car. I am thinking about new gears and how much would these cost to get installed also would this void the warrenty.

nonstopred

jba headers

HurricaneStang

Upgrading alot of parts voids that part of the warranty. I'd say the gears and t-lok for performance wise which will void it i believe but only things relating to the switched out gears and lsd.

petepete

your parts only void the part of the warranty it effects and they have to prove your mods caused it. But basically all the dealers will try to rip you off

Puerto Rico 4.6

Either headers or the tloc gear combo. The tloc and gears will give more bang for your buck and they are pretty much even on the $ department. Like Pete Pete said ...they have to prove to you that your changes caused the problem. They tried to void my warranty because of the GT fog lights and i told them that their Supervisor had to call me and explin to me how the fog lights voided the warranty..needless to say they didnt call me back ....honored the warranty and had my car ready the next day. They always try to rip you off...you just have to be firm with them and they will normally find someone else to screw.