NO, that stuff does not Void your Warranty. Your Warranty is MULTI, not a single thing it's multi. Warranty void depends on if the Mech considers the problem with your car is caused by the ADDED item being the Cause. Example: Your Engine is Not Voided because you changed your Stereo to a Aftermarket Stereo, Your Transmission is not Voided because you changed your Wheel Coils, etc, etc. Now if you Installed NOS, and did not get it Tuned properly and Blew your Engine, then probably Voided. CAI and Exhaust, is nothing to be Voided about.
07 GT. PREMIUM SCT: CUSTOM TUNE by "MUSTANG SPECIALTIES". FULL MAGNAFLOW COMPITION EXHAUST, LT. HEADERS AND X PIPE, LMR: GEN2 2010 STYLE HEADLIGHTS, RAXIOM: 2010 SMOKED COYOTE TAIL LIGHTS, WHEELS: STAGGERED WHL 22X8.5F-22X10R MORE LISTED INSIDE.