I have a '03 TT. what performance modifications could I make without giving up my warranty. I have both original warranty and after that is over extended factory certified warranty.

 

Basically it comes down to whatever you change you void the warranty on that particular part or if the changes you make effect another stock part. So if you change the turbos and then you blow the motor they will not warranty the motor. However if you change the exhaust or chip the ECU and your windows stop working they have to fix the windows since those changes have nothing to do with your windows.

 

We have people that still have no issue with the dealer with a set of K24s and programming. The nice thing is the switcher allows the car to go in stock mode so the dealer can enquire into the ECU about maps and will come back with zip, nadda. So this is one more thing to help.

Exhaust do not void warranties nor do air cleaners. These kits have been proven to be iron clad so you can expect problem free ownership.