[timgco]

I have had cat back exhausts, K&n Intake systems, and Hypertech programmers on my last three trucks, one of wich I got lemmon law on. I have never had one issue with any of my dealers for warratny do to aftermarket parts. It really depends on how well you know your dealer and what terms you are on with them. Just tell the dealer exactly what you want to do and ask them about it effecting your warranty. Small changes like what I have done you will notice a difference doing all three, but if your looking for a huge difference in power, don't get your hopes up really high. I'm in the process of adding all three above items to my H2. The stealership said no problems with Warranty. Why? because they put the eaxact set-up on an H2 on the showroom floor. Volant air intake, Corsa exhaust with headers, and Hypertech programmer and 37" tires. So in my case my dealer in CO is OK. just ask your dealer. Talk with the service manager only!