[tadams72]

I think it is a stretch to blame clutch problems on headers, possible tune, or a short throw shifter. Dealer has to be able to show a direct correlation between the aftermarket part and the damage. To average joe they may scare easily when the dealer tells them it's a no go because of those mods but persistance and being informed can make the difference.

To the original poster, read the Magnuson Moss Warranty Act thoroughly and have a copy when you go to the dealership. Try to find a local dealer that is used to working with people how mod. Again, based upon what I am seeing, they'd be hard pressed to deny a warranty claim . They may try to but stand fast and hold your ground. What I see in your sig is not going to cause clutch or transmission damage. Dealers install short throw shifter all the time as an RPO so that's not going to fly and your power adders even with a tune are not strecthing the capacity of the stock transmission. If you tuned it and had an engine failure that might be a diferent story. One last thing, contact Barton and tell them what you have going on and see if they have had any problems with warranty claims on people running their shifters.
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket partunless they can prove that the aftermarket part caused or contributed to the failure in the vehicle(per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) .