TTI header coating warranty

Here ya go.

http://www.ttiexhaust.com/Warranty/Warranty-MaintenanceCare.htm

I installed my headers well over 10 years ago, clean them w/Mothers Wheel Polish 2x a year and lay plastic under the car during the off season. There is some minor rust on the flanges and at the junction of the 4 tubes. Follow their instructions and the coating will last.