Haven't used their headers yet, hopefully someone else will respond that has them installed. If the quality of their headers is the same as their mufflers, they should be a good value.
I have only praise for their Terminator mufflers. I've used them on two trucks over the last 10 years with great results. They last indefinitely, can be installed in either direction, and are less expensive than Flowmasters. They have a nasty bark when the throttle is stomped. If a balance tube is used the bark drops a bit and they sound like an early Corvette.
