I recently purchased a set of 4 cyl headers and a muffler from triad west performance. Dave is an extremely nice and helpful guy. I have been extremely impressed with his kindness and professionalism.
The headers and exhaust are very well made. The welds and fitment are very precise.
I still have some things to put on my engine before I can start it so I will post an update on sound and power once the engine is running.