Are Doug's headers worth it over my Summit headers?
Dougs or tti's are way worth it in my book. As is a coated header. Especially with all the other stuff you have done, painted headers lose paint FAST, and lets face it rusty stuff in a otherwise pristine engine bay look bad... The dougs and tti's dont hang low, or go around the center link, and in turn have a much smaller chance of being scraped, dinged, or crushed. I had several cheap headers on my dart with a LA motor, i eventually spent the cash on nice headers, and wont go back. Bought them again for my 5.7.
On another note, lots of header companies suggest not breaking in a camshaft on coated headers or they may "blue". So if you got cheapies, run them for the break in if its not a roller cam.
Joe