Rob - No offence taken at all.
Xan - I use the circle method, seems to be pretty easy. Tig isnt hard to make a decent looking, strong weld. Its making them look pretty that takes experience.
scruff - Thanks for the compliment. I enjoy tig welding. If they were MIG I'd also be really impressed with myself. What kind of machine do you have? I bought a United CT518d off ebay. Its a 180amp arc, 160amp DC tig, 50amp plasma. Its the best thing ive ever bought, it will clean cut 1/2" plate no problem. I got mine for $900 CAN.
tmsoko - The header flange is mildsteel, the primaries + collectors are stainless. All straight pipes, v-bands, mufflers, cats, 3-bolt flanges, and flex pipes are stainless. The bends are aluminized mild steel. Ive been thinking about the jet hot for some time now. My buddy said I should just get them powered coated instead of sending them away to get the jet hot. How well do you think the powdercoating will hold up the heat?