Hi guys, i am just wondering if anyone knows where in ontario you can buy stainless steel tubing at a good price... looking to start doing some exhaust for people and i cant seem to find a price anywhere that will make me competitive...

CFF stainless quoted me $20/FT for 304 4" tube and $38/elbow unpolished .83 wall...
am hoping that i can do my exhausts in 304 but if anyone has a good source for 409 that is also a possibility.

im Trying to beat out a quote currently for a 4" exhaust on a chevy duramax. the price i need to beat is $750. I figure i will need 15' of pipe and 4 elbows

any advice would be great.