finally got my custom TRI Y headers.....had clearance issues at first,it was 3 days (and nights) in the making
its not as pretty as aftermarket ones that you have there...still needs buffing
but i have used stainless steel with ss elbows, i dont have access to collectors so he just made fabricated
equal primaries 1.7inches stepped to 2inch 2-1 collectors, then mated to a 2.5 inch flexipipe (got it from the SSAC) and a 2.5 inch outlet going to a 3 inch pipe
had to modify the second runner as it is too low
initial driving impressions tri Y vs SSAC
low end torque increased again, lost some with the ssac
mid might be the same
at high rpms the G's can be felt on the tri Y compared to the SSAC