of their stock exhaust manifold and down pipe vs a Pacesetter header setup?

I searched here and all the links where people had pics posted were broken or had the loveley little red X's.

I'd appreciate it.

All I have is Pacestter and HS comparisons, and primera primary with Pacesetter primary.

Dont know if those would help you.

I already saw those, but thanks. :)

One thing I couldn't tell by your PS/HS pics was the diameter difference of the downpipe and primaries. What is the difference? 2/8" maybe?

I am not certain of the diameter of the primaries, but the HS secondary is 2" and the Pacesetter is 2.25".

The later gen HS have the bigger primaries, but smaller secondary, while the Pacesetter has the smaller primaries and bigger secondary.