I want to go with just the CBE...
non-res :: CF cans :: SS tips (will def look better on a white nismo)
I'm in it for the sound & the power gains.
but don't really see the need for an extra $500+ for minimal gains adding the HFC
The nismo is too quiet for me stock
check this older thread.... (from my CBE vs. CBE+HFC issue)
The great HFC question for newbies