Originally Posted by fuelforthesoul1999
Originally Posted by T-Keith
Didn't someone flow test the stock manifolds and find that the rear actually flowed worse then the front? Did we ever get confirmation on that?
I wouldn't be too worried about the pipe orientation, they are not meant to be headers and the price reflects that. Stock manifolds are usually set up this way.
yeah, this guy did, I can't remember his name, here'* the link
That'd be me. I just got finished SII PEMS flow tested and it turns out that the #'* were backwards. :(
New #'* are:
SII front cast iron:
Pre port/ceramic: 256 CFM
Post port/Ceramic: 288 CFM
SII Rear tubular:
Pre port/ceramic: 302 CFM
Post Port/Ceramic: 322 CFM
Now the interesting part is to get one of ZZP'* and have it flow tested on the same machine. HMMM.