velociabstract:
Thanks for posting the graph. The torque gains at the bottom end are impressive. I have a few questions, if you know the answers. Did you have a tune before the manifolds? It looks like a 3rd gear pull that was ended real early because the torque line never crosses the hp line. Also my car shifts into 4th. around 105 so it looks like you were shutting it down real early. If that's the case you have another 20 hp on top thats not being shown. I need to find my old dyno that was done in MPH to be positive. So you don't feel weak with the high numbers posted by others, my car was around 260 hp stock on a Mustang dyno. Any idea what the AFR's were?
No problem on posting the graph. Yes, I did have a tune prior to the manifolds. They were 3rd gear pulls but I never gave much thought to the early shut downs, since whats reflected provided me with the information I wanted. I've also been on three different dynos that gave higher numbers than this one. My perspective is the difference throughout the band, not the Max hp, so no worries about the perceived low hp number. My lonely 11.98 pass before the manifolds told me I had a little monster on my hands. I added the other graph with my AFR 
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waldig:
My dynos had started earlier and showed significant gains at the bottom, looks like just at 40 MPH for example that there is a terrific gain in grunt - torque. Breathing is everything, it is after all a heat motor and the more heat the more output power. Nice. Woody
Get back to installing that rear end Woody, just kidding 
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tom2112:
What brand of dyno is that?
How come they don't show the RPM?
Car was tuned on the Eurocharged shop dyno, Dynamics. Jerry could have changed how it was reading, not sure why the MPH over RPM 
but I have enough logs to see whats happening at the different RPM's.
Thirteendog:
I like these manifolds, they look so much better visually than the big manifolds. I know they don't flow as well as the big boys, but it's form over function for me
My thoughts exactly.
Buggin:
I've been eyeing the tweeked manifolds for the same reason. I'd like to keep it stock looking but get a little better airflow. The site says that the stock intake may or may not fit though...
I still have my stock and SL55 intakes, I could swap them out and tell you if they will fit, let me know.