lowbudget - really? I'm very surprised.
Well, you got the info straight from the horse's mouth, so there you go. He knows it's a completely different manifold, right?
Bill & Dan - I'll make a call and express your concerns. I'll get back with you soon.
Scott & others interested - It was DemonSVT that I talked with about 13cfm. It's pretty well agreed upon that 7.2% isn't much more rate for us dual honed folks. But, if you've got the flow to back it up, you should see 5-7 whp with this mod. If you've got a stock SE engine, don't expect to see a whole lot from this mod alone. Again, you've gotta have the flow to get the most from the mod.
That said, it's not bad bang for the buck. 7hp from a 600+ exhaust system isn't unheard of around these parts. If you're planning future mods (3L, turbo, more N/A power) this is probably a good idea.
