Originally Posted by Electric Lizard

What I cannot understand regarding this is: If the substantial performance enhancements are so easily available, why didn't Porsche simply change the shape of the stock plenum? Is the RSS R&D staff really that much smarter than Porsche's? Do they have significantly more resources to pour into improving the performance of a product they don't sell tens of thousands of? When the entire Porsche mystique is wrapped around performance (e.g. I would be considerably less skeptical if RSS was offering a better cup holder)?

I will grant that it is possible that a bolt-on product could offer the kinds of gains RSS claims, but one of my personal mantras to live by is: "Fantastic claims require fantastic evidence".

Originally Posted by Tippy

The biggest gains were below peak, so it is not a 330 hp engine, rather a 307 peak hp motor with a nice hp boost in the midrange.

Originally Posted by ZX9RCAM

ArneeA.....is this possibly what you were trying to link to??

Originally Posted by Melchior

Why not make this plenum out of plastic like the OEM one. It can be made cheaper, provide the same results (+/- 1-2 hp) and could be sold like hot cakes. Bring the cost down to a reasonable $200 and everyone would buy one. I just don't see the need to make one out of metal unless you are using it in conjuction with a supercharger or expect to be in the .1% group that gets an engine fire and at that point, who cares? Someone on this list must know how to make injection plastic parts!