i read somewhere that they some GP guy had trouble getting it to work, I dont think anyone here has it. Try starting a post on the GP forum. If you find anything out make sure to report it back!

Those are all of the reccomended mods that should go with it. I bet the new rockers are helping the top end out, and without them I doubt that you would achive 9whp.

The thing is, I wrote the company selling them and told them what I had allready. He said look to gain 9whp, especially with the exhaust work done allready. Now, of course he could be fibin to try to sell his product, hey its advertising! I just wanted to know if it is realisiticly possible to gain any HP from this mod? I mean, why couldnt we just carefully mod our own intake this way, or is it built a different way type of thing?

It might help a little with heat transfer.

Longer intake pipes mean better high end, and worse low end.

I think you have it backwards there. Wouldnt the lack of runners make it easier for more air to flow at higher RPMs? Look at the dyno charts on that page. I think you wouldnt expect the 30WHP without those mods, but the 9 would be doable. It would be just at the rev limiter tho.

Im thinking that, and maybe a custom PCM, and port and polish some stuff. Alltogether that could be a nice little gain!

try clubgp.com, somebody over there has to have one.

You're correct. The formula for runner length involves the speed of the air and the speed of sound in that air, with speed of air in the denominator. Larger speed = Shorter length.

I used to think the opposite, then I had this topic in class in March.

Larger speed = shorter length? Um, have no idea how to comprehend that. :?