That manifold has been out for a while now and I have yet to find anyone that has done back to back test against the stock pi intake. One guy that tested it upped the boost on his turbos at the same time so there is no way of telling what the increase was from the intake alone.
My only concern with it is that the intake runners are slightly shorter then the stock pi intake wich would most likely hurt low end power production. I however am not a expert and dont know how it was designed so it may even pick up a little power in the low end. If you are seriously looking into a new intake I would either go with a trick flow or the hps. I think that most can agree that the typhoon is a piece of junk and the P-51 is just flat out too expensive so that leaves you with those two choices from the aftermarket.
I remember they first tested a n/a PI car with VT stg 2 cams. It picked up low end torque, but lost power only around 5000 rpm for a small increment, but it wasn't drastic. They are good for nitrous cars, or high boost. The PI still has an advantage in weight and less heat soak.
I dont think the trick flow will work for my car, ive heard that it mounts the alternator backwards which wont work with centri superchargers.
I guess that leaves only the bullitt intake or the HPS. The bullitt is a great proven intake, but too bad its such a beat down to find all the little pieces needed to make it work.
That manifold has been out for a while now and I have yet to find anyone that has done back to back test against the stock pi intake. One guy that tested it upped the boost on his turbos at the same time so there is no way of telling what the increase was from the intake alone.
My only concern with it is that the intake runners are slightly shorter then the stock pi intake wich would most likely hurt low end power production. I however am not a expert and dont know how it was designed so it may even pick up a little power in the low end. If you are seriously looking into a new intake I would either go with a trick flow or the hps. I think that most can agree that the typhoon is a piece of junk and the P-51 is just flat out too expensive so that leaves you with those two choices from the aftermarket.