lcaad1249 posted the link to the review and dyno testing I refered to above. I quoted their dyno numbers from their test vehicle. Below his first link is a link to an intake shootout review of a number of different intakes from a number of different manufacturers. If you read the review and go over the dyno results, you will see the GDP isn't even the top performer, the CFM+ is. So, it's not like I'm bragging on the GDP because it just happens to be the intake I purchased. I purchased the GDP because I prefer aluminum construction over plastic (CFM+), GDP doesn't charge extra for the drilled and tapped ports and lastly because it is significantly less expensive than the rest.
There is a lengthly thread over at TDR about these intakes and how they make so much more power than the stocker (as a result of these dyno results). Like I said, I didn't believe it either. However, I also never had my stocker off and saw how restrictive it really is. How many of you actually looked inside their stock intake? You can BARELY get two fingers inside the intake where the two bolts go through it.
I did not delete the grid in the process. There is a review and dyno test of the grid heater delete also on that site. I did not feel the small gains from the delete outweigh the ease of cold starting during the cold winter months here in the northeast.
You can go and call "huge BS" all you like, that doesn't bother me. I wasn't a believer either, until I read the review, saw the dyno results AND looked inside my stock intake. I took a chance and bought one of the tested intakes. Ya know what? It works. It works damn good. Of course, it depends on how much fueling you have on your truck (as ALL mods do on these trucks), but these intakes DO deliver. It didn't turn my truck into a ride that went from not breaking the tires loose from a 50mph roll into one that instantly broke loose and broiled the tires for 100 yards like my 10 second turbo Buick does, but it DID make enough of a difference to make use of the highest power settings on my fueling stack to get the tires to haze enough and cause wheel hop from a 50mph roll and leave light patches on the road.
oke:
