trigeek37

I know they are about he same size - but anyone have any opinions or info that says one performs better then the other? also, if I swapped from the PFS to the Greddy, I would go back to my Apexi intake - is that as good as the PFS cold air box? I would prefer to use the Apexi cause the PFS is a pain in the *** to work with, but if it is better, so be it.

thanks

GoRacer

iTrader: (2)

Either use the complete kit or don't consider PFS SMIC. You would have to cap off the tube on the intake duct. The best thing about that kit is the "cold" air box, not warm air but forced "cold" air.

Why don't you compare Pettit's cold Charge II SMIC with the Greddy instead, that would make more sense.

trigeek37

cause I have access to a used GReddy SMIC from a friend in town... or I think I do anyway

so the comparison is:
GReddy SMIC + Apexi power intake vs.
PFS SMIC + PFS cold air box

I guess that would have been a better post topic...

my bad

jspecracer7

I'd have to agree with Ryan. If you have to choose between same products and non-matchng one's...get them all one product since they were designed to fit together...most of the time

GoRacer

iTrader: (2)

For the Greddy you would need to use your stock intake duct, if not you would need to order one from Pettit made for their cold charge II and trim it a bit. It will be useless without forcing could air "through" it with an air duct. An even better comparison would be using an M2 warm air box.

The PFS requires some effort to install, not drop in like Greddy or Pettit. There is some cutting, relocating, etc. You do have the drawback of sucking hot air in between shifts and on idle but it is the same exact thing as the stock design. Not sure if it fits with the new Efini Y-Pipe.

I have the Greddy but I would upgrade to M2 med or FMIC, if I was to change mine because the PFS is just as small as my Greddy.

trigeek37

I have the PFS SMIC & cold air box in my fd now. they are working fine except the cold air box is a pain in the *** in more ways then one. first, if I want to clean the filter, I need to remove the IC. also, the desgn of the box makes the piping from the box difficult to work with compared to the Apexi and I cannot use the alum pipes that I used with my Apexi unit.

what I really hate how the PFS SMIC relocates the ast. it is far to close to the belts for my taste, yet I don't see another place I could do a custom relocation without a great deal of fabrication on my own. overall the package is fine, though the initial installation was a huge pain. also, the PFS SMIC does work with the efini y-pipe w/o any problems.

trigeek37

I have the Apexi intake that I am not currently using that will fit with the GReddy SMIC. I would buy the IC and use my existing Apexi intake & sell the PFS set.

RX7 RAGE

iTrader: (22)

PFS all the way.....the pos greddy ic doesnt even come with a duct.

dis1

I'm an owner of the GReddy and I do think it's a great unit. Compared to the PFS intercooler I'd say the performance is very very close however if I had to pick one as better I'd say PFS by maybe 1 or 2%. The PFS one has a thinner core with more surface area and this is normally considered better because as the air moves through the core it heats up and thus doesn't do as much cooling towards the back of the intercooler. This said the GReddy does have a better fit and finish. It's a better design in regards to how the managed to fit it in to the tight stock space. This is largely done with an innovative bottom end tank. I'm not going to describe it but it's pretty cool. Lastly is the lack of a good duct with the GReddy. My God I don't see how they figured selling it with the POS duct it comes with was an OK idea. I made my own using sheet metal and the stock duct.

As far as the two intakes go I'd stick with the PFS one. Cold air is better even though the flow characteristics of the Apexi filters have been shown to be superior.

The GReddy is great but stick with your PFS stuff.

Tim Benton

iTrader: (1)

The greddy bottom tank is also a restriction as well. The crimped design makes the air sort of have to fight through there. I was happy with my PFS intake and IC until I bought the M2 med unit and sold mine to RX7 Rage. I don't have any flow data, but if the efini y pipe flows better than our stock y pipe, if you've seen the minor change with regards to that pipe, then I'd have to say the PFS would have a lower pressure drop from inlet to outlet compared to the Greddy due to the lower tank and the sqeeze going through it.

Tim

trigeek37

thanks guys, that is exactly the input I was looking for... I will stick with the pfs stuff I think... for now anyway

GoRacer

iTrader: (2)

Received my Pettit Cool Charge II SMIC air intake duct and will be using it for my Greddy SMIC. It is not a perfect fit and trimming is required. If I had a choice I would have just bought the Pettit because it comes with the duct. They Greddy is intended to be used with the stock duct but mine is broken to ****.

SanJoRX7

...and for those that care, the Greddy SMIC is CARB certified, so you *can* pass smog with it in CA.