Cold Air Intake
#16
#17
That's an engine with aftermarket headers and muffler bypasses installed. Those meager gains may only be possible because of those mods. Or the dyno charts could be BS, as they often are (viz: Fabspeed, which posts charts showing gains that nobody can ever seem to replicate)
#18
Agree with Jnosol that the 991 air intake configuration works very well stock and that the best upgrade is to drop in BMC or K&N air filters that are less restrictive. In fact Fabspeed, used to offer a CF cold air intake that replaces the standard stock airbox and filters on the 991 but stopped making and selling as there was negligible gains for the money.
#19
Agree with Jnosol that the 991 air intake configuration works very well stock and that the best upgrade is to drop in BMC or K&N air filters that are less restrictive. In fact Fabspeed, used to offer a CF cold air intake that replaces the standard stock airbox and filters on the 991 but stopped making and selling as there was negligible gains for the money.
#21
I guess wanting to bump this thread to see if anyone ever installed one of these? AFE now has an $850 all plastic version which is fine by me.
I was digging through parts and noticed 991 3.4/3.8/4.0 Carrera, S, GTS, GT3, GT3RS all use the same exact airbox with exception of GT3 Touring because Porsche needed a little more power out of it because of lack of ram air from the regular wing. The Touring uses dual cones very much like this intake. Dundon Motorsport also sells a dual cone intake somewhat similar to this for like $6000...
I’m tempted to get it and do before and after dyno on my car. $850 usually doesn’t buy much for these cars.
https://afepower.com/afe-power-54-83...ystem#overview
https://www.dundonmotorsports.com/pr...-center-plenum
I was digging through parts and noticed 991 3.4/3.8/4.0 Carrera, S, GTS, GT3, GT3RS all use the same exact airbox with exception of GT3 Touring because Porsche needed a little more power out of it because of lack of ram air from the regular wing. The Touring uses dual cones very much like this intake. Dundon Motorsport also sells a dual cone intake somewhat similar to this for like $6000...
I’m tempted to get it and do before and after dyno on my car. $850 usually doesn’t buy much for these cars.
https://afepower.com/afe-power-54-83...ystem#overview
https://www.dundonmotorsports.com/pr...-center-plenum
Last edited by AdamSanta85; 11-03-2020 at 10:02 PM.
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Porsche_nuts (11-03-2020)
#22
I guess wanting to bump this thread to see if anyone ever installed one of these? AFE now has an $850 all plastic version which is fine by me.
I was digging through parts and noticed 991 3.4/3.8/4.0 Carrera, S, GTS, GT3, GT3RS all use the same exact airbox with exception of GT3 Touring because Porsche needed a little more power out of it because of lack of ram air from the regular wing. The Touring uses dual cones very much like this intake. Dundon Motorsport also sells a dual cone intake somewhat similar to this for like $6000...
I’m tempted to get it and do before and after dyno on my car. $850 usually doesn’t buy much for these cars.
https://afepower.com/afe-power-54-83...ystem#overview
https://www.dundonmotorsports.com/pr...-center-plenum
I was digging through parts and noticed 991 3.4/3.8/4.0 Carrera, S, GTS, GT3, GT3RS all use the same exact airbox with exception of GT3 Touring because Porsche needed a little more power out of it because of lack of ram air from the regular wing. The Touring uses dual cones very much like this intake. Dundon Motorsport also sells a dual cone intake somewhat similar to this for like $6000...
I’m tempted to get it and do before and after dyno on my car. $850 usually doesn’t buy much for these cars.
https://afepower.com/afe-power-54-83...ystem#overview
https://www.dundonmotorsports.com/pr...-center-plenum
#23
The dyno chart they post looks legit... yes the car had headers for both runs which I don’t.
I’ve had a couple AFE intakes on cars in the past and I was happy with them. Nice quality. This is a little less exotic than I would like for a Porsche but at same time you couldn’t see it if you tried.
This is the Dundon manufactured intake
https://www.dundonmotorsports.com/pr...-center-plenum
Last edited by AdamSanta85; 11-03-2020 at 10:31 PM.
#24
Totally agreed. I meant it more to highlight that the dual cone intake thing has potential as both Porsche and they looked to that design to increase power on cars that came with our airbox. For $850 this thing might actually be good for a few horsepower. Might sound cool too.
The dyno chart they post looks legit... yes the car had headers for both runs which I don’t.
The dyno chart they post looks legit... yes the car had headers for both runs which I don’t.
#26
Yeah right. A bunch of aftermarket shysters can extract 15 plus horsepower more than Porsche engineers simply from an air intake.
Enjoy your IBD plenums, your ridiculous tunes, air filters and the like while pretending your car has 50 more horsepower than it really has.
But don't ever take it to a racetrack and pretend you can drive.
Enjoy your IBD plenums, your ridiculous tunes, air filters and the like while pretending your car has 50 more horsepower than it really has.
But don't ever take it to a racetrack and pretend you can drive.
Last edited by George from MD; 11-03-2020 at 10:53 PM.
#27
Yeah right. A bunch of aftermarket shysters can extract 15 plus horsepower more than Porsche engineers simply from an air intake.
Enjoy your IBD plenums, your ridiculous tunes, air filters and the like while pretending your car has 50 more horsepower than it really has.
But don't ever take it to a racetrack and pretend you can drive.
Enjoy your IBD plenums, your ridiculous tunes, air filters and the like while pretending your car has 50 more horsepower than it really has.
But don't ever take it to a racetrack and pretend you can drive.
My car has extra HP; confirmed by dyno, and it makes me happy
#28
Last edited by AdamSanta85; 11-04-2020 at 11:57 AM.
#29
See them advertising on the MB World forums for many years, mainly for their exhaust systems.
Users of their products seem very happy. IF the OEM intake (with a panel filter) is the limiting factor, adding more surface area could make a difference, versus improving the flow with the same surface area
Could a pair of cone intakes make a difference? I think so. FWIW, there is a 'new' intake that E63 owners are going ga-ga over replacing the flat panel filters with cone filters and picking up .5 sec in the 60-130 mph times consistently. https://mbworld.org/forums/w212-amg/...ck-intake.html
As for why OEM manufacturers often design intakes a particular way is to limit sound or control/tune how the intake sounds. Personally I like the intake noise, but I am a 16 yr old kid trapped in an adult body.
Users of their products seem very happy. IF the OEM intake (with a panel filter) is the limiting factor, adding more surface area could make a difference, versus improving the flow with the same surface area
Could a pair of cone intakes make a difference? I think so. FWIW, there is a 'new' intake that E63 owners are going ga-ga over replacing the flat panel filters with cone filters and picking up .5 sec in the 60-130 mph times consistently. https://mbworld.org/forums/w212-amg/...ck-intake.html
As for why OEM manufacturers often design intakes a particular way is to limit sound or control/tune how the intake sounds. Personally I like the intake noise, but I am a 16 yr old kid trapped in an adult body.
Last edited by thesaintusa; 11-04-2020 at 11:25 AM.
#30
Just called AFE for some more info. Looks like these will be on backorder until February. They have 10 kits being made (100% made in USA), 6 are sold. I might put it on backorder through my buddies performance shop as he is able to give me a great deal.
AFE said that they will be on black friday sale for $800 direct through them.
I read the install instructions and found this step interesting. It sounds like you cap off that sound tube that runs into the back of the car, at the point it used to attach to the OEM airbox.
https://afepower.com/media/catalog/p...83037r_ins.pdf
AFE said that they will be on black friday sale for $800 direct through them.
I read the install instructions and found this step interesting. It sounds like you cap off that sound tube that runs into the back of the car, at the point it used to attach to the OEM airbox.
https://afepower.com/media/catalog/p...83037r_ins.pdf
Step 17: Remove the two (x2) 9/16" nuts on the heat shield. Keep the heat shield in its location and save the nuts. Close off the sound chamber with the provided cap and clamp.
Last edited by AdamSanta85; 11-04-2020 at 11:33 AM.