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Installing a High Performance Air Intake - Porsche 911 Carrera
 
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Pelican Technical Article:

Installing a High Performance Air Intake - Porsche 911 Carrera

Time:

1 hour1 hr

Tab:

$600

Talent:

**

Tools:

T-20 Tamper-proof Torx driver (supplied with kit), flathead screwdriver, 13mm socket, 11mm socket, socket driver, short socket extension.

Applicable Models:

Porsche 996 Carrera models (1999-05)
Porsche 997 Carrera models (2005-08)

Parts Required:

EVO Motorsports 996/997 V-Flow Air Intake Kit

Hot Tip:

Verify kit is complete.

Performance Gain:

Greater air intake

Complementary Modification:

Clean your MAF sensor

Porsche engineered these cars to the fullest degree, but one of the most common areas Porsche owners can look to for improving their car's original performance (and customize the feel of their vehicle) is by installing an aftermarket air intake system.

Fortunately, there are plenty of companies offering high-performance air intake systems, so take your time, research each kit and investigate performance gains. For our 996, we decided to go with the 996/997 EVO V-Flow Air Intake Kit from Evolution Motorsports. The kit comes complete with all the required hardware for installation including the screws, MAF housing and air filter.

Installation of this airbox unit is pretty straightforward and will actually compliment the engine bay of your Porsche quite well.

Open the engine lid and begin by removing the airbox. Loosen and remove the 13mm bolt at the very back of the airbox (996 only), and the hose clamp holding the boot to the throttle body. You'll also have to unplug the connector to the MAF by squeezing the connector. Remove the MAF wiring from its harness and if you have a 3.8 you will need to remove the wire connector from the back of the airbox to the vacuum resonance valve. Now pull the boot off the throttle body and gently remove the airbox from the engine bay.

Next carefully removing the MAF sensor from the OEM airbox, and inserting this unit into the new V-Flow MAF housing, using the supplied T-20 Torx screws. If your MAF sensor is dirty, use a little compressed air to clean it out (do not touch the sensor with your bare hands!). Next, install the oil filler tube clip to the airbox housing with the supplied screw.

Attach the supplied L-bracket to the intake housing with the bolt provided in your kit. On the car, attach the supplied EVO rubber boot to the throttle body housing then, use a hose clamp to secure the boot. At this time, loosely fit a second hose clamp to the rubber boot.

Next, loosen the hose clamp on the new V-Flow air filter and fit the plastic step-down ring into the filter: do not be afraid to stretch the filter opening to accommodate the step-down ring. Retighten the hose clamp once the step-down ring is sitting flush inside with the air filter opening.

Now install the air filter unit into the airbox. Again, do not be afraid to wrestle and wiggle the air filter into the airbox opening: the plastic housing is pretty flexible and can be stretched out to fit the width of the air filter. Make sure the plastic step-down ring is extending out of the airbox cutout.

At this time, install the MAF housing to the plastic step-down ring: be sure the tube is fully inserted into the filter element. Now, take the rubber hose and fit it (push it down) around the opening edge of the air filter housing: the hose itself has a cutout for the tightest corner of the airbox.

Next, using the screws provided, affix the Evolution Motorsports flange plate to the airbox housing. Once your airbox is completely assembled, in one step, install the unit in the engine. Take your time with this step to fully seat the unit in the original airbox compartment, taking care to align the L-bracket with the airbox mounting hole. Attach the MAF tube to the rubber boot on the throttle body until it is fully inserted in the coupler. Again, take your time to achieve the perfect fit before you tighten the second hose clamp.

Take your OEM airbox mounting bolt and fit it through the L-bracket and chassis mounting hole, using a 13mm socket to tighten it until the entire unit sits firmly in place. Re-attach the MAF wiring harness to the sensor on the V-Flow MAF housing.

Finally, double-check all connections, fittings, and inspect there are no tools left in or around the engine bay. Next, start the car, inspect for leaks then take it for a drive. If all is well, enjoy your new high-performance air intake system!

Evolution Motorsports recommends the air filter be replaced every 10,000 miles or so (part number: FILVF997) and be oiled lightly as excessive oil can cause the MAF sensor to malfunction (which can trigger a "check engine" light and a wallet pains).

Open the engine decklid and remove the airbox.
Figure 1

Open the engine decklid and remove the airbox. Begin by loosening the hose clamp holding the boot to the throttle body (green arrow), then squeeze the tabs on the MAF connector to release it (yellow arrows). Now open the harness holder clip (purple arrow). Pull the oil filler tub up and out of it's clip on the airbox. (blue arrow) and finally unbolt the 13mm bolt holding the airbox inside the engine compartment (red arrow) and carefully lift the airbox out of the car.

Shown here is the EVO Motorsports 996/997 V-Flow Air Intake kit with the airbox, air filter, plastic step-down ring for the air filter, MAF housing, rubber airbox sealing hose, throttle body boot, hose clamps, T-20 tamper-proof Torx driver, oil filler clip, EVO logo plate, an L-bracket and supplied screws.
Figure 2

Shown here is the EVO Motorsports 996/997 V-Flow Air Intake kit with the airbox, air filter, plastic step-down ring for the air filter, MAF housing, rubber airbox sealing hose, throttle body boot, hose clamps, T-20 tamper-proof Torx driver, oil filler clip, EVO logo plate, an L-bracket and supplied screws.

Use a T-20 Torx driver and install the MAF sensor into the EVO MAF housing, utilizing the two supplied screws.
Figure 3

Use a T-20 Torx driver and install the MAF sensor into the EVO MAF housing, utilizing the two supplied screws. Be sure to handle the MAF sensor with care as any contact can potentially damage the sensor. If you would like, before installing the sensor, clean it with compressed air (do not touch the sensor with your fingertips or a towel).

Next, using a Phillips screwdriver, install the oil filler clip to the V-Flow intake unit with the screw provided.
Figure 4

Next, using a Phillips screwdriver, install the oil filler clip to the V-Flow intake unit with the screw provided. Attach the supplied L-bracket to the intake housing with the bolt provided in your kit using a socket wrench with an 11mm socket (insert upper left).

Next, fit the supplied EVO Motorsports rubber throttle body boot to the throttle body unit (insert).
Figure 5

Next, fit the supplied EVO Motorsports rubber throttle body boot to the throttle body unit (insert).Using a flathead screwdriver, fit and tighten a hose clamp to the throttle body boot (see green arrow). Fit and loosely tighten the second supplied hose clamp to the throttle body coupler with a flathead screwdriver.

Now, take your air filter, loosen the hose clamp with a flathead screwdriver and fit the plastic step-down ring into the air filter until it sits flush with the air filter opening.
Figure 6

Now, take your air filter, loosen the hose clamp with a flathead screwdriver and fit the plastic step-down ring into the air filter until it sits flush with the air filter opening. Once it's sitting pretty, tighten the hose clamp until the plastic ring sits firmly (yellow arrow).

Next, install the filter unit into the airbox opening.
Figure 7

Next, install the filter unit into the airbox opening. Do not be afraid to wrestle the air filter into the airbox, the plastic housing is flexible enough to give you a little wiggle room. I found it easy to first fit the smaller section of the filter in first, and then rotate the rest of the unit in while expanding the plastic airbox housing lip outward to make room for the step-down ring installed in the filter to fit through the airbox cutout.

Once you have the air filter installed in the airbox (make sure the plastic step-down ring is protruding from the airbox cutout), attach the MAF housing to the plastic filter ring as shown in thePicture.
Figure 8

Once you have the air filter installed in the airbox (make sure the plastic step-down ring is protruding from the airbox cutout), attach the MAF housing to the plastic filter ring as shown in thePicture.

Next, fit the rubber hose around the lip of the air filter opening (it just pushes in around the edge).
Figure 9

Next, fit the rubber hose around the lip of the air filter opening (it just pushes in around the edge). This hose has a cutout which I placed at the tightest corner of the opening, then worked my way around.

Once your V-Flow airbox is completely assembled, in one step, install the unit the same way you uninstalled the OEM airbox (slide the oil filler tube aside to give you room).
Figure 10

Once your V-Flow airbox is completely assembled, in one step, install the unit the same way you uninstalled the OEM airbox (slide the oil filler tube aside to give you room). Fit the MAF housing opening into the throttle body coupler and align the L-bracket with the airbox bolt hole on the chassis. Now, push the MAF tube into the throttle body boot and, using a flathead screwdriver, tighten the hose clamp. Be sure the MAF tube is completely seated in the coupler before tightening the hose clamp. Take your time with this step to get the best fit.

Taking your OEM airbox bolt, fit it through the L-bracket and chassis hole.
Figure 11

Taking your OEM airbox bolt, fit it through the L-bracket and chassis hole. Using a 13mm socket (use a short extension if necessary), tighten the bolt until the airbox unit sits evenly in place. Again, take your time to get the best fit.

Re-connect the MAF wiring harness to the sensor on the MAF housing.
Figure 12

Re-connect the MAF wiring harness to the sensor on the MAF housing.

Double check all connections, including MAF sensor, ensure all fitments and not loose.
Figure 13

Double check all connections, including MAF sensor, ensure all fitments and not loose. Check tightness of all three hose clamps, including those attached to the throttle body. Once all final checks have been made (and all tools have been removed from in and around the engine), start the car, check for leaks, then take it for a drive and enjoy your new high-performance air intake system.

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Comments and Suggestions:
Breakdust Comments: I believe the rubber grommet seals off the air filter when the engine bay cover is closed
March 5, 2016
  Followup from the Pelican Staff: That is the point of that seal, yes. Thanks for the input on this one. We appreciate the help.
- Nick at Pelican Parts
 
al Comments: What was your impressions on the results of this intake Pelican Parts ? Any thoughts
August 1, 2015
  Followup from the Pelican Staff: If installed correctly, with the duct running to the spoiler inlet, people have been pleased. - Nick at Pelican Parts  
booboy Comments: Interesting, I bought and returned a kit for my 997 because it was pointed out to me and rightfully so, that you are now pulling all of your air from the heated engine bay rather than the basically ram outside air from the tail on a 997.
March 25, 2015
  Followup from the Pelican Staff: The duct from the housing runs to the spoiler air intake. Are you sure you had the same one as shown here?
- Nick at Pelican Parts
 

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