EVE-GXXB58-CF-INTBMW G01 X3 M40i
BMW G02 X4 M40i
Model Years : 2018 to 2024
Engine Displacement : 3.0 L

Installation GuideInstallation Time : 1-2 hours
Tools Required:••••

6mm, 7mm sockets and ratchet
Flat head Screwdriver or Pick
T25, T20 Torx Bits
3mm Hex Bit

Note: This guide has been made using a UK specification G20
B58. The installation process is the same as the X3/X4 M40i.
All directions referring to left and right are based on looking atthe engine from in front of the car.
Please take care when removing parts and fasteners. Contact
your Eventuri dealer or email info@eventuri.net for any furtherinformation.

Installation Instructions : GXX B58 Intake System: Page 1

1.

We will start by removing the stock airbox. Loosen and remove the rubber inlet
tube and disconnect the temperature sensor plug.

2. The airbox can now be pulled out. Make sure the rubber mounting bushes are still on thecar – if not, remove from the airbox and install back onto the chassis.

3. To remove the rubber intake tube – firstly pull out the spring clip around the tube at theturbo inlet end. The next photo shows a close up.

4. Pull the spring clip away from the tube flange and this will allow you to pull the tube awayfrom the turbo. There is also a breather connector to remove – see next step.

Installation Instructions : GXX B58 Intake System: Page 2

5. Remove the breather connector from the tube.

6. Remove the inlet tube completely from the engine.

7. Remove the temperature sensor from the airbox.

8. Take the machined flanges and the silicon reducer – we will now prepare these for
installation onto the turbo inlet. There are 2 flanges in the kit – please choose the correct
one depending on your vehicle. If you have an LCI please use the flange marked B58 LCI.

Installation Instructions : GXX B58 Intake System: Page 2b

TURBO SIDE

9.

Remove the rubber O-ring from inside the OEM tube and also the spring clip.
Depending on if your car is an pre-LCI or LCI, your O-ring will be either orange orgrey.

11. Install the spring clip as shown.

INTAKE SIDE

10. Insert the O-ring into the new flange as shown. The flat face of the O-ring should face theturbo side if you have this orange seal. The grey seal for the LCI is not sided.

12. Now push the silicon onto the flange with the 2 hose clamps and only tighten the clamp
around the flange.

Installation Instructions : GXX B58 Intake System: Page 3

13. Install the flange assembly onto the turbo inlet – it will click into place.

14. Take the inlet tube, filter, sealing plate and the M5 screws with lock washers.
.

.

15. Push the sealing plate onto the tube – ensure the INSIDE label is facing the filter side. Nowpush the filter fully onto the tube and secure with the attached clamp.

16. Insert the filter into the airbox and line up the holes on the sealing plate. Secure with thesupplied M5 screws and lock washers.

.

.

Installation Instructions : GXX B58 Intake System: Page 4

17. Another view of the sealing plate secured to the airbox.

18. Install the temperature sensor onto the tube using the supplied screws. DO NOT use thestock screws.

.

19. Carefully lower the airbox into the engine bay. The mount circled blue should sit in therubber mount shown in next photo.

20. Rubber Mount.

.

Installation Instructions : GXX B58 Intake System: Page 5

21. The main opening of the airbox should sit inside the stock duct – next photo.

22. Ensure the opening sits squarely on the stock duct.

.

23. Lower the airbox with the tube angled downwards and ensure the mount and secondary
scoop go into place as described previously.

24. Bring it down at a slight angle with the front duct to locate the mounts and thesecondary scoop as above.

Installation Instructions : GXX B58 Intake System: Page 6

25. Locate it into the 2 mounts and press firmly into place.
.

26. Rotate the tube into the silicon and connect the breather plug.
.

27. Secure the remaining hose clamp around the carbon tube – DO NOT overtighten.

28. Connect the temperature sensor plug.

.

.

Installation Instructions : GXX B58 Intake System: Page 7

CARB E.O.

28. Affix CARB EO in a visible location under the hood for a smog technician toeasily view.
.

You have now completed the installation of the Eventuri GXX B58 System.
Eventuri cannot take responsibility for an incorrectly installed intake or any damage caused during
installation.

Installation Instructions : GXX B58 Intake System: Page 8

EVE-GXXB58-CF-INT BILL OF MATERIALSCFMatteItem

QTY

X3M40 Airbox with mount bosses, G20 heatshield with 2x6mm spacers and gold reflective, G20 gasket and Efoam strip

1G20 Full tube plate with DX77 rubber

1

EV78 G20B58 Temp Tube with A90 Maf Boss1

A90 Filter (EVE-15144-G2-FTR)

1

M5 Nord Lock Washers

4

M5x16 Flanged Screws

4

M4 Maf Screws

2

B58 Turbo Flange + B58 LCI Turbo Flange

2

B58 Flange Hose

1

80-100 Hose Clamp

160-80 Hose Clamp

1Check31