GrenX 4.5” Rear Facing Teardrop Stainless Steel Snorkel System with Sealed Airbox Ineos Grenadier

SNORKEL IN STOCK READY TO SHIP

Airbox Due in 6 weeks

GrenX 4.5” Stainless Steel Snorkel for Ineos Grenadier

Can support B57 Diesel and B58 petrol Variants

Fully sealed airbox with Pod filter

Scratch resistant coating

4.5” teardrop style

Sports induction Sound

High flow performance airbox 

Australian made

Estimated installation time 6 hours

Shipping worldwide (email us with your shipping address for quotes)

Optional washable Uni Filter washable sock for dusty conditions coming soon

Enhance your Grenadier with our premium stainless steel snorkel kit, expertly crafted in Australia. Designed from top-grade stainless steel, this snorkel is built to handle the harshest conditions, providing rust-free durability for your off-road journeys.

Key Features:

• Australian-Made Excellence: Constructed with high-quality stainless steel, offering outstanding resistance to rust and corrosion.
• Professional Installation Recommended: Installation requires cutting of the guard; we recommend a professional installation for the best fit and finish.
• Complete Installation Kit: Includes all necessary components for installation—no extra parts required unless specified—making the process as smooth as possible.

Trade discounts available for bulk orders

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Water Crossing, Air Filtration, Inspection & Maintenance Guide

IMPORTANT NOTICE

The GrenX Snorkel and Airbox System is designed to reduce the risk of water, dust and debris 
entering the engine intake system. It is not a submarine kit, does not make the vehicle waterproof 
and does not eliminate the need for proper driver judgement, vehicle maintenance, safe recovery 
planning or compliance with vehicle manufacturer instructions.

Purpose
The GrenX Snorkel and Airbox System improves intake protection while maintaining high airflow and 
serviceability for touring, off-road and expedition use. The integrated drain valve assists 
drainage of incidental water entering the airbox during normal operation.

Why the GrenX Airbox Includes a Drain Valve & Viewing Window
Unlike many snorkel systems that rely solely on sealing, the GrenX Airbox includes a drain valve 
and visual inspection window. The drain valve allows incidental water drainage while the viewing 
window provides rapid inspection after water exposure.

River Crossings & Deep Water
Before entering water crossings, close the airbox drain valve and activate the manufacturer's 
wading mode where equipped. After the crossing, re-open the drain valve and inspect the airbox 
through the viewing window. The drain valve is intended as an emergency safeguard, not permission 
to exceed vehicle limits.

Water Crossing Preparation
Assess crossing depth, flow, entry and exit points, recovery options and hazards. Ensure diff, 
transmission and transfer case breathers are functioning correctly. GrenX recommends extended 
breathers. Avoid entering deep water immediately after heavy towing, highway driving or hard use; 
allowing components to cool may reduce thermal shock and seal-
related water ingress risks.

Vehicle Recovery Considerations
If the vehicle becomes immobilised in water, do not restart the engine until the intake system has 
been inspected. Owners should note that a Grenadier may require access to the transmission neutral 
disengagement mechanism located underneath the vehicle. This may be inaccessible in flooded 
conditions, making recovery planning essential before entering water.

Water Crossing Technique
Enter slowly and maintain steady throttle. Avoid sudden acceleration, harsh braking, rapid steering 
inputs and unnecessary gear changes. Follow the safest route and maintain a controlled, consistent 
speed appropriate for conditions.

Vehicle Modifications & Water Crossings
Larger tyres and suspension modifications may increase practical ground clearance but do not 
eliminate water crossing risks. Always refer to the vehicle manufacturer's published specifications 
and assess conditions carefully.

Cabin Water Ingress
If water enters the cabin, evacuate it as soon as practical. The Grenadier is equipped with floor 
drain valves that should be opened when safe to minimise damage to carpets, trim and electrical 
systems.

Air Filtration & Dust Management
GrenX does not recommend oiled air filters due to potential sensitivity of the BMW engine 
management and MAF sensor system. GrenX recommends a dry filter element. Performance filters 
designed primarily for airflow and horsepower may be suitable for road use but may not provide the 
filtration efficiency required for severe off-road conditions. Engine protection should take 
priority over maximum airflow. An engine can tolerate minor airflow restriction far better than 
dust contamination.

GrenX 8-Layer Dry Filter Element
The GrenX Airbox is designed around a high-quality 8-layer dry filter element. Carrying a spare 
filter is recommended for remote touring and dusty environments.

Dust Socks & Pre-Filters
External snorkel socks or pre-filters may provide additional protection during extended dusty 
travel. They should be inspected and cleaned regularly. Excessively dirty socks may restrict 
airflow and negatively affect performance.

Post-Crossing Inspection
After significant water crossings, re-open the drain valve, inspect the viewing window, inspect the 
filter if water ingress is suspected, check for warning lights, inspect snorkel openings for debris 
and inspect driveline breathers. If water is visible or suspected, do not operate the vehicle until 
the intake system has been inspected.

Viewing Window Inspection
The viewing window is intended as a rapid inspection aid only and does not replace direct 
inspection when contamination or water ingress is suspected.

Initial Inspection After Installation
Inspect the snorkel system after approximately 500 km and during the next scheduled service. Verify 
bracket alignment, fastener security, hose clamp tightness and sealing integrity.

Periodic Inspection & Maintenance
Inspect the snorkel system during routine servicing, after major trips, corrugated roads, impacts, 
significant water crossings or whenever unusual intake behaviour is observed. Vehicles used in 
dusty environments should be inspected more frequently.

Snorkel Impact Inspection
After impacts with branches, vegetation, recovery equipment or obstacles, inspect for cracks, 
distortion, movement, damaged seals, loose fasteners and air leaks.

Installer Responsibility
Correct installation is critical. The installer is responsible for ensuring all snorkel, airbox, 
ducting, hose, clamp and sealing connections are correctly assembled and appropriately sealed. The 
installer must verify system integrity after installation.

Driver Reminder
Before water crossings: close drain valve, activate wading mode, assess depth and recovery options. 
After crossings: open drain valve, inspect the viewing window and check for signs of water ingress.

Quick Reference
Normal driving: Drain valve OPEN.

Vehicle washing: OPEN.

Heavy rain: OPEN.

Dusty conditions: OPEN. 

River crossings: CLOSED.

After crossing: OPEN and inspect viewing window.

Warranty & Disclaimer
Failure to inspect and maintain the snorkel system may reduce performance and affect warranty 
eligibility. No snorkel system can guarantee protection from engine damage, water ingress, recovery 
costs, vehicle damage or component failure. The vehicle owner and driver remain responsible for 
operation, inspection and maintenance.

Thank You
Thank you for supporting this community-funded project. The GrenX Snorkel and Airbox System was 
developed through the support, feedback, testing and real-world experience of the INEOS Grenadier 
community. Without your support, this solution would not have been
possible.

See you on the tracks. – The GrenX Team