MMX Air Intake Kit - BMW B58 M140i, M240i, 340i, 440i
Delivery, Returns & Stock Information
- With popular products we will always aim to hold stock to ensure rapid delivery times across the UK.
- With less commonly ordered products we rely on drop shipping from our suppliers, this can occasionally result in delays in delivery times.
- Where a product is required urgently please contact us first before placing your order so we can check stock and delivery times to ensure no disappointment.
- Once an order is placed we aim to be in touch within 24 hours with either your delivery details or estimated time of delivery for your products.
- Need to return an item? No problem, get in touch and we can explain the next steps.
Price Match
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Product Queries
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Does this fit my car?
This product is compatible with the following models and year ranges:
If you're looking for the ultimate cold air intake for your B58-powered BMW, the MMR Performance intake kit is simply the most sophisticated and highest-flowing option on the market.

You'll hear the rich induction noise from this race-bred intake the first time you accelerate hard!
The dual-entry high-flow air filter is at the heart of the MMR intake, fixed into an aluminium bell-mouth design. By removing the OE airbox's inherent restrictions, our intake will support the increased performance outputs that a highly-tuned B58 engine can produce, whilst unlocking a truly addictive soundtrack at the same time. You'll hear the rich induction noise from this race-bred intake the first time you accelerate hard!
The heat-shield is a very important part of this intake kit. It retains the factory cold-air entry feed, plus ensures that this cold, fresh air is shielded away from the heat generated from the turbo and exhaust manifold. The heat shield is beautifully finished with billet support fixings and stunning, real carbon fibre support rods; looking great in the engine bay.
Meanwhile, we've incorporated rubber-mounted billet fixing mounts to allow for compliance under engine-rock and prevent any undesirable NVH (Noise, Vibration, Harshness) from entering the cabin. In other words, every aspect of this intake has been considered and obsessed over in the minutest detail.
Product Features
- Increased engine performance.
- Enhanced induction noise.
- High-flow dual-entry cotton gauze air filter.
- Bell-mouth intake pipework.
- Billet aluminium mounting brackets with rubber isolators.
- Carbon fibre support rods.
Product Fitment