Inlet Hose for BMW B58 (M140i, M240i, M340i, M440i)

Regular price
£73.49
Regular price
Sale price
£73.49
Shipping calculated at checkout.

When looking at the B58 engine within the M140i/240i/340i/440i engine bay it’s clear that BMW had left some room for modification within the inlet tract, the sound resonator and accordion ribs cause significant turbulence to the airflow causing a detriment to the engine’s potential performance. By removing these, and replacing it with five-ply silicone construction you gain a host of performance upgrades, including:

  • Significant power gain of over 9bhp engine power and 7nm of torque.
  • Improved induction noise.
  • Multi ply silicone construction improves longevity of FMINLH25 over that of the OEM hose.
  • 5 ply silicone construction will be able to handle strain of engine mapping far better than OEM hose.
  • Fitting with no specialist tools in approximately half an hour.

Testing was completed using Performance Remap in Gloucester with their VTEC 4 wheel drive dynamometer, This was to ensure all our data has been achieved with results as accurately as possible by an independent tuner. The results below speak for themselves, also with the added benefit of being a very easy component to fit with no specialist tools this is superb, affordable modification for the BMW enthusiast.

From the dyno graph shown, performance gains can be expected from 4500RPM to the red line with +9BHP and +7NM of torque at peak RPM. Not only is FMINLH25 a functional improvement, but with it being available in black and red this product really helps to improve the aesthetics of the engine bay.

One major difference of FMINLH25 is the diameter of the hose at the airbox end. Usually this is 85mm diameter, however FMINLH25 is 90mm diameter, and uses a silicone reducer sleeve so that it fits the OEM airbox correctly. This increase of 5mm diameter allows the inlet hose to be used with a wider variety of airbox/intake systems while also increasing the volume and de-restricting the flow of the OEM part,

 

 

This product is a direct fit for the OEM part 13718601682 (just the turbo inlet to airbox section).

  • The hoses are suitable to be used with either modern long-life coolants, Organic Acid Technology coolants (O.A.T.) or air containing oil mist.
  • The construction of the hoses has been engineered to exceed that of the OEM fitments and will enhance any engine bay both technically and aesthetically.
  • Lifetime warranty.

Why not pair this with our Forge Motorsport replacement high flow panel filter (FMPAN-0172) if you are using the OEM airbox.

Complimentary Products

What are the delivery methods and charges for UK, Europe and Rest of World (ROW)?


Regal Autosport uses a variety of shipping services to give the best combination of value, service and speed to our customers. This will vary on location, value of the time and size to name a few.


Regal Autosport may drop-ship directly from the manufacturer to the customer if the product is a non-stock item and this provides the best value and service. If this is the case, the delivery method may be different.


Shipping is calculated automatically at the checkout, depending on your location and the products ordered. On occasion, the shipping price may be incorrect due to your location or the product being oversized in dimension or weight. Whilst we try to be as accurate as possible with our shipping prices, from time to time they might be inaccurate. We will not know until we process your order if this is the case, we will contact you if this is the case and provide you with the option of cancelling or payment of the difference.


Due to the value of the products sold we only deliver to the verified address of any payment method OR any address if paid for by bank transfer. Thanks to scammers, we simply do not take the risk and any order which does not have a verified address will be cancelled.


Any customer with an order which has been damaged in transit must notify Regal Autosport immediately and within 14 calendar days of shipping. If this is not done, the shipping insurance cannot be used, and you will not be compensated. 


United Kingdom Mainland


Within the United Kingdom Mainland, we use DPD Local. This service is a next working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day. A working day is Monday - Friday only.


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day.


United Kingdom Non-Mainland 

Within the United Kingdom Non-Mainland, we use DPD Local. This service is a next working day or 2 working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day or the second working day. A working day is Monday - Friday only. 


Europe 

For Europe, we use DHL. Your delivery location will determine the transit time. Orders in-stock and placed before 2PM will ship the same working day. A working day is Monday - Friday only. 


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then be able to track your order and see an estimated delivery date. 


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day. 


Rest of World (ROW) & Oversize 


For ROW and oversize items, we typically use DHL Express. Your delivery location will determine the transit time. Orders in-stock and placed before 2 PM will ship the same working day. A working day is Monday - Friday only. 


Tracking is manually sent to your email address once your order has been processed for shipping. You will then be able to track your order and see an estimated delivery date. 


Please note: The above is a general guide to how we plan to ship your order. From time to time this may change and we may decide to ship with other couriers.