Sale Price:
£279.00
Original Price:
£319.00
Designed as a direct replacement for the restrictive standard airbox and paper filter found on the BMW B37 and B47 diesel engines. This kit combines an 80mm high-flow cone filter with a custom PA6-CF carbon fibre heatshield and charge pipe, engineered to maximise airflow while actively blocking heat soak from the engine bay. The heatshield mates directly onto the lower OEM airbox clips with no cutting, drilling or modifications required.
The carbon fibre construction keeps intake air temperatures low, which translates into real-world gains in BHP and torque. Expect sharper throttle response and a noticeably improved induction note over the standard setup.
Designed and manufactured in the UK.
Why PA6-CF carbon fibre?
The heatshield and charge pipe are manufactured from PA6-CF, a carbon fibre reinforced nylon used in motorsport and performance automotive applications. It has a continuous service temperature of 200°C, making it more than capable of handling sustained engine bay heat without warping, softening or degrading. Unlike plastic or fibreglass alternatives, it will not deform over time in close proximity to the engine, keeping the intake geometry consistent and your performance gains lasting.
What you get
80mm high-flow cone filter
Custom carbon fibre heatshield with direct OEM clip fitment
Custom carbon fibre charge pipe with MAF boss
No modifications required
Blanking bung for the breather pipe
Key benefits
Increased BHP and torque through improved airflow over the stock intake system
Improved throttle response and induction sound
PA6-CF carbon fibre heatshield prevents heat soak and keeps intake temperatures low
Charge pipe includes MAF boss for direct sensor fitment
Mates directly to lower OEM airbox clips, no cutting or drilling needed
Designed and manufactured in the UK
Compatible models
F20 F21 114d, 116d, 116d ed, 118d, 118dX, 120d, 120dX, 125d
F22 F23 218d, 220d, 225d
F30 F31 316d, 318d, 318dX, 320d, 320d ed, 320dX, 325d, 328d, 328dX
F32 F33 F36 418d, 420d, 420dX, 425d
B37 (1.5L) & B47 (2.0L)
OEM airbox part number cross-reference
13 71 8 578 649 / 13718578649 / 8 578 649 / 8578649
13 71 8 578 650 / 13718578650 / 8 578 650 / 8578650
13 71 8 572 472 / 13718572472 / 8 572 472 / 8572472
Please Note:
Some vehicles may encounter a light on the dash once this kit has been fitted, the MAF may need calibrating to account for the extra airflow.
Delivery Information
Worldwide postage available.
Orders are typically dispatched within 1-3 days of order being placed. If the item is out of stock this may cause delays, please check with us before ordering if this would be of concern.
Disclaimer
BM Performance Limited does not accept any liability if any damage is caused to your car by the installation of this product. Professional installation is recommended for our products. We offer installation for all products, contact us for quotation.
Designed as a direct replacement for the restrictive standard airbox and paper filter found on the BMW B37 and B47 diesel engines. This kit combines an 80mm high-flow cone filter with a custom PA6-CF carbon fibre heatshield and charge pipe, engineered to maximise airflow while actively blocking heat soak from the engine bay. The heatshield mates directly onto the lower OEM airbox clips with no cutting, drilling or modifications required.
The carbon fibre construction keeps intake air temperatures low, which translates into real-world gains in BHP and torque. Expect sharper throttle response and a noticeably improved induction note over the standard setup.
Designed and manufactured in the UK.
Why PA6-CF carbon fibre?
The heatshield and charge pipe are manufactured from PA6-CF, a carbon fibre reinforced nylon used in motorsport and performance automotive applications. It has a continuous service temperature of 200°C, making it more than capable of handling sustained engine bay heat without warping, softening or degrading. Unlike plastic or fibreglass alternatives, it will not deform over time in close proximity to the engine, keeping the intake geometry consistent and your performance gains lasting.
What you get
80mm high-flow cone filter
Custom carbon fibre heatshield with direct OEM clip fitment
Custom carbon fibre charge pipe with MAF boss
No modifications required
Blanking bung for the breather pipe
Key benefits
Increased BHP and torque through improved airflow over the stock intake system
Improved throttle response and induction sound
PA6-CF carbon fibre heatshield prevents heat soak and keeps intake temperatures low
Charge pipe includes MAF boss for direct sensor fitment
Mates directly to lower OEM airbox clips, no cutting or drilling needed
Designed and manufactured in the UK
Compatible models
F20 F21 114d, 116d, 116d ed, 118d, 118dX, 120d, 120dX, 125d
F22 F23 218d, 220d, 225d
F30 F31 316d, 318d, 318dX, 320d, 320d ed, 320dX, 325d, 328d, 328dX
F32 F33 F36 418d, 420d, 420dX, 425d
B37 (1.5L) & B47 (2.0L)
OEM airbox part number cross-reference
13 71 8 578 649 / 13718578649 / 8 578 649 / 8578649
13 71 8 578 650 / 13718578650 / 8 578 650 / 8578650
13 71 8 572 472 / 13718572472 / 8 572 472 / 8572472
Please Note:
Some vehicles may encounter a light on the dash once this kit has been fitted, the MAF may need calibrating to account for the extra airflow.
Delivery Information
Worldwide postage available.
Orders are typically dispatched within 1-3 days of order being placed. If the item is out of stock this may cause delays, please check with us before ordering if this would be of concern.
Disclaimer
BM Performance Limited does not accept any liability if any damage is caused to your car by the installation of this product. Professional installation is recommended for our products. We offer installation for all products, contact us for quotation.
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