do88 Cold Air Intake System - BMW M240i (G42) / M340i (G20) 2018-2026

do88 Cold Air Intake System - BMW M240i (G42) / M340i (G20) 2018-2026

do88 SKU: DOBLF-240-OE
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This is do88's fully sealed intake system for the B58 Gen 2 in the layout that connects straight to the original plastic turbo inlet. A 7 inch sealed airbox with a heat shield and a secondary air feed keeps intake air temperatures down next to the exhaust manifold, and the carbon intake tube starts at 105mm (4.1 in) before tapering into the turbo inlet. do88 measured a 15% airflow increase over the factory intake on their SuperFlow SF1020 flow bench, and 23% when their optional turbo inlet is added. The densely knitted cotton gauze filter is washable and reusable, and the system omits the two factory sound silencers so turbo spool is audible.

Specifications

Type Sealed cold air intake system
Filter Media Densely knitted cotton gauze, washable and reusable
Intake Tube Carbon fibre, 105mm (4.1 in) tapering to the turbo inlet
Airbox Fully enclosed 7 in airbox with heat shield and secondary air feed
Turbo Inlet None; connects to the OE plastic turbo inlet
Airflow Increase 15% over OE (do88 SuperFlow SF1020 flow bench)
Quantity 1
OEM Replacement 13718635100, 13718635102, 13718656983, 11618689501
Part Number LF-240-OE

Documents: Installation Instructions (PDF)

This part fits:

Year Make Model Submodel
2022 BMW 2 Series M240i / M240i xDrive (G42)
2023 BMW 2 Series M240i / M240i xDrive (G42)
2024 BMW 2 Series M240i / M240i xDrive (G42)
2025 BMW 2 Series M240i / M240i xDrive (G42)
2026 BMW 2 Series M240i / M240i xDrive (G42)
2018 BMW 3 Series M340i / M340i xDrive (G20/G21)
2019 BMW 3 Series M340i / M340i xDrive (G20/G21)
2020 BMW 3 Series M340i / M340i xDrive (G20/G21)
2021 BMW 3 Series M340i / M340i xDrive (G20/G21)
2022 BMW 3 Series M340i / M340i xDrive (G20/G21)
2023 BMW 3 Series M340i / M340i xDrive (G20/G21)
2024 BMW 3 Series M340i / M340i xDrive (G20/G21)
2025 BMW 3 Series M340i / M340i xDrive (G20/G21)
2026 BMW 3 Series M340i / M340i xDrive (G20/G21)

Shipping

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  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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