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do88 Intake system, BMW M140i M240i 340i 440i F3X

SKU: LF-260

Sale price$426.98

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Product Information

do88 proudly presents the Intake System for BMW M140i M240i 340i 440i F3X, engineered for high power outputs!

Filtration, airflow and heat are the key considerations when designing a new intake system for a turbocharged engine.

Our do88 intake system has been developed to provide the turbo with good filtration, improved airflow path while also maintaining low inlet temperatures. One design challenge for this B58 Intake system is the location, it is just next to the exhaust manifold which rapidly heat soaks this position in the engine bay.

High air intake temperatures are terrible for the engine performance as the turbo would have to build boost with hot, less dense air. This is why a fully sealed intake system is the only way to go to ensure IAT’s are kept to a minimum. To eliminate hot air from being drawn into the air filter we designed a heat shield and lid that together with rubber sealings makes our system feed the engine with nice cold air. Our intake system uses the OE fresh air inlet duct that feeds the air filter with fresh air.

As replacement to the OE plastic intake pipe, we designed a large 85mm (3,3”;) mandrel bent aluminum pipe which expands to 93mm (3,7”;) towards to the turbo inlet elbow. We didn´t take any shortcuts when we designed the inlet pipe, we sourced the unusual size of 85mm to get the correct inner diameter for the MAF-sensor. Many competitors sell kits with 89mm (3,5”;) inlet pipes which is easy to source. But the danger with 89mm pipe is that the MAF-reading will be wrong and therefor causing the fuel mixture to be lean. It is not uncommon to get CEL (Check Engine Light) with such setup. Fitted to our intake pipe is a large custom-designed air filter. The filter has a densely knitted cotton gauze for superior filtration. The filter is of course washable and reusable for optimum performance and long service life.

The original air filter box and turbo inlet hose are designed with elements that minimize the noise produced by the turbo and the air induction. Specifically, the factory intake hose features a large sound silencer to ensure the turbo operates quietly. In contrast, our intake system comes without these noise-reducing elements, allowing you to hear turbo spool and induction sound.

Key features:

  • Large 85mm (3,3”;) custom-designed cotton air filter with densely knitted cotton gauze. The filter is delivered without any filter oil applied therefore we recommend that the air filter is applied with cotton filter oil to increase air filtration if you drive your car in any dusty environments. You can for example use BMC Filter oil with part number "WAFLU250".
  • Washable air filter for optimum performance and long service life.
  • We recommend cleaning the air filter every 10.000 km, please use universal cleaning product designed for cotton air filters. You can for example use BMC Washing fluid with part number "WADET500".
  • 85mm (3,3”;) Aluminum inlet pipe that has the correct inner diameter for MAF-sensor. This will avoid getting CEL (Check Engine Light) which many competitor kits can give you.
  • Our tests shows 0,4 second faster 100-200km/h time on a stage 2 car.
  • A fully enclosed / sealed design, ensuring that only cold air is supplied to keep the IAT´s low.
  • Precision-engineered, design-optimized for unrestricted airflow.
  • Optimized for tuned engines, hybrid turbos and big turbo kits.
  • Increases airflow up to 39%
  • Reduced pressure drop and strain on factory components compared to OE intake.
  • Improved throttle and boost response.
  • Smooth design with no sharp or harsh bends or restrictions.
  • Produces an enhanced induction sound from the turbocharger and diverter valve.
  • Compatible with most future mods, i.e. turbo upgrades.

What's Included:

  • do88 Intake system, BMW M140i M240i 340i 440i F3X

NOTE: Product images shown may not be an exact representation of the actual product.

Model   + Drivetrain  
F20 M140i 3.0T I6 [B58] +
F22 M235 xDrive 3.0T I6 [N55] +
F22 M240i 3.0T I6 [B58] +
F30 340i 3.0T I6 [B58] +
F31 340i 3.0T I6 [B58] +
F32 440i 3.0T I6 [B58] +
F33 440i 3.0T I6 [B58] +

Return and Exchange Policy

The Return & Exchange Policy below outlines our current terms. While we try to adhere strictly to the guidelines detailed below, there are always exceptions to the rules, please speak to a BMP Tuning Customer Support Representative for clarification on anything you might have questions about - contact us.


Order Cancellations

Order Cancellation Hours of Operation

  • All order cancellations are processed during regular business hours only. Any order cancellation requests made outside of normal business hours will be processed during the next business day.

Order Cancellation Fees

  • Any cancelled orders including orders that have not shipped will be subject to a 5% cancellation fee to offset order processing fees that are not refunded to BMP Tuning by financial institutions and fee is waived completely if store credit is requested.
  • Cancellation fee applies to any order regardless of stock status, please contact BMP Tuning if there are any questions regarding stock status before placing an order.
  • If an order has already been processed or shipped and BMP Tuning is unable to cancel the order, the customer will be responsible for returning the item to us once received. Once the return is received it will be processed like any other return and be subject to the "Return and Exchange Policy" listed below.  
  • Certain products sold cannot be cancelled after the order has been placed due to agreements with the manufacturer, or in the case of made to order/custom items. This may be noted in the product description, but feel free to contact us to make sure before ordering.
  • Any order placed via Katapult are non-refundable; refunds, if required, will be issued via store credit only.

Return & Exchange Policy

Domestic Orders

  • BMP Tuning will accept returns for unused products within 1 year/365 Days from the date of purchase.
  • Returned products must be new, unused, and must be in the original packaging, including labeling, manuals, hardware, etc.  Special order items are non-refundable.
  • Returns will NOT be processed for any received products without the proper RMA Form completed and included with the return, customer will also be responsible for return shipping to their original shipping address.
  • Returns beyond 60 days of original purchase once processed can only be refunded as BMP Tuning store credit.
  • In the case of an exchange, BMP Tuning will waive normal restocking fees and only collect for original shipping of the returned product unless otherwise stated by a BMP Tuning Customer Service Representative when requesting your RMA number.
  • Once store credit has been issued for a return, it is final and cannot be reversed or exchanged for a refund to your original payment method at a later time. Please ensure you are comfortable with receiving store credit before completing your return.
  • Contact us within 7 days of delivery if an item has arrived damaged or incorrectly so that we can rectify the situation with the responsible party. Any notifications past 7 days from delivery could cause issues with replacement and BMP Tuning is not liable for any mis-shipments or damaged items if notified past the 7th day.
  • Once delivered to shipping address provided, packages are customer’s responsibility—consider requesting a signature upon delivery or insuring your order with Route.

International Orders

  • New, unopened products can be returned within 60 days of purchase.
  • Opened/used products and Scratch & Dent parts cannot be returned.
  • Contact us within 7 days if your item is damaged upon receipt.
  • Once delivered, packages are customer’s responsibility—signature confirmation is available upon request.
  • Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.

Return Fees & Shipping:

  • Customer is responsible for a 20% restocking fee, original shipping, and return shipping. 
  • In instances where the customer received FREE shipping, the shipping amount that BMP Tuning paid on behalf of the customer will be deducted from the total refund.
  • BMP Tuning's restocking fee is waived in the instance customer requests store credit as long as the item is being returned to BMP Tuning and not the manufacture directly.
  • Any orders that are returned to BMP Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our "Return and Exchange Policy", including a 20% restocking fee.
  • Any returns that are denied for any reason will be sent back to the customer at the customers expense. Any denied return left with BMP Tuning longer than 30 days is considered forfeited by the customer and will be disposed of by BMP Tuning at BMP Tuning's discretion.
  • Any order placed via Katapult are non-refundable; refunds, if required, will be issued via store credit only.

Route Shipping Protection - Refunds & Cancellations

  • Route shipping protection is an insurance purchased for your shipment. Because of this, any protection on items that have already been shipped cannot be refunded.
  • If your order is cancelled PRIOR to the items shipping, then the Route purchase can be refunded with the cancelled item(s). Once the order has shipped, we cannot refund the Route shipping protection.

Tariffs & Duties – No Refund Upon Return

  • BMP Tuning is not responsible for any tariffs, duties, or import fees charged by customs authorities or shipping carriers.
  • If you return an item, any tariff or duty you paid at delivery will not be refunded by BMP Tuning, as those are non-refundable government charges.
  • Refunds for returned items will be limited to the cost of the product (minus applicable fees), not including any tariffs or duties originally paid.
Additional Notes
  • Please ensure you understand your country’s import fee obligations prior to ordering.
  • If you have questions about potential tariffs, duties, or returns, contact us before placing your order—we’re happy to assist.
  • All existing policy conditions (restocking fees, RMA requirement, return shipping responsibilities) still apply as stated in the original policy.


Product Return Exemptions

Tuning Software And Cables

BMP Tuning will NOT accept returns for any tuning software or tuning cables. This includes, but is not limited to:

  • ECU Tunes
  • TCU Tunes
  • Tuning Cables such as IE POWERlink V4 Flash Cable, APR Ultralink, Unitronic UniCONNECT+ Cable, 034Motorsport Dynamic+ Tuning Cable
  • Plug and Play Tuners such as Burger Motorsports JB4, COBB AccessPort
  • OBDEleven Pro

Scratch & Dent, Open Box, and Clearance Items

There are absolutely no returns on any product sold as "Scratch & Dent", "Open Box", or "Clearance." 


Pricing Or Photo Errors

  • While we always try to provide the most accurate product and pricing information, we are humans and can make mistakes. If we listed an incorrect price or information for any product on our site, BMP Tuning reserves the right to refuse or cancel any orders placed. PRICING AND AVAILABILITY ARE SUBJECT TO CHANGE WITHOUT NOTICE.
  • We try to ensure that all products are represented properly in description and photo. However, due to photos provided from manufacturers, sometimes a photo might be outdated or a generic photo for the part may be used for the item. If you have any questions about any product, please contact us before placing your order.

 


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