Overview
The factory B4x/B58 heat exchanger just isn’t designed to handle the intense demands of a modified build. Its thin core can easily become overwhelmed, causing intake air temperatures (IAT) to soar after just a few wide-open throttle (WOT) pulls or even a short stint on the track. When temperatures rise, the factory ECU kicks in to protect your engine by pulling timing and reducing power, preventing potential overheating and damage. For automotive enthusiasts who love pushing their vehicles to the limit, this cooling constraint can be quite a hurdle.
Enter the Dinan B4x/B58 heat exchanger, specifically crafted for the F2x/F3x chassis. This upgrade tackles those cooling challenges head-on with a sturdier core—48mm thick compared to the OEM’s 27mm. With a whopping 78% more heat transfer surface area, it significantly boosts cooling capacity. The thicker core also necessitates unique “L” shaped end tanks, which enhance the overall thermal mass, allowing for better heat absorption, storage, and release than the original setup. With an impressive delta of up to 15° in IAT compared to stock, the Dinan heat exchanger is ready to help your vehicle consistently deliver peak performance, making every drive a joy!
Features:
- Average reduction of 8° in IAT, with a maximum drop of 15° over 15 successive WOT pulls
- Minimizes the risk of heat soak and limp mode activation
- Robust 48mm thick Dinan cooler versus the stock 27mm cooler
- 78% more cooling surface area and volume than the original
- Completely TIG welded and pressure tested for reliability
- Includes installation hardware, including xDrive-specific transmission oil cooler brackets
Specifications:
- Dinan Point Value: 2
- Emission Code: 7
- Labor Time (Hours): 4
- Product Type: Heat Exchanger
- UPC: 810065215215
Install Instructions:
- For detailed instructions, CLICK HERE
Fitment:
- BMW 230i Base 2017-2021
- BMW 230i XDrive Base 2017-2021
- BMW 330i Base 2017-2018
- BMW 330i GT XDrive Base 2017-2019
- BMW 330i XDrive Base 2017-2019
- BMW 340i Base 2017-2018
- BMW 340i GT XDrive Base 2017-2019
- BMW 340i XDrive Base 2016-2018
- BMW 430i Base 2017-2020
- BMW 430i Gran Coupe Base 2017-2020
- BMW 430i XDrive Base 2017-2020
- BMW 430i XDrive Gran Coupe Base 2017-2020
- BMW 440i Base 2017-2020
- BMW 440i Gran Coupe Base 2017-2020
- BMW 440i XDrive Base 2017-2020
- BMW 440i XDrive Gran Coupe Base 2017-2020
- BMW M240i Base 2017-2021
- BMW M240i XDrive Base 2017-2021
Note: Due to the larger core and unique “L” shaped end tanks, some minor modifications to the plastic core stack shroud may be necessary, especially for factory configurations with the optional OEM hot climate heat exchanger. Please refer to the installation PDF for more details on what this entails.
Emissions:
7 – This part complies with the EPA’s Tampering Policy dated November 23rd, 2020. We have reasonable test results to confirm that this product enables your vehicle to operate within legal emissions standards, making it legal for street use in all states that adhere to the Clean Air Act and EPA Tampering Policy. Please note, this product is NOT LEGAL FOR SALE OR USE IN CALIFORNIA. Testing with the California Air Resources Board for 50-state compliance is currently pending. Once testing is complete and an E.O. number is issued, this product will be updated to reflect 50-state legal status.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Fitment
Make Vehicle | Model | Year |
---|---|---|
2017-2021 BMW 230i | 230i | 2017-2021 |
2017-2019 BMW 330i | 330i | 2017-2019 |
2016-2019 BMW 340i | 340i | 2016-2019 |
2017-2020 BMW 430i | 430i | 2017-2020 |
2017-2020 BMW 440i | 440i | 2017-2020 |
2017-2021 BMW M240i | M240i | 2017-2021 |
About Brand
Who is Dinan?
Dinan was founded in 1979 and has since established itself as North America’s premiere BMW tuner. The company produces the most comprehensive product line of high-performance parts and systems which are also distributed in selected BMW dealerships and independent BMW High-performance service facilities. Today, they have expanded their product range by offering their products for other European brands as well such as Mini and Mercedes Benz.
European Car Experts
Dinan has consistently produced quality parts and is considered as a company who serves the industry-leading warranty program. This has helped the company become a household name for the majority of BMW enthusiasts.
The company is known to produce parts that are reliable and enhance the performance of the cars. As proof, reputable publications have conducted road tests on vehicles equipped with Dinan products, and the results show that these vehicles are at par with some of the most exotic cars in the world.
The company offers a variety of products ranging from suspension parts, electronics, drivelines, chassis tuning components, and engines. Dinan understands that every BMW driver wants to improve their vehicle. Hence, they produce products that bring out the best out of the vehicle. They have become the brand of choice by tuners who demand the best, and Dinan has consistently given it to them over the years.
Purchase Dinan Products at Vivid Racing
European cars are known to be the most reliable and top-performing cars in the market. But it does not hinder enthusiasts to further exploit its potential. Dinan is the expert when it comes to improving these cars and has been trusted by many. Visit Vivid Racing and check out their list of products that would fit your specific requirement.
Warranty
We consider our limited warranty coverage to be a very important component of each Dinan Performance Product and we want you to fully understand it. Dinan’s objective is to enhance the enthusiast’s driving experience by designing and manufacturing the best performing and highest quality automotive products possible. Our limited warranty is intended to cover Dinan products when they are used in the manner for which they were originally designed. Like any manufacturer, we cannot be responsible when our products are subjected to misuse, improper installation, misapplication, modification or neglect. Consumers are encouraged to familiarize themselves with the specifics of Dinan’s Limited Warranty, including exclusions and potential effects to the manufacturer’s limited new car warranty, prior to making the decision to purchase and install Dinan products and systems. Consumers are invited to contact Dinan at 408-779-8584 with any questions regarding Dinan’s limited warranty coverage, procedures, exclusions, etc.
Enthusiast customers should also be aware of the Magnuson Moss Warranty Act which can be viewed in its entirety here.
CARS COVERED BY THE ORIGINAL VEHICLE MANUFACTURER’S NEW CAR LIMITED WARRANTY
US and Canadian Specification Vehicles Only. Outside of the aforementioned areas please contact your importer for details.
If your vehicle is currently covered by the vehicle manufacturer’s new car limited warranty, Dinan products are warranted for the remaining term of the vehicle manufacturer’s new car limited warranty. The manufacturer’s new car warranty is limited to 4 years or 50,000 miles (80,000 kilometers in Canada), commencing on the date of first retail sale or the date the vehicle is first placed in-service as a demonstrator or company vehicle, whichever is earlier. Dinan’s warranties are transferable when ownership of the vehicle into which the Dinan products were originally installed is sold.
To obtain service under this warranty, the vehicle must be brought, upon discovery of a malfunction or defect in materials and/or workmanship, to the workshop of any Authorized Dinan Dealer, during normal business hours. Proof of purchase in the form of a lawful invoice is required. The Authorized Dinan Dealer will, without charge for parts or labor, repair or replace the defective Dinan component(s), as well as any original vehicle manufacturer’s component(s) that may have been directly affected by a Dinan component, using new or authorized remanufactured parts. The decision to repair or replace said parts is at the sole discretion of Dinan and/or the original vehicle manufacturer. Parts for which replacements are supplied under this limited warranty become the property of Dinan and/or the original vehicle manufacturer. In all cases, a reasonable period of time must be allowed for warranty repairs to be completed after the vehicle is delivered to the Authorized Dinan Dealer.
CARS NO LONGER COVERED BY THE ORIGINAL VEHICLE MANUFACTURER’S NEW CAR LIMITED WARRANTY
Dinan Performance Products are warranted for a 2-year, unlimited mileage period from the date of original purchase. Dinan’s warranties are transferable when ownership of the vehicle into which the Dinan products were originally installed is sold.
To obtain service under this warranty, the vehicle or Dinan product must be brought, upon discovery of a malfunction or defect in materials and/or workmanship, to any Authorized Dinan Dealer during normal business hours. In the event of a warranty claim, Dinan will repair or replace, at its sole discretion, any defective Dinan component upon receipt of the item and proof of the original purchase in the form of a lawful invoice. This warranty does not include reimbursement for repairs to any original vehicle manufacturer’s component(s) that may have been affected by a Dinan component. Labor charges associated with the repair or replacement of a Dinan product will be reimbursed at the Authorized Dinan Dealer’s standard hourly rate, based upon the original vehicle manufacturer’s and/or Dinan’s schedule of flat rate labor times. The defective component must be returned to Dinan for verification of the defect before any warranty adjustment will be made. A reasonable period of time must be allowed for warranty replacement, shipping and/or repairs to be completed after the vehicle or product is received by an Authorized Dinan Dealer or Dinan’s facility.
DINANTRONICS SPORT PRODUCT WARRANTY
DINANTRONICS Sport products are warranted against material and workmanship defects for a 1-year, unlimited mileage period from the date of original purchase. This warranty does not cover any consequential damages (neither parts nor labor) that may be caused as a result of the installation or use of this product.
To obtain service under this warranty, Dinan tech support must be made aware of the malfunction or defect in materials and/or workmanship of the DINANTRONICS Sport module upon discovery, via an Authorized Independent Dinan Dealer or directly to Dinan during normal business hours. In the event of a valid warranty claim, Dinan will repair or replace, at its sole discretion, any defective Dinan component upon receipt of the item and proof of the original purchase in the form of a lawful invoice. In the event of a defect the defective unit must be returned to Dinan for verification of the defect before any reimbursements will be issued. A reasonable period of time must be allowed for warranty replacement, shipping and/or repairs to be completed after the product is received by an Authorized Dinan Dealer or Dinan’s facility.
REFURBISHED PRODUCT WARRANTY
Refurbished products are warranted against material and workmanship defects for a 90-day, unlimited mileage period from the date of original purchase. This warranty does not cover any consequential damages (neither parts nor labor) that may be caused as a result of the installation or use of this product.
To obtain service under this warranty, Dinan tech support must be made aware of the malfunction or defect in materials and/or workmanship of the refurbished product upon discovery, via an Authorized Independent Dinan Dealer or directly to Dinan during normal business hours. In the event of a valid warranty claim, Dinan will repair or replace, at its sole discretion, any defective Dinan component upon receipt of the item and proof of the original purchase in the form of a lawful invoice. In the event of a defect the defective unit must be returned to Dinan for verification of the defect before any reimbursements will be issued. A reasonable period of time must be allowed for warranty replacement, shipping and/or repairs to be completed after the product is received by an Authorized Dinan Dealer or Dinan’s facility.
RACING ONLY PRODUCTS
Due to the nature of the intended use, Dinan Racing Products are guaranteed against defects in workmanship only. These products are not warranted against wear and/or failure under any circumstances. These products do not fall under the standard Dinan Limited Product Warranty. Racing-only parts may also affect the BMW warranty and emissions warranty.
The Dinan Limited Warranty Specifically Excludes:
Return shipping charges, towing charges, rental car fees damage to a component or assembly due to the installation of replacement parts with specifications that differ in any material respect from the original vehicle manufacturer’s or Dinan parts, damage resulting from the unauthorized modification of a Dinan part or assembly, damage resulting from the use of other manufacturer’s products in conjunction with Dinan products or systems, damage to the clutch due to power shifting or abuse, brake rotor warp, friction materials, maintenance services and parts when replaced during maintenance such as spark plugs, lubricants, fluids, engine tune-up parts, replacement of filters, coolant and refrigerant, mechanical adjustments or repairs which result from normal wear and tear, drive-belts, light bulbs, damage due to the failure to perform maintenance services at the specified intervals or in accordance with the instructions in the owner’s manual from the original vehicle manufacturer or Dinan’s product instructions, damage attributable to negligence or abuse, improper installation, improper treatment or treatment contrary to the instructions in the owner’s manual from the original vehicle manufacturer or Dinan’s product instructions, engine damage resulting from alteration of Dinan’s original boost pressure, damage resulting from the use of improper or contaminated fuel, damage occurring through corrosion resulting from weak or improper coolant, damage to a Dinan component as a result of a collision or improper collision damage repairs, any vehicle operated in any competitive event or subjected to aggressive track conditions, custom-designed competition parts, damages resulting from loss of time, inconvenience or loss of the use of the vehicle, damage resulting from environmental influences, flood, accident, fire damage, or road salt corrosion, re-manufactured or refurbished products or components (these products are clearly identified as re-furbished and are warranted for the period specified for that particular product).
General
The installation of Dinan Performance Products and systems may affect the vehicle manufacturer’s new car limited warranty. The vehicle manufacturer’s new car limited warranty may not apply to modifications to a vehicle or the installation of any performance accessories or components attached to the vehicle which substantially alter the original engineering and/or operating specifications or which result in damage to other original vehicle manufacturer’s components.
This warranty shall be null and void if the vehicle identification number has been altered or cannot be read, if the odometer has been replaced or altered and the true mileage cannot be determined, if the vehicle has been declared a total loss or sold for salvage purposes, or if the vehicle has been used in any competitive event.
These warranties give you specific legal rights, and you may also have other rights, which vary, from state to state.
The duration of any implied warranties, including the implied warranty of merchantability and fitness for a particular use, is limited to the duration of the express warranties herein. Dinan hereby excludes incidental and consequential damages, including loss of time, inconvenience, or loss of the use of the vehicle, for any breach of any express or implied warranty, including the implied warranty of merchantability and fitness for a particular use, applicable to the product.
Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitations and exclusions may not apply to you.
Statement Revised 08/03/2018
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