Dinan High Performance Heat Exchanger, core with logo, angled view
Dinan High Performance Heat Exchanger, core with logo, front view
Dinan High Performance Heat Exchanger, core beside stock exchanger
Dinan High Performance Heat Exchanger, core with logo, side view
Dinan High Performance Heat Exchanger, core beside stock exchanger, side view
Dinan High Performance Heat Exchanger, core with hardware laid out
Dinan High Performance Heat Exchanger, core with logo, angled view
Dinan High Performance Heat Exchanger, core with logo, front view
Dinan High Performance Heat Exchanger, core beside stock exchanger
Dinan High Performance Heat Exchanger, core with logo, side view
Dinan High Performance Heat Exchanger, core beside stock exchanger, side view
Dinan High Performance Heat Exchanger, core with hardware laid out

Dinan High Performance Heat Exchanger for BMW M2 / M3 / M4 2015-2021

Dinan SKU: DNND780-0001A
Price
11% OFF
Only 6 Left in Stock – Order Soon
Make sure this fits your vehicle Select your vehicle to confirm fitment before you order. Check
Shipping calculated at checkout.

Details

BrandDinan
SKUDNND780-0001A
GTIN / UPC813725023380
Manufacturer Part NumberD780-0001A

Product Information

A larger replacement for the front heat exchanger that cools the water feeding the engine's water-to-air intercooler. Its core is 40 mm thick against 24 mm stock, with 60% more volume and 19% more face area, sized so the main radiator behind it still gets enough air. Water to the intercooler runs about 9 degrees cooler on average, intake air about 6 degrees cooler, and the result is a consistent 10 hp and 20 lb-ft on the stock engine tune. Where the factory system heat soaks after about three hard pulls, the car no longer heat soaks after seven.

Specifications

Type High performance heat exchanger (intercooler water circuit)
Core Size 40 mm thick (stock 24 mm); 60% more volume and 19% more face area than stock
Engine S55
Warranty Dinan Limited Warranty: remainder of the BMW new vehicle warranty (4 yr/50,000 mi, US/Canada-spec cars), or 2 years unlimited mileage once out of factory warranty

This part fits:

Year Make Model Submodel
2019-2021 BMW M2 Competition
2015-2018 BMW M3 Base
2015-2020 BMW M4 Base, CS, GTS

Why replace the heat exchanger rather than the intercooler?

  • Testing of the intercooler, the heat exchanger and the secondary cooler showed that a larger heat exchanger gave the most cooling gain for the money on this engine.

Is it built for track use?

  • Yes. It is track tested for consistent performance under hard use and is rubber mounted to isolate vibration.

Shipping

  • In stock orders typically ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • 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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