A drop-in replacement for the top mounted water-cooled intercooler on the BMW M2 Competition, M3 and M4 (S55). The standard tube and fin core has clamped plastic end tanks that can crack and leak coolant or boost. The do88 unit has a bar and plate core with TIG-welded cast aluminium end tanks.
Features
- Core volume 5657 cm3 against 3052 cm3 standard, 85 percent larger
- Airflow of 298 CFM against 256 CFM at 0.025 bar (0.36 psi) pressure drop, 16 percent higher
- Post-intercooler air temperature of 39 deg C against 48 deg C, 9 deg C lower, measured at 240 km/h during full throttle acceleration
- Peak power gain of 13 hp, mid-range gain up to 25 hp and torque gain up to 52 Nm, measured with a BootMod3 Stage 1 tune
- Dual-pass coolant flow instead of the standard single pass
- High density offset cooling fins on both the air and water side
- Fits without modification
Specifications
- Part number: ICM-320
- Construction: bar and plate core, TIG-welded cast aluminium end tanks, no internal air guides
- OE reference: 17517846235
Fitment
- BMW M2 Competition (F87): 2019-2020
- BMW M3 and M3 Competition (F80): 2015-2018
- BMW M4, M4 Competition, M4 GTS and M4 CS (F82, F83): 2015-2020
Before you order
Contact us with your registration or VIN and we will confirm fitment before you order.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.




