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CSF Transmission Oil Cooler w/Rock Guard BMW G87 M2 / G80 M3 / G82 M4

SKU: CSF8221
Sale price
$599.00
Regular price
$629.00
You save
5%
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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

Keep ZF8 transmission temperatures under control during demanding street, drag, and track use with the CSF High-Performance Automatic Transmission Cooler. Developed specifically for BMW's G8X M cars equipped with the ZF 8-speed automatic transmission, CSF substantially increases cooling capacity while maintaining a direct, modification-free installation.

Compared with the factory single-core design, the CSF cooler uses a unique dual-core, dual-pass configuration with a massive 194% increase in core and tank volume. Transmission-fluid capacity increases approximately 94%, from 875 ml with the OEM cooler to 1,700 ml with the CSF unit. Two stacked 22mm cores provide a combined 44mm core thickness compared with the factory 28mm unit, dramatically increasing available heat-transfer surface area.

CSF incorporates its high-pressure 9-channel microtube technology to optimize oil flow and maximize surface-area contact for improved heat dissipation. The system retains factory-style quick-connect fittings and OEM upper and lower rubber seals, allowing it to install in the factory location without permanent modifications.

A replaceable rock guard provides additional protection against road and track debris, particularly valuable on cars equipped with open-face aftermarket grilles. For tuned G8X M cars, track builds, or any application placing increased thermal load on the ZF8, the CSF transmission cooler provides significantly more cooling capacity while retaining OEM-style fitment.

Fitment Notes

  • Fits 2023+ BMW M2 (G87) with ZF8 automatic transmission

  • Fits 2021+ BMW M3 (G80) with ZF8 automatic transmission

  • Fits BMW M3 Touring (G81) with ZF8 automatic transmission

  • Fits BMW M3 Competition (G80/G81) with ZF8 automatic transmission

  • Fits BMW M3 CS (G80) with ZF8 automatic transmission

  • Fits 2021+ BMW M4 (G82/G83) with ZF8 automatic transmission

  • Fits BMW M4 Competition (G82/G83) with ZF8 automatic transmission

  • Fits BMW M4 CSL (G82)

  • Fits BMW M4 CS (G82)

  • ZF8 automatic transmission applications only

  • Not designed for 6-speed manual transmission vehicles

  • Direct drop-in installation with no permanent vehicle modifications required

  • Compatible with the factory cooling system

  • Compatible with the CSF #8215 High-Performance Heat Exchanger

Included

  • CSF #8221 high-performance transmission oil cooler

  • Integrated dual-core cooling assembly

  • OEM-style quick-connect inlet and outlet connections

  • Replaceable protective rock guard

  • Required installation components

Product Specs

  • CSF Part Number: 8221

  • Product Type: Automatic Transmission Oil Cooler

  • Transmission: ZF 8-Speed Automatic

  • Core Design: Dual Core

  • Flow Design: Dual Pass

  • CSF Core & Tank Dimensions: 555mm x 191mm x 44mm

  • OEM Core & Tank Dimensions: 553mm x 155mm x 28mm

  • Core & Tank Volume Increase: 194%

  • CSF Fluid Capacity: 1,700 ml

  • OEM Fluid Capacity: 875 ml

  • Fluid Capacity Increase: Approximately 94%

  • CSF Core Thickness: 44mm

  • OEM Core Thickness: 28mm

  • Rear CSF Cooler: 16 Rows

  • Front CSF Cooler: Additional 16 Rows

  • OEM Cooler: 14 Rows

  • Cooling Technology: High-Pressure 9-Channel Microtube

  • Connections: OEM-Style Quick Connect

  • Installation: Direct Drop-In

  • Warranty: 2-Year Limited Warranty

  • BMW OEM Reference Number: 17-11-8-095-284 / 17118095284

Product Features

  • 194% greater core and tank volume provides substantially more cooling capacity than the factory ZF8 transmission cooler

  • Increases transmission-fluid capacity by approximately 94%, from 875 ml to 1,700 ml, providing additional thermal capacity during sustained high-load driving

  • Unique dual-core, dual-pass design replaces the OEM single-core, single-pass configuration for improved heat dissipation

  • CSF's 9-channel microtube technology maximizes fluid-to-surface-area contact to efficiently transfer heat away from the transmission oil

  • Direct drop-in installation with OEM-style quick-connect fittings requires no permanent vehicle modifications

  • Integrated replaceable rock guard protects the exposed cooler core against road and track debris, making the system particularly well suited to aggressively driven and track-prepared G8X M cars