Untd. Performance Side Radiator (Pair) – BMW M3 M4 S55 F80 F82

Description

Keep your BMW S55-powered M3 or M4 running cooler under pressure with the Untd. Performance Side Radiator upgrade. Designed as a direct-fit, high-efficiency replacement for the factory side-mounted radiators, this pair delivers improved heat dissipation, consistent cooling, and greater thermal stability during spirited driving or track use.

Key Features:

Upgraded Cooling Efficiency
With a larger surface area and high-density core design, these radiators significantly improve heat exchange—keeping coolant temperatures lower even under sustained high-load conditions.

Track-Tested, Street-Proven
Whether you’re pushing hard on the circuit or enjoying spirited backroad driving, the Untd. Performance Side Radiators provide reliable thermal performance, preventing heat soak and maintaining engine efficiency throughout your session.

Durable All-Aluminum Construction
Crafted from TIG-welded aluminum, these radiators are built to withstand the heat, pressure, and vibration associated with high-performance driving. A corrosion-resistant finish ensures long-term durability and cooling efficiency.

Direct OEM Replacement
Designed to replace the factory side radiators without modification, they integrate seamlessly into the stock cooling system. Compatible with factory fan shrouds, hoses, and mounts for a hassle-free install.

Engineered for S55 Performance
The twin-turbocharged S55 engine generates substantial heat—especially when tuned. These side radiators ensure your cooling system is up to the task, complementing upgraded intercoolers or main radiators for a full performance cooling package.

Compatibility:

• BMW M3 F80 (2015–2018)

• BMW M4 F82/F83 (2015–2020)

• Engine: S55 Twin-Turbo 3.0L I6

For serious drivers and enthusiasts looking to maximize reliability and cooling performance, the Untd. Performance Side Radiator Pair is the perfect addition to your F8X M build—on track or on the street.