AIRTEC Motorsport S55 Low Temp Radiator LTR / Twin-Pass Chargecooler Heat Exchanger – BMW M2 Competition, M3, M4 (F87 F80 F82 F83) – Front Mount Intercooler Water Radiator – Direct Fit Plug & Play Cooling Upgrade – Track Day / Stage 1-2 Ready

AIRTEC Motorsport Low-Temperature Radiator for BMW M2 Competition, M3 and M4 with S55

Unlock reliable, repeatable performance from your S55 with this front-mounted low-temp cooler designed to stabilise intake temps and fight heat soak on fast road and track. This upgraded water-to-air intercooler circuit radiator is a direct bolt-in solution for F87 M2 Competition, F80 M3 and F82/F83 M4 owners who want stronger, more consistent power delivery without cutting or trimming.

Engineered to maximise the space behind the bumper, the high-capacity twin pass core dramatically increases coolant volume and surface area for exceptional thermal control. It is ideal for standard cars as well as Stage 1 and Stage 2 setups where the factory cooling pack can become overwhelmed.

• Twin pass low-temp radiator optimised for the S55 water-to-air system
• Roughly 100 mm taller and 20 mm thicker than the factory unit
• Coolant volume jumps from 4.5 litres to 9.9 litres for extended thermal headroom
• About 40 percent more frontal area to shed heat quickly and keep IATs stable
• Direct replacement using factory mounting points and OE quick-connect fittings
• Supplied with a removable stone guard to protect the exposed core
• Durable black powder-coated finish for a discreet OEM+ look
• Comprehensive fitting guide included

Why this upgrade works
The S55 uses a water-to-air charge cooling system, so coolant temperature directly affects intake air temperature. Under spirited driving and on tuned cars, the standard low-temperature radiator can saturate, causing heat soak and power fade. This AIRTEC Motorsport unit increases coolant mass and dwell time in the core while improving airflow through a larger, efficient matrix, delivering consistent performance session after session.

Our experience
We have fitted this cooler for our customers and feedback has been excellent, with noticeably more stable inlet temps, reduced heat fade and stronger, repeatable performance on B-road blasts and track days. It is one of the most effective value cooling upgrades for M2 Competition, M3 and M4 owners.

Dimensions
OEM unit: 590 mm W x 308 mm H x 25 mm D, 4.5 L capacity, 1810 cm² frontal area
AIRTEC unit: 540 mm W x 410 mm H x 45 mm D, 9.9 L capacity, 2210 cm² frontal area

Vehicle compatibility
- BMW M2 Competition 3.0 S55 (F87)
- BMW M3 3.0 S55 (F80)
- BMW M4 3.0 S55 (F82, F83)

Installation
This is a true plug-and-play, bolt-in upgrade using the car’s factory brackets and hose connections, with no cutting required. Professional fitting available at MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Recommended pairing
Use with the original charge cooler for a big improvement, or combine with an uprated billet charge cooler for maximum temperature control on demanding road and track use.

Search-friendly highlights
BMW S55 low temperature radiator LTR, M2C cooling upgrade, F80 F82 F83 F87 intercooler water radiator, BMW M3 M4 auxiliary radiator for water-to-air system, S55 IAT reduction, track day cooling package, bolt-on front mount cooler, plug-and-play low temp cooling for remapped Stage 1 and Stage 2 S55 builds, UK fitting by MJ Modifications.