CTS Turbo CTS-HX-0018 Charge Cooler Heat Exchanger/Intercooler Radiator (LTR) Upgrade for BMW S58 G80 G81 G82 G83 G87 M2 M3 M4 (Comp/xDrive) – Low Temp Front Mount Direct-Fit 42mm Core

BMW G80 G81 G82 G83 G87 S58 charge cooler radiator upgrade – part no. CTS-HX-0018

Unlock stable power and consistent intake temps with this high-performance charge cooler radiator for the S58 straight-six. Designed as a direct replacement for the factory low-temperature radiator, it delivers rock-solid cooling for tuned and standard cars alike, helping to keep IATs in check on fast road drives, track days and drag events.

We have fitted this to customer cars and our own builds and the results are exactly what you want from a cooling upgrade: faster recovery between pulls, noticeably reduced heat soak and repeatable performance run after run. If you are planning a remap, running higher boost or chasing lap times, this is a must-have supporting mod.

Why upgrade your S58 cooling system

• Lower intake temperatures for cleaner combustion and more reliable power delivery
• Improved consistency on back-to-back pulls, ideal for Stage 1 and Stage 2 setups
• Better protection for your water-to-air intercooler circuit during spirited driving

Highlights

• Vehicle specific fit for G87 M2, G80 M3, G81 M3 Touring, G82 and G83 M4 including Competition and xDrive
• Two-pass, high density core that sheds heat efficiently to control charge temps
• Full aluminium construction, 100 percent TIG welded and pressure tested to 50 psi
• 2-row, 42 mm performance core with optimised fin density for maximum heat rejection
• Heat-dissipating satin black finish for stealth OEM look
• Includes upper and lower stone guards to help shield the core from road debris
• Supplied with hardware for an easy bolt-on, drop-in install with factory connectors

Real-world benefits

• Stronger, more repeatable performance on road and circuit
• Helps the S58 maintain timing, reducing the likelihood of power fade from heat soak
• Supports tuned cars, hybrid turbo builds and high ambient conditions

Specifications

• Core: 2-row, 42 mm performance matrix
• Construction: 100 percent TIG welded aluminium, pressure tested to 50 psi
• Finish: Heat-dissipating black coating
• Replaces OE number: 17-11-8-095-283 / 17118095283
• Approx. weight: 18 lbs
• Approx. dimensions: 30 x 20 x 5 in

Fitment

• 2021+ BMW G80 M3 including Competition and xDrive
• 2022+ BMW G81 M3 Touring including Competition and xDrive
• 2021+ BMW G82 M4 and 2021+ BMW G83 M4 Convertible including Competition and xDrive
• 2023+ BMW G87 M2 including Competition
• Compatible with 6-speed manual and ZF8 automatic

Note for ZF8 automatic models: the lower guard is not used. A small spacer is included to mount the transmission cooler on the left side. Reuse the factory screw to secure the transmission cooler.

Who is this ideal for

• Owners seeking a front mount charge cooler radiator upgrade for improved IAT control
• Track day, fast road and drag strip enthusiasts wanting consistent back-to-back runs
• Remapped S58 vehicles running higher load, ethanol blends or warm climate driving

Installation and support

Professional fitting available at MJ Modifications, Warwickshire. Email info@mjmodifications.co.uk to request a quote or to book installation. We are happy to advise on compatibility with other cooling parts and tuning packages.

Part numbers

• Manufacturer reference: CTS-HX-0018
• OE cross-reference: 17-11-8-095-283 / 17118095283

What customers say

Our customers report cooler charge temps on hard use, quicker recovery after repeated pulls and consistent performance on both road and track. It is a confidence-inspiring cooling upgrade that complements software tunes and supporting mods.

Keywords customers search for

BMW G80 M3 radiator upgrade, G82 M4 charge cooler, G87 M2 low temperature radiator, S58 intercooler radiator, front mount heat exchanger, auxiliary radiator for intercooler, IAT reduction upgrade, track cooling kit, drop-in cooling solution for S58, BMW M3 Competition cooling, BMW M4 Competition cooling.

Manufactured by: CTS Turbo