Mishimoto BMW S58 Auxiliary Coolers for M2, M3, M4
Upgrade the cooling performance of your BMW S58 engine with Mishimoto Performance Auxiliary Radiators. Perfect for fast road and track, these side radiators are a direct fit for the 2021+ BMW G8X platform including M2, M3 and M4. Crafted for durability and consistent temperature control, this must‑have cooling upgrade helps combat heat soak and keeps coolant temperatures stable when you push your BMW hard.
Why choose Mishimoto Auxiliary Radiators for your S58
- Direct fit for the 2021+ BMW G8X M3, M4, M2 S58 platform
- 25 percent increase in core volume for improved heat transfer and cooling capacity
- Full aluminium construction with TIG‑welded end tanks for maximum durability
- Strutted tubes for extra reinforcement against vibration and impacts
- Increased fluid capacity for better heat dissipation on road and track
- Sold as a matched pair for both auxiliary cooling positions
We run these Mishimoto auxiliary coolers on our own S58 builds and have fitted them for customers who drive hard on track and spirited B‑roads. Feedback is consistently positive, with rock‑solid temperatures and confidence‑inspiring performance. If you are tuning your S58 or simply want reliable cooling for repeated wide‑open throttle, this is the auxiliary radiator upgrade you need.
Built for performance and reliability
The enlarged core volume and increased coolant capacity enhance heat rejection, helping your S58 maintain stable operating temps during repeated pulls, track sessions and hot weather. TIG‑welded aluminium end tanks and strutted tubes add strength where it matters, while optional steel stone guards are available separately for extra protection.
What you get
- 2 x Mishimoto Performance Auxiliary Radiators for BMW S58
- Mishimoto Lifetime Warranty for peace of mind
- Optional steel stone guards available separately
Professional fitting
Professional installation recommended. Nforcd offers fitting at our Warwickshire workshop. Request a quote at Sales@nforcd.com.
Compatibility
2021+ BMW G8X platform with S58 engine: M3, M4, M2.
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