CTS Heat Exchanger, BMW B48 / B58 (230i, M240i, M140i, M340i, 440i..)

BMW B58 Intercooler Heat Exchanger – CTS Turbo

More power, less heat, no BS.

Sick of your B58 heat-soaking like a sauna? The stock front-mounted heat exchanger is too small, too weak, and totally out of its league when it comes to handling the heat of a properly tuned B48/B58 engine. That’s where the CTS Turbo Front Mount Heat Exchanger steps in. Bigger, better, and designed to drop right into place, this high-flow, double-pass aluminum core keeps your engine cool while you push it hard.

And because air pockets are the enemy, we’ve included an easy-access vent for bleeding your cooling system like a pro. No more bubbles messing with your temps. Just bolt it in, purge the air, and send it.

Stock cooling is weak. Be smart, upgrade.

Features & Why You Need This

• Bigger & better cooling – Oversized double-pass aluminum core for maximum efficiency.
• Factory fit, no headaches – CNC-machined mounting points and smooth hose connections.
• Drop-in & drive – Installs in the stock location without modification.
• No more air pockets – Handy bleeder valve to purge trapped air.
• Durability you can trust – Hand-welded, pressure-tested, and built to last.
• Includes mounting hardware – Even brackets for relocating the transmission cooler.

Fitment – What’s It For?

• BMW F-Series B48/B58 (Check before ordering, don’t guess!)
• F20/F21/F22/F23 – M140i / 230i / M240i
• F30/F31/F34 – 330i / 340i
• F32/F33/F36 – 430i / 440i

Not compatible with A90/A91 Supra or G-series BMWs.

Installation & Instructions

Start your install properly—read the instructions first! Be a man, don’t skip the manual.
Click for Installation Guide

Why Upgrade?

The stock heat exchanger might be fine for casual driving, but if you’re increasing boost or pushing your car harder, proper cooling is essential. Whether you’re daily driving, hitting the track, or just flexing on stock B58s, the CTS Turbo Heat Exchanger keeps things cool, reliable, and ready to perform.

Don’t wait for heat soak to ruin your fun. Upgrade now.