Rvng G series B46/B48/B58 Gen 2/3/Supra Upgraded Heat Exchanger
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Description
(CHECK CHASIS/MODEL COMPATIBILITY BELOW DESCRIPTION)
YES IT WORKS WITH B46,B48, AND B58
RVNG RaceWorks Why Upgrading the B58 Cooling System Is Essential?
The 2nd-generation B58 cooling layout has one major weakness: the factory liquid-to-air charge-air cooler becomes overwhelmed fast. Once the coolant in the charge-air system heat-soaks, intake air temperatures climb rapidly, and the ECU responds by pulling power. Push the car a little harder, and it eventually falls straight into limp mode.
This isn’t just something people talk about online — it’s a real limitation we’ve seen again and again. At competitive track events, especially in warm weather, modified B58 cars struggle to make more than a couple of laps without temperatures skyrocketing. Drivers are forced into cooldown laps, early pit stops, or resorting to spraying their heat exchangers with water just to get temps back under control.
For anyone increasing boost, upgrading the turbo, or pushing the car beyond stock power levels, the factory single-row heat exchanger simply isn’t designed to keep up. The OEM unit is only 25 mm thick and has limited coolant capacity, which means it saturates quickly and cannot shed heat efficiently during repeated pulls or extended track sessions.
RVNG’s high-efficiency heat exchanger solves this by stepping up to a massive 68 mm dual-row core — over 2.5× the thickness and dramatically more coolant volume and surface area. Our optimized core geometry increases heat transfer, reduces pressure drop, and delivers stable IATs even when the car is pushed hard.
To make installation seamless, we use a housing and tank profile that fits cleanly within the OEM location, while incorporating billet transmission cooler mounts and a full metal debris guard designed for both protection and airflow. Everything bolts in like stock, with no cutting, no modification, and no compatibility issues — a true drop-in upgrade engineered for the people who actually drive their cars the way they were meant to be driven.
BMW G-Series Platforms
2019–2022 BMW G20/G21 330i
• 2.0L Turbocharged 4-Cylinder
2019–2022 BMW G20/G21 330i xDrive
• 2.0L Turbocharged 4-Cylinder
2021–2025 BMW G22/G23 430i
• 2.0L Turbocharged 4-Cylinder
2022–2025 BMW G26 430i Gran Coupe
• 2.0L Turbocharged 4-Cylinder
2021–2025 BMW G22/G23 430i xDrive
• 2.0L Turbocharged 4-Cylinder
2022–2025 BMW G26 430i xDrive Gran Coupe
• 2.0L Turbocharged 4-Cylinder
BMW G42 — 2-Series
2023–2025 BMW G42 M240i
• 3.0L Turbocharged Inline-6
2022–2025 BMW G42 M240i xDrive
• 3.0L Turbocharged Inline-6
BMW G20 / G21 — 3-Series (B58)
2020–2025 BMW G20/G21 M340i
• 3.0L Turbocharged Inline-6
2020–2025 BMW G20/G21 M340i xDrive
• 3.0L Turbocharged Inline-6
BMW G22 / G23 / G26 — 4-Series (B58)
2021–2025 BMW G22/G23 M440i
• 3.0L Turbocharged Inline-6
2024–2025 BMW G26 M440i Gran Coupe
• 3.0L Turbocharged Inline-6
2021–2025 BMW G22/G23 M440i xDrive
• 3.0L Turbocharged Inline-6
2022–2025 BMW G26 M440i xDrive Gran Coupe
• 3.0L Turbocharged Inline-6
BMW G29 — Z4 Roadster
2019–2022 BMW G29 Z4 (2.0L)
• Turbocharged 4-Cylinder
2019–2022 BMW G29 Z4 (3.0L)
• Turbocharged Inline-6
Toyota GR Supra — A90 / A91
2024 GR Supra — 45th Anniversary Edition (3.0L)
• Turbocharged Inline-6
2023 GR Supra — A91-MT Edition (3.0L)
• Turbocharged Inline-6
2020–2025 GR Supra (3.0L Models)
• Turbocharged Inline-6
2023–2025 GR Supra Premium (3.0L)
• Turbocharged Inline-6
2024 GR Supra Premium — 45th Anniversary Edition (3.0L)
• Turbocharged Inline-6
2021–2022 GR Supra (2.0L)
• Turbocharged 4-Cylinder
Rvng G series B46/B48/B58 Gen 2/3/Supra Upgraded Heat Exchanger
FAQs
Answers to our most common questions below.
How Long Does Shipping Take?
All Rvng items ship within 1-3 days, if an item is out of stock the customer will be notified with the choice of a refund or an estimated timeline of delivery.
Do You Have Exhaust Parts For My Car?
We make a range of downpipes and exhaust systems for almost all BMW's. We choose to specialize in that market so we can always insure we are selling the best product possible for your Beamer!
Do You Offer In Person Pick-Up & Installs In Cali?
Yes, We are located in Garden Grove in Orange County, California. We invite any of our customers to pick-up in stock items and for any install or car related work.
Will Installing These Parts Void My Factory Warranty?
Aftermarket performance parts can affect your factory warranty on related components under the Magnuson-Moss Warranty Act — a dealer must prove the part caused the failure to deny a claim. We recommend speaking with your dealer or tuner. Our parts are precision-engineered to factory tolerances and we stand behind every product with our own Lifetime Warranty against defects and fitment issues.
Do These Parts Require a Tune?
Some parts — particularly downpipes, intake kits, and fuel system upgrades — will require or strongly benefit from an ECU tune to see full performance gains and to prevent check engine lights. Parts like heat exchangers, oil coolers, and hardware do not require a tune. We recommend reaching out to us or your local tuner before purchasing if you're unsure.
What Is Your Return Policy?
We accept returns within 30 days of delivery on unused, uninstalled, and undamaged items in original packaging. Custom or made-to-order parts are non-returnable. To start a return, contact us at rvngperformance@yahoo.com with your order number. Return shipping is the customer's responsibility unless the item arrived damaged or incorrect.
Are Your Catless Downpipes Street Legal?
Catless downpipes are intended for off-road and track use only. They are not emissions compliant and will trigger a check engine light without an appropriate tune or O2 spacers. If you need a street-legal option, contact us — we can discuss catted alternatives depending on your platform.
How Do I Know This Will Fit My Car?
Every RVNG product is developed and validated on the specific platforms listed. If your exact build year, model, or configuration isn't listed, contact us before ordering — we'll confirm fitment. We stand behind every part with our Fitment Guarantee: if it doesn't fit as described, we'll make it right.
If you have any questions, we're always welcome to help. We'll get back to you within 24 hours on weekdays.
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Shipping Information
All orders ship within 1-3 business days from our Garden Grove, CA facility.
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Customer Support
We're here to help. Reach out anytime and we'll get back to you within 24 hours on weekdays.
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FAQ's
Check out our FAQ section below for answers to our most common questions.
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Contact Us
Located in Garden Grove, CA. Stop by for pickup or install appointments — we'd love to meet you.