Next Level Performance
August 6, 2026 • 9 min read
A GR Supra B58 intercooler upgrade — more precisely, a charge-air cooler and heat-exchanger upgrade — is the single most effective way to stop heat soak from robbing power on the 2020–2026 Toyota GR Supra (A90). The BMW-sourced B58 3.0L turbocharged inline-six makes 335 horsepower and 365 lb-ft in 2020 cars and 382 horsepower and 368 lb-ft from 2021 onward, but its factory air-to-water charge cooler heat-soaks within a few hard pulls, raising intake air temperatures (IATs) until the ECU pulls ignition timing to protect the engine. Upgrade the charge-air cooler manifold and the front-mount heat exchanger and your Supra makes the same power on lap five as it does on lap one. At NLP Performance in Tampa, FL, these are the parts we reach for first on any tuned A90.
Our Verdict
The CSF Gen-2 B58 Race-X Charge-Air Cooler Manifold is the ultimate GR Supra charge-cooling upgrade.
Its motorsport-grade bar/plate core runs 15 rows of water cooling versus the OEM unit's 6 — a 25% larger core than CSF's Super Manifold — plus a KIYLEX thermal-rejection spacer that drops intake-manifold temperatures up to 15%. For a tuned street Supra on a budget, start with a CSF or Mishimoto heat exchanger ($699–$943.95) on the factory manifold and add the Race-X when you go big-turbo or E85.
Shop Our Top Pick →Why the GR Supra B58 Needs a Charge-Air Cooler Upgrade
The GR Supra's B58 uses a compact air-to-water charge-air cooler mounted inside the intake manifold, and its small OEM core heat-soaks quickly under repeated wide-open-throttle pulls. One clean pull on a cool day is no problem, but back-to-back runs, drag passes, or a few track laps saturate the coolant. Intake air temperatures climb well above ambient, and the ECU responds exactly as designed — it pulls ignition timing and trims boost to prevent detonation. You feel it as the car going flat on the second and third pull.
Toyota already knew heat was the B58's limit. For 2021 they fitted a dual-branch six-port exhaust manifold and dropped compression from 11:1 to 10.2:1 so the engine could run more boost and manage heat, lifting output from 335 horsepower to 382 horsepower and cutting the 0–60 mph time to 3.9 seconds. But the charge-cooling hardware carried over unchanged, so it remains the ceiling the moment you add a tune, a larger turbo, or E85. Two components raise that ceiling: a larger charge-air cooler manifold (the intercooler core itself) and a bigger front-mount heat exchanger (the low-temperature radiator that rejects the heat the core absorbs).
GR Supra B58 Intercooler Upgrades Compared
Here are the six charge-cooling upgrades we stock for the A90 Supra and B58 platform, from full charge-air cooler manifolds to bolt-in heat exchangers. Rows are ordered by price; every part is in stock and ships from NLP Performance.
| Kit | Type | Core / Cooling | Fitment | Price |
|---|---|---|---|---|
| CSF Gen-2 B58 Race-X ManifoldTop Pick | Charge-Air Cooler | Bar/plate, 15-row core | A90/A91 Supra + BMW B58 | $5,995 |
| CSF B58 Super Manifold (Gen-2) | Charge-Air Cooler | Bar/plate, 12-row core | A90/A91 Supra + BMW B58 | $4,599 |
| Wagner Tuning EVO1 Manifold | Manifold + Intercooler | Billet, integrated core | A90/A91 Supra (B58.2T) | $2,490 |
| AMS Performance Heat Exchanger | Heat Exchanger | Enlarged front-mount core | 2020+ A90 Supra | $959.95 |
| Mishimoto Performance Heat Exchanger | Heat Exchanger | Larger core, direct-fit | 2020+ Supra / Z4 | $749.95 |
| CSF A90 Heat Exchanger (8154) | Heat Exchanger | High-density direct-fit | 2020+ A90 Supra | $699 |
The Best GR Supra Charge-Air Cooler Manifolds
The charge-air cooler manifold is the heart of any GR Supra intercooler upgrade — it replaces the factory intake manifold's integrated cooler with a far larger bar/plate core. This is the upgrade for big-power, E85, and forced-induction builds where the factory core simply can't shed enough heat.
CSF Race-X Key Specifications
What We Like
- + Largest core available: 15 rows of water cooling vs the OEM cooler's 6
- + KIYLEX thermal spacer cuts intake-manifold temps up to 15%
- + Dual/single-pass with an ice-box port for drag and time-attack builds
- + Race-proven on the fastest B58 drag cars; NPT sensor ports built in
Things to Consider
- – Premium price at $5,995 — overkill for a stock-turbo daily driver
- – Best paired with an upgraded heat exchanger to realize its full potential
Developed with VF Engineering and Custom Plenum Creations, the Race-X (CSF #8400) runs a bar/plate core 25% larger than CSF's Super Manifold, with an integrated air divider in the inlet tank for even flow distribution, slotted mounting holes for easier installation, and multiple NPT sensor ports. Its front port is optimized for ice-box setups, making it the go-to for record-chasing B58 drag cars. It sells for $5,995 in Thermal Black or $5,599 in raw billet aluminum.
The Race-X bar/plate core runs 15 rows of water cooling versus the OEM cooler's 6.
The CSF Super Manifold (#8200) is the sweet spot for the vast majority of tuned street and weekend-track Supras. It doubles the OEM cooler's water rows from 6 to 12 in a direct-fit package that keeps IATs in check on E30 and Stage 2 builds, for $1,396 less than the Race-X. It is offered in black ($4,599) or raw billet ($4,299).
The CSF Super Manifold doubles the factory water-cooling rows from 6 to 12.
Wagner Tuning's EVO1 takes a different route: a fully billet-machined intake manifold with an integrated competition intercooler, engineered for the revised B58.2T Supra. At $2,490 it is the most affordable way into a manifold-level charge-cooling upgrade and a favorite of European tuners.
The Best GR Supra Heat Exchangers
A heat exchanger is the front-mounted radiator for the B58's low-temperature charge-cooling loop; a larger unit holds more coolant and rejects more heat, keeping IATs consistent pull after pull. Because it bolts in without touching the intake manifold, it is the smartest first upgrade for a tuned bolt-on Supra — and a must-have companion to any charge-air cooler manifold.
Mishimoto's direct-fit heat exchanger ($749.95) increases core volume and coolant capacity over stock and reuses factory mounting points, so it is a true bolt-in for the 2020+ Supra and 2019+ Z4. It is the value pick for tuned daily drivers that see the occasional track day.
The Mishimoto heat exchanger adds core volume and coolant capacity while reusing OEM mounts.
AMS Performance's enlarged front-mount heat exchanger ($943.95) is the choice for hard-run track and drag Supras.
CSF's #8154 heat exchanger ($699) is the most affordable way to attack heat soak and pairs perfectly with a CSF charge-air cooler manifold for a matched cooling package. Stepping up, the AMS Performance heat exchanger ($943.95) uses an even larger core for dedicated track and drag cars that need maximum thermal headroom.
Charge-Air Cooler or Heat Exchanger: Which Should You Upgrade First?
For a bolt-on, tuned street Supra, upgrade the heat exchanger first — it is the most cost-effective way to cut heat soak ($699–$943.95) and it works with the factory charge-air cooler manifold. It solves the most common complaint (the car going flat on the second pull) for the least money and the easiest install.
Move up to a full charge-air cooler manifold once you outgrow the factory core — that means a bigger turbo, an E85 or flex-fuel tune, or serious track and drag use. The CSF Super Manifold covers most of those builds; the Race-X is for maximum-effort cars chasing records, especially with its ice-box front port. Whatever manifold you choose, pair it with an upgraded heat exchanger: the two work as a system, and a larger core is only as good as the radiator rejecting its heat.
How Much Power Do GR Supra Cooling Upgrades Add?
Cooling upgrades don't add peak horsepower on a single cold dyno pull — they preserve it, preventing the double-digit horsepower a heat-soaked B58 gives back to timing pull during back-to-back runs, track sessions, and drag passes. The real-world win is repeatability: stable, near-ambient IATs mean the ECU holds full timing and boost on every run instead of only the first.
That consistency is exactly why charge-cooling is considered mandatory on tuned B58s. On an E85 or upgraded-turbo A90 making well beyond the stock 382 horsepower, the factory cooler becomes the hard limit; a CSF or Wagner manifold plus a larger heat exchanger is what lets those builds hold their numbers lap after lap and pass after pass. In our Tampa shop, it is the difference between a Supra that dyno-queens one good pull and one that runs the same trap speed all day.
Frequently Asked Questions
What does a GR Supra intercooler upgrade do?
A GR Supra intercooler (charge-air cooler) upgrade replaces the small factory air-to-water cooler with a much larger bar/plate core so intake air temperatures stay low and consistent during repeated hard pulls. On the B58, the stock cooler heat-soaks in a few wide-open runs and the ECU pulls timing to prevent knock; a bigger charge-air cooler and heat exchanger keep IATs stable so the engine holds its 335–382 horsepower run after run.
Does the GR Supra have an intercooler or a charge-air cooler?
The 2020–2026 GR Supra uses an air-to-water charge-air cooler integrated into the intake manifold, not a traditional front-mount air-to-air intercooler. Coolant circulates through a compact core in the manifold and rejects heat through a separate front-mounted heat exchanger. Enthusiasts still call it an 'intercooler,' but upgrading it means upgrading the charge-air cooler manifold and the heat exchanger.
What is the best charge-air cooler for the GR Supra B58?
The CSF Gen-2 B58 Race-X Charge-Air Cooler Manifold ($5,995) is the best charge-air cooler for the GR Supra B58. Its bar/plate core uses 15 rows of water cooling versus the Super Manifold's 12 and the OEM cooler's 6, it is 25% larger than CSF's Super Manifold, and its KIYLEX spacer lowers manifold temperatures up to 15%. For most tuned street cars, the CSF Super Manifold ($4,599) delivers the majority of the benefit for less.
Do I need both a heat exchanger and a charge-air cooler?
Not necessarily. A larger heat exchanger ($699–$943.95) is the most cost-effective first step and works with the factory charge-air cooler manifold, making it ideal for tuned bolt-on cars. Step up to a full charge-air cooler manifold like the CSF Super Manifold or Race-X when you add a bigger turbo, run E85, or track the car hard, and pair it with an upgraded heat exchanger for the best results.
Will these GR Supra cooling upgrades fit a BMW B58?
Yes. The CSF charge-air cooler manifolds fit both the A90/A91 Toyota GR Supra and BMW B58 G-series cars including the M340i, 340i and Z4 M40i, because they share the same B58 engine and intake manifold. The Mishimoto heat exchanger also covers the 2019+ BMW Z4 3.0L. Always confirm the exact year and trim against the product fitment before ordering.
Does a charge-air cooler upgrade require a tune?
No. A charge-air cooler or heat exchanger upgrade is safe on a completely stock tune and simply keeps intake temperatures lower. You unlock the most benefit with a supporting tune, however, because stable IATs let the ECU hold more ignition timing and boost — which is why these cooling parts are considered mandatory on E85 and upgraded-turbo B58 builds.
Beat Heat Soak in Your GR Supra
Shop CSF, Wagner, AMS and Mishimoto charge cooling for the B58 — plus thousands more performance parts at NLP Performance.
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