The fifth-generation Toyota GR Supra is more than just a revival of a legendary nameplate; it's a showcase of engineering excellence resulting from a collaboration between Toyota and BMW. Here's what makes the GR Supra a standout in the sports car arena:
🔧 The Heart: BMW’s B58 Inline-Six Engine
At the core of the GR Supra lies the BMW-sourced B58 3.0-liter turbocharged inline-six engine. This powerplant delivers a robust 382 horsepower and 368 lb-ft of torque, propelling the Supra from 0 to 60 mph in approximately 4.1 seconds.
Key features of the B58 engine include:
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Closed-Deck Design: Enhances block rigidity, allowing for higher boost pressures and improved durability.
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Integrated Exhaust Manifold: Reduces turbo lag and improves thermal efficiency.
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Twin-Scroll Turbocharger: Provides a broad torque curve and responsive acceleration.
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Valvetronic and VANOS Systems: BMW's variable valve lift and timing technologies optimize performance and efficiency.
Toyota didn't just adopt the B58 engine; they rigorously tested and validated it to meet their stringent reliability standards, ensuring it aligns with the Supra's performance heritage.
🏎️ Chassis and Suspension: Precision Handling
The GR Supra's chassis was co-developed with BMW, sharing its platform with the Z4. However, Toyota fine-tuned the Supra's dynamics to deliver a more engaging driving experience:
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Short Wheelbase and Wide Track: Contribute to agile handling and stability.
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Double-Joint Spring Strut Front Suspension: Offers precise steering response.
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Five-Link Rear Suspension: Enhances ride comfort and cornering grip.
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Adaptive Variable Suspension (AVS): Adjusts damping force in real-time based on driving conditions.
These elements combine to provide a balanced and responsive ride, making the Supra equally adept on twisty backroads and racetracks.
🔧 Top 5 Mods to Elevate Your GR Supra
Enhancing your GR Supra's performance and aesthetics can be achieved through carefully selected modifications. Here are the top five upgrades available through REVRUNNERS:
1. Cold Air Intake Systems
Let’s be real — the stock intake on the GR Supra does the job, but it’s not exactly inspiring. One of the first things we look to improve is airflow, and a proper cold air intake can transform how the car feels and sounds.
Upgrading to a high-performance cold air intake lets the B58 breathe easier, improving throttle response and giving you a sharper, more aggressive induction note — especially as you climb through the revs. You're not just hearing more turbo spool; you're unlocking performance that was bottled up from the factory.
A favourite among Supra owners is the HKS Cold Air Intake Full Kit. HKS engineered this system with a massive carbon canister for cool air delivery and reduced heat soak. The fit and finish is pure JDM quality — clean lines, big flow, and induction sound that makes you want to drop windows every tunnel run.
Another top-tier option is the aFe Takeda Stage 2 Cold Air Intake System. Built with dual intake tubes and a free-flowing Pro DRY S filter, the Takeda system focuses on performance gains without needing an ECU tune. The heat shield design keeps intake temps low — ideal for both street cruising and track heat cycles.
Both intakes deliver noticeable gains in response and sound. Whether you lean toward the carbon JDM flare of HKS or the aggressive twin-tube design of aFe, either system will unlock the kind of induction experience the Supra should’ve had from factory.
2. Cat-Back Exhaust Systems
Let’s be honest — if you're driving a GR Supra and it still sounds stock, you're missing half the experience. One of the most satisfying and transformational mods is a proper cat-back exhaust system. It’s not just about volume; it’s about character, flow, and turning that B58 note into something that actually makes you want to redline it through every gear.
Upgrading to a performance exhaust reduces backpressure and improves flow efficiency, helping the turbo spool quicker and making the whole powerband feel more responsive. Plus, you get that deep, aggressive tone the Supra deserves — whether you're doing a cold start in the driveway or hammering it through a mountain pass.
Here are three standout options:
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MBRP 3" Cat-Back Exhaust with Dual Carbon Fiber Tips (T304)
This system is all about performance with polish. Constructed from full T304 stainless steel, it offers a clean, deep tone without drone. The carbon fiber tips bring an aggressive, motorsport aesthetic that complements the Supra’s body lines perfectly.
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Injen SS Cat-Back Exhaust with Carbon Fiber Tips
A bit more raw and race-inspired, the Injen system ramps up the volume and delivers an aggressive bark when you get on it. It’s a great option if you want something that makes its presence known without going full straight pipe.
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AWE Touring Edition Resonated Cat-Back Exhaust – Diamond Black Tips
AWE’s Touring system brings balance — aggressive when you want it, quiet when you don’t. The resonated setup tones out the harshness while still providing that deep growl under load. The black tips give it a premium, stealthy finish.
Each of these options transforms how the Supra sounds and responds, and the choice comes down to how wild you want to go — subtle street presence or full-blown head-turner. Either way, once you go aftermarket, there’s no going back.
3. ECU Tuning Solutions
When you're ready to unlock the hidden potential of your GR Supra's B58 engine, tuning the ECU is the gateway to serious performance gains. While traditional ECU remapping offers substantial benefits, there's a more accessible and warranty-friendly option that delivers impressive results.
Enter the aFe Scorcher GT Bluetooth Power Module — a plug-and-play solution that enhances performance without permanently altering your vehicle's ECU. This module intercepts and modifies sensor signals, effectively increasing turbo boost and optimizing fuel delivery for improved horsepower and torque.
Key features include:
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Quick Installation: Approximately 30 minutes with no cutting or splicing required.
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In-Cabin Control: Adjust power settings on-the-fly using the included LED switch or via Bluetooth through your smartphone.
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Four Power Modes:
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Stock (Green): Factory settings.
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Sport (Yellow): Enhanced throttle response.
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Sport+ (Orange): Increased boost for spirited driving.
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Race (Red): Maximum performance gains.
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No ECU Footprint: Leaves no trace on the factory ECU, maintaining warranty compliance.
With gains of up to +51 horsepower and +94 lb-ft of torque, the Scorcher GT module transforms your Supra's driving dynamics. Whether you're navigating city streets or pushing the limits on the track, this module offers a seamless blend of convenience and performance.
If you are trying to get the most out of your respective mods, full custom tunes are the route for you!
4. Intake Manifold Upgrades
If you're stacking power mods or planning to run your GR Supra hard on track, the stock intake manifold and integrated intercooler combo just doesn’t cut it. Heat soak is the enemy — and when you start pushing more boost, climbing intake temps can rob power and consistency. That’s where an upgraded intake manifold comes in: better cooling, more volume, and the airflow headroom to support big power builds.
Swapping to a performance intake manifold not only helps reduce charge temps but also preps the car for things like port injection, water-meth setups, or future forced induction upgrades. It’s the type of mod that won’t show off with sound or flash, but the performance gains? Absolutely noticeable.
Here’s a heavy-hitter worth your attention:
Wagner Tuning EVO1 Intake Manifold w/ Integrated Intercooler – GR Supra A90/A91
Designed for the B58 platform, this unit ditches the compact OEM design for a high-flow, high-efficiency layout with a massive 128% increase in external core volume. You’re looking at up to 20°C lower intake temps under load — that means consistent power even after repeated pulls or full track sessions.
The CNC-machined end tanks keep airflow clean and balanced across all cylinders, and the intercooler section reduces backpressure by up to 35%, making life easier for your turbo. It’s also ready for auxiliary fuelling options right out of the box, making it future-proof if you're planning on chasing serious numbers down the line.
Being a mechanical engineer, there are few products that get the fluid dynamics calculations flowing in one's mind quite like a well-designed charge cooler. The airflow paths, thermal efficiency, pressure drop — it’s engineering poetry when it’s done right. And Wagner's EVO1 nails it.
Bottom line — if you're serious about reliable, repeatable performance, especially in high-heat scenarios, an upgraded intake manifold like this is an absolute power move.
5. Suspension Upgrades
Look — the GR Supra is already pretty capable out of the box. But if you’re the type that’s chasing perfection in every apex, or if you just want to tighten things up for backroad blasts and spirited daily drives, upgrading the suspension is one of the smartest moves you can make.
The stock setup does a decent job balancing comfort and performance, but there’s a lot of untapped potential waiting to be unlocked with a proper suspension upgrade — better turn-in, reduced body roll, sharper feedback, and most importantly, that locked-in planted feel that gives you confidence behind the wheel.
Two killer options that take different approaches, depending on how far you want to go:
Eibach Pro-Plus Kit – 2020+ GR Supra A90
This is the move if you’re after OEM+ balance. The Pro-Plus Kit combines Eibach’s progressive-rate lowering springs with their anti-roll sway bars — a double punch of lowered stance and flatter cornering. It subtly drops ride height to clean up the wheel gap and improve center of gravity, while the stiffer bars reduce chassis flex and understeer. The result? A Supra that rotates better, stays flatter in transitions, and feels more alive on twisty roads.
aFe Control Stage 1 Suspension Package – GR Supra A90 I6 3.0L
This one’s for the drivers who want to get more aggressive with their setup. aFe’s Stage 1 package focuses on precise handling through upgraded sway bars and end links. It’s built for enthusiasts who want to push the limits without diving into full coilover territory. The adjustable solid sway bars give you tuning flexibility, and the billet aluminum end links make sure every bit of steering input gets transferred directly through the chassis.
Whether you're hunting lap times at Wakefield or carving up the National Park Run, either of these kits will make the Supra feel more dialed, more predictable, and just more yours. It's about tightening the connection between you, the chassis, and the road beneath it.
Final Thoughts
The Toyota GR Supra is a testament to modern automotive engineering, blending power, precision, and heritage. By understanding its foundational strengths and thoughtfully selecting modifications, enthusiasts can tailor the Supra to their driving preferences, whether for daily enjoyment or track-day dominance.
If you're interested in exploring specific products or need further guidance on enhancing your GR Supra, feel free to ask!
