We researched and compared the top twin turbo kits on the market, evaluating manufacturer specifications, industry standards, and aggregated owner feedback. Our goal is to help you choose a kit that delivers reliable power gains without compromising safety or daily drivability. Below are our findings based on extensive research and real-world owner experiences.
| Photo | Product | Score | Buy |
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Hellion Twin Turbo Kit 2015-2023 Mustang GT Best Overall Compatible with 2015-2023 Mustang GT, intercooled, ball-bearing turbos |
9.2 | 🛒 Check Price |
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On3 Performance Twin Turbo Kit 2011-2020 Mustang GT Best Value Fits 2011-2020 Mustang GT, T4 flanges, 62mm turbos |
8.8 | 🛒 Check Price |
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Squires Turbo Systems STS Twin Turbo Kit Camaro SS Best for Camaro Fits 2010-2015 Camaro SS, rear-mount design, oil-less turbos |
8.5 | 🛒 Check Price |
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BorgWarner Twin Turbo Kit 6.7L Powerstroke Best for Diesel Fits 2011-2016 Ford 6.7L Powerstroke, sequential turbos |
8.3 | 🛒 Check Price |
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Precision Turbo 6766 Twin Kit 2JZ-GTE Best for 2JZ Fits 2JZ-GTE engines, 6766 turbos, T4 flanges |
8.1 | 🛒 Check Price |
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Garrett Motion Twin Turbo Kit 2015+ WRX/STI Best for Subaru Fits 2015+ Subaru WRX/STI, GTX2860R turbos, twin-scroll |
7.8 | 🛒 Check Price |
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CX Racing Twin Turbo Kit 1993-1998 Supra Budget Pick Fits 1993-1998 Toyota Supra 2JZ-GTE, T3/T4 turbos |
7.3 | 🛒 Check Price |
1. Hellion Twin Turbo Kit 2015-2023 Mustang GT: Best Overall
In our evaluation, the Hellion Twin Turbo Kit for the Mustang GT stands out as the best overall option for those seeking serious power gains. Based on owner feedback and the spec sheets, this kit uses premium ball-bearing turbos and cast iron manifolds to handle sustained high boost. The included intercooler and piping ensure consistent intake temperatures, which is critical for engine longevity.
However, this kit is not a plug-and-play upgrade. It demands professional installation and custom tuning to realize its full potential. Owners should also be prepared for additional supporting mods like fuel system upgrades. Those looking for a simpler, lower-cost entry into forced induction might prefer a single turbo or supercharger instead.
- Precision ball-bearing turbos for quick spool and high boost
- Cast iron manifolds and T4 flanges for durability
- Includes full intercooler, piping, and blow-off valve
Pros: Excellent power potential with proper tuning; High-quality components and fitment
Cons: Requires professional installation and tuning
2. On3 Performance Twin Turbo Kit 2011-2020 Mustang GT: Best Value
We compared the On3 Performance twin turbo kit as a strong value contender. It offers a twin turbo setup at a lower price point than many competitors, using T4 flanges and 62mm turbos that can support 700+ horsepower with proper tuning. Owner feedback highlights the active online community, which helps with installation and tuning guidance.
That said, some owners have noted minor fitment issues, particularly with older model years, requiring slight modifications. The kit also lacks some premium features like ball-bearing turbos, which may affect spool time. If you are on a tighter budget and willing to do some custom work, this is a solid choice; otherwise, consider a more refined kit.
- Affordable twin turbo setup without sacrificing quality
- T4 divided flanges for improved spool
- Includes intercooler, blow-off valve, and wastegates
Pros: Great price-to-performance ratio; Good support community and tuning resources
Cons: Some owners report fitment issues on certain years
3. Squires Turbo Systems STS Twin Turbo Kit Camaro SS: Best for Camaro
Our research on twin turbo kits for the Camaro SS led us to the Squires Turbo Systems STS kit. Its rear-mount design places the turbos near the exhaust exit, which helps keep engine bay temperatures lower and makes installation easier since no oil lines need to be run to the engine. The oil-less cartridge turbos are a unique feature that reduces complexity.
However, the rear-mount location exposes the turbos to road debris and moisture, which can shorten lifespan if not properly shielded. Some owners also report a slight lag due to longer exhaust piping. This kit is best for those who prioritize a cooler engine bay and are willing to take extra measures to protect the turbos. Skip it if you drive in harsh conditions frequently.
- Unique rear-mount design keeps turbos away from engine heat
- Oil-less cartridge turbos simplify installation
- Includes all necessary piping and hardware
Pros: Reduces underhood heat and simplifies installation; Good power gains with proper tuning
Cons: Rear-mount can be prone to debris and water exposure
4. BorgWarner Twin Turbo Kit 6.7L Powerstroke: Best for Diesel
For diesel truck owners, the BorgWarner twin turbo kit for the 6.7L Powerstroke is a researched choice. It uses a sequential turbo arrangement to boost low-end torque while maintaining high-RPM power, ideal for towing. The kit features OEM-quality castings and bearings that hold up under extreme loads, according to spec sheets and owner reports.
That said, installation is complex and typically requires professional help. The kit also demands custom tuning to avoid overboost or EGT issues. This is not a weekend project for novices. If you need a reliable, high-output twin turbo for a work truck, this is a top contender; otherwise, a simpler single turbo might suffice.
- Sequential turbo setup for improved low-end and top-end power
- OEM-grade castings and bearings
- Designed for heavy-duty towing and performance
Pros: Significant towing and pulling power gains; Robust construction for diesel applications
Cons: Complex installation and tuning required
5. Precision Turbo 6766 Twin Kit 2JZ-GTE: Best for 2JZ
For 2JZ enthusiasts chasing big numbers, the Precision Turbo 6766 twin kit is a researched choice. These turbos are capable of supporting over 1000 horsepower with the right engine build and tuning. The kit includes intercooler and piping, but the real expense comes from the supporting modifications needed.
However, this kit is not for the faint of heart or wallet. It demands a built engine, upgraded fuel system, and professional tuning. Many owners report that the kit itself is well-made, but the total cost of a reliable 1000hp setup is substantial. If you are building a streetable drag car, this is a proven option; for a daily driver, look elsewhere.
- Twin Precision 6766 turbos capable of 1000+ hp
- Journal bearing design for durability
- Includes intercooler and piping
Pros: Extreme power potential for high-horsepower builds; High-quality turbos from a reputable brand
Cons: Very expensive and requires extensive supporting mods
6. Garrett Motion Twin Turbo Kit 2015+ WRX/STI: Best for Subaru
Our evaluation of twin turbo kits for the Subaru WRX/STI highlights the Garrett Motion kit as a top performer. Using twin GTX2860R turbos with a twin-scroll setup, it offers improved response and higher flow than the stock single turbo. The kit includes all necessary plumbing, though some owners note that the fitment is very tight in the engine bay.
That said, this kit is not a simple bolt-on. It requires significant disassembly and often custom tuning. Some owners have reported clearance issues with certain intercooler setups. This kit is best for experienced Subaru enthusiasts who want to maximize power; beginners may find it overwhelming.
- Twin GTX2860R turbos for quick spool and high flow
- Twin-scroll design reduces lag
- Includes up-pipes, downpipes, and oil/coolant lines
Pros: Significant power gains over stock turbo; Good spool characteristics for a twin setup
Cons: Installation is tight and may require modifications
7. CX Racing Twin Turbo Kit 1993-1998 Supra: Budget Pick
For Supra owners on a tight budget, the CX Racing twin turbo kit offers an affordable entry into forced induction. The kit uses T3/T4 hybrid turbos that can support moderate power levels. Based on owner feedback, it can provide noticeable gains when properly tuned.
However, we must be critical: the kit has a reputation for inconsistent quality, with some owners reporting misaligned flanges, thin piping, and premature turbo failure. Installation often requires modifications and additional parts. This kit is only recommended for those with fabrication skills and a very tight budget; most will be better served saving for a higher-quality kit.
- Budget-friendly twin turbo setup for the 2JZ
- T3/T4 hybrid turbos with journal bearings
- Includes intercooler, piping, and wastegates
Pros: Lowest price point for a twin turbo kit; Decent power gains for the cost
Cons: Lower quality control and fitment issues reported
Frequently Asked Questions
What is a twin turbo kit?
A twin turbo kit uses two turbochargers to force more air into the engine, increasing power. They can be arranged in parallel or sequential configurations to improve boost response and top-end power. Kits typically include turbos, manifolds, piping, intercooler, and wastegates.
Do I need a tune after installing a twin turbo kit?
Yes, a proper tune is essential. Without tuning, the engine may run too lean or rich, causing damage. Professional tuning ensures safe air-fuel ratios and ignition timing for the added boost.
How much horsepower can a twin turbo kit add?
Horsepower gains vary widely by kit and engine. A well-built twin turbo system can add 100-300+ horsepower, but supporting mods like fuel system, intercooler, and engine internals may be needed for higher outputs.
Can I install a twin turbo kit myself?
Installation is complex and typically requires advanced mechanical skills, welding, and fabrication. Most owners opt for professional installation to ensure proper fitment and reliability.
Are twin turbo kits reliable for daily driving?
Reliability depends on the quality of the kit, installation, and tuning. High-quality kits from reputable brands can be reliable if properly maintained and not pushed beyond their limits. However, they add complexity and potential failure points.
Our Verdict
After researching and comparing the top twin turbo kits, our top pick is the Hellion Twin Turbo Kit for the Mustang GT due to its excellent performance and build quality. For those seeking great value, the On3 Performance Twin Turbo Kit offers a strong balance of price and capability. Always consider your specific vehicle, power goals, and budget before purchasing.
Last reviewed and spec-checked: May 30, 2026. We re-check our picks and listings periodically.
