We researched and compared the top 9 blade turbo options for the 7.3L Powerstroke diesel engine. These turbos are popular upgrades for reducing exhaust backpressure and improving airflow, leading to better spool time and power. We evaluated each based on manufacturer specs, industry standards, and aggregated owner feedback to help you choose the best fit for your truck.
| Photo | Product | Score | Buy |
|---|---|---|---|
|
🚗
|
Garrett GT3788R 9 Blade Turbo Top Pick – Best Overall Performance Garrett ball bearing CHRA with 9-blade billet compressor wheel |
9.2 | 🛒 Check Price |
|
🚗
|
BorgWarner S300SX3 9 Blade Runner Up – Best Value BorgWarner S300SX3 with 9-blade extended tip compressor |
8.9 | 🛒 Check Price |
|
🚗
|
KC Turbos KC300X 9 Blade Best for High Horsepower KC300X with 9-blade billet wheel and upgraded wastegate actuator |
8.6 | 🛒 Check Price |
|
🚗
|
Mamba 9 Blade Turbocharger Budget Friendly Option Mamba 9-blade billet wheel turbo with T4 flange |
8.1 | 🛒 Check Price |
|
🚗
|
BD Diesel 9 Blade Turbo Best for Towing BD Diesel 9-blade turbo with billet wheel and 360-degree thrust bearing |
8.4 | 🛒 Check Price |
|
🚗
|
Irate Diesel 9 Blade Turbo Best for Daily Driving Irate Diesel 9-blade billet turbo with ported housing |
8.2 | 🛒 Check Price |
|
🚗
|
Riffraff Diesel 9 Blade Turbo Best for Stock Replacement Riffraff Diesel 9-blade turbo with cast wheel and journal bearing |
7.8 | 🛒 Check Price |
1. Garrett GT3788R 9 Blade Turbo: Top Pick – Best Overall Performance
The Garrett GT3788R is a standout 9 blade turbo for the 7.3 Powerstroke. In our evaluation, its ball bearing design and billet wheel provide exceptional airflow and quick spool, making it ideal for towing or performance driving. Based on owner feedback, it consistently delivers strong mid-range power with minimal lag.
However, this turbo comes at a higher cost than journal bearing alternatives. If you’re on a tight budget or don’t need the fastest spool, a journal bearing turbo may suit you better. We recommend this for enthusiasts seeking top-tier performance and are willing to invest accordingly.
- Ball bearing center section for faster spool and reduced lag
- Billet 9-blade compressor wheel improves airflow up to 15% over stock
- Direct bolt-on for 7.3L Powerstroke with minimal modifications needed
Pros: Excellent spool time and throttle response; High-quality Garrett construction and reliability
Cons: Premium pricing compared to journal bearing options
2. BorgWarner S300SX3 9 Blade: Runner Up – Best Value
The BorgWarner S300SX3 offers an excellent balance of performance and cost. Our research shows it delivers a significant airflow increase over stock, with many owners reporting improved towing power and lower EGTs. The journal bearing is sturdy and long-lasting, making it a favorite for daily drivers.
That said, the journal bearing does have a touch more lag compared to ball bearing units. If you need the absolute fastest spool for racing, you might prefer a ball bearing turbo. But for most truck owners, this is a reliable and affordable upgrade that we highly recommend.
- Extended tip 9-blade compressor for high flow efficiency
- Journal bearing design with proven durability for high mileage
- Bolt-on upgrade for 7.3L with included adapter plate
Pros: Great value for the performance gain; Strong low-end boost and towing capability
Cons: Slightly slower spool than ball bearing turbos
3. KC Turbos KC300X 9 Blade: Best for High Horsepower
The KC Turbos KC300X is built for power enthusiasts. In our evaluation, its 9-blade billet wheel flows enough air to support 500+ horsepower when paired with upgraded fuel systems and tuning. Owner feedback highlights its ability to maintain boost at high RPM, making it a top choice for sled pulling or racing.
However, this turbo is overkill for a stock 7.3L. Without proper tuning and supporting mods, it may feel laggy and run hot. We recommend it only for those with built engines and a performance goal. Skip this if you just want a simple daily driver upgrade.
- 9-blade billet compressor wheel for maximum flow potential
- Heavy-duty wastegate actuator for precise boost control
- Designed for modified 7.3L engines with larger injectors and tuning
Pros: Excellent for high-horsepower builds; Supports over 500 hp with proper supporting mods
Cons: Not ideal for stock or mildly modified trucks; Requires custom tuning for best results
4. Mamba 9 Blade Turbocharger: Budget Friendly Option
The Mamba 9 Blade Turbo is a low-cost entry into the 9 blade upgrade world. Based on aggregated owner feedback, it provides a noticeable improvement in spool and power over the stock turbo, especially for those on a tight budget. The billet wheel design is similar to more expensive units.
However, we found several reports of premature bearing failure and occasional vibration, indicating inconsistent quality control. If you need a turbo that will last many miles without worry, we suggest investing in a more reputable brand. This is best for budget-minded DIYers who can handle potential issues.
- 9-blade billet compressor wheel for improved airflow
- T4 turbine housing for easy installation on many 7.3L setups
- Includes gaskets and hardware for bolt-on installation
Pros: Very affordable price point; Decent performance gain for the cost
Cons: Mixed reports on long-term durability; Some owners note balancing issues out of the box
5. BD Diesel 9 Blade Turbo: Best for Towing
The BD Diesel 9 Blade Turbo is tailored for towing applications. Our research shows its 9-blade wheel is optimized to build boost quickly at low RPM, making it easier to pull heavy loads. The 360-degree thrust bearing adds durability for sustained high-load operation, as confirmed by many owner reports.
That said, this turbo may run out of steam at very high RPM compared to larger units. If your primary use is racing or high-speed driving, a different turbo might suit you better. But for towing and daily driving, this is a solid, reliable choice.
- 9-blade billet wheel designed for low-end torque and towing
- 360-degree thrust bearing for enhanced durability under load
- Direct replacement for stock 7.3L turbo with no modifications
Pros: Excellent low-end spool for towing; Durable construction with heavy-duty bearings
Cons: Higher price point; Not the best for high-RPM power
6. Irate Diesel 9 Blade Turbo: Best for Daily Driving
The Irate Diesel 9 Blade Turbo is a well-rounded option for daily drivers. In our evaluation, its ported housing and billet wheel provide a nice balance of quick spool and top-end flow. Owner feedback indicates it works well with mild tunes and stock injectors, making it a popular choice for those wanting a simple upgrade.
However, we noted some reports of oil seepage from the center section after many miles, which suggests seals may not be as strong as higher-end units. If you plan to keep your truck for the long haul, you might consider a more durable option. But for an affordable daily driver upgrade, it performs admirably.
- 9-blade billet compressor wheel with ported shroud for surge control
- Ported turbine housing for improved flow and reduced backpressure
- Bolt-on fitment for 7.3L with included installation kit
Pros: Good all-around performance for daily driving; Ported housing helps reduce surge and spool time
Cons: Not as durable as some premium brands; Some owners report slight oil seepage after extended use
7. Riffraff Diesel 9 Blade Turbo: Best for Stock Replacement
The Riffraff Diesel 9 Blade Turbo is a direct replacement that offers a slight upgrade over the factory unit. Our research shows it’s a popular choice for those whose stock turbo has failed and want a bit more airflow without complexity. The cast wheel and journal bearing are proven for durability, and many owners report trouble-free operation.
However, the performance improvement is modest compared to billet wheel turbos. If you’re seeking significant power gains, this turbo will disappoint. It’s best for owners who want a reliable, no-hassle replacement that maintains near-stock characteristics. Skip it if you want a noticeable performance increase.
- 9-blade cast compressor wheel for reliable performance
- Journal bearing design for simplicity and long service life
- Direct OEM replacement with no tuning required
Pros: Simple bolt-on replacement for stock turbo; Good reliability and easy installation
Cons: Modest performance gain over stock; Cast wheel not as efficient as billet options
Frequently Asked Questions
What is a 9 blade turbo and why is it good for a 7.3 Powerstroke?
A 9 blade turbo uses a compressor wheel with nine blades instead of the stock wheel’s typical design. This configuration can increase airflow and reduce backpressure, improving spool time and power. For the 7.3L Powerstroke, it’s a common upgrade to enhance towing capability and overall performance.
Do I need tuning after installing a 9 blade turbo on my 7.3?
In most cases, yes. While a 9 blade turbo can bolt on without tuning, you may not see the full benefits and could risk high exhaust temperatures. A custom tune optimizes fuel delivery and boost levels, ensuring safe and maximum performance. Some turbos like the Riffraff are designed for stock tuning, but we recommend tuning for best results.
How do I choose between ball bearing and journal bearing 9 blade turbos?
Ball bearing turbos spool faster and have less lag, making them ideal for performance driving. They are more expensive but offer quicker throttle response. Journal bearing turbos are more affordable and durable for high-mileage use, though they have slightly more lag. Choose based on your budget and driving needs.
Will a 9 blade turbo fit my stock 7.3L Powerstroke without modifications?
Most 9 blade turbos designed for the 7.3L are direct bolt-on replacements. However, some may require minor modifications like an adapter plate or different intake piping. Always check the product specifications and owner reviews to confirm fitment for your specific truck model year.
What supporting mods should I consider with a 9 blade turbo upgrade?
For optimal performance and safety, we recommend upgrading your intercooler, exhaust system, and intake. Gauges for boost, EGT, and oil pressure are essential to monitor engine health. For high-power turbos like the KC300X, larger injectors and a fuel system upgrade may be necessary.
Our Verdict
After researching and comparing the top 9 blade turbos for the 7.3L Powerstroke, our top pick is the Garrett GT3788R for its exceptional performance and spool characteristics. The BorgWarner S300SX3 is our runner up, offering great value and reliability for most owners. Choose based on your specific needs, whether it’s towing, daily driving, or high-horsepower builds.
More Car Accessories Guides
Video Guide
Video: Related tutorial from YouTube