SUBARU 16696AA010 Fuel Injector Spacers FA20DIT

( Manufacturer Part Number: 16696AA010 ), ( Type: Fuel Injector ), ( Fuel Type: Gasoline )

Review SUBARU Fuel Injector Spacers fits FORESTER TURBO WRX XT 2014–2021

The **Subaru 16696AA010 14" x 21" FA20DIT Turbo Fuel Injector Spacers for WRX/Forester STI (XT)** are meticulously engineered aftermarket components designed to enhance the performance and reliability of Subaru s high-output FA20DIT turbocharged engines, particularly those found in the WRX, Forester STI, and XT models. These precision-machined spacers are crafted to address a common issue in turbocharged applications where the stock fuel injectors may experience excessive heat buildup or mechanical stress due to the aggressive nature of forced induction. By increasing the spacing between the injectors and the intake manifold, these spacers create a critical gap that allows for improved airflow and better heat dissipation, reducing the risk of injector failure, carbon buildup, or premature wear. Constructed from high-grade, heat-resistant materials, these spacers are built to withstand the extreme temperatures and pressures generated by the FA20DIT s turbocharged operation, ensuring long-term durability and compatibility with aftermarket upgrades such as larger turbochargers, high-flow fuel pumps, or aggressive tuning setups. Whether you're running a stock or heavily modified engine, these spacers provide a straightforward yet effective solution to optimize fuel delivery, prevent injector fouling, and maintain peak performance under heavy loads. Ideal for both street and track applications, they seamlessly integrate with the stock fuel rail setup while offering the added benefit of easier maintenance access, making them a must-have component for any serious Subaru enthusiast looking to maximize efficiency and longevity in their turbocharged FA20DIT engine.

### **Pros and Cons of Buying Subaru 16696AA010 (14-21 FA20DIT Turbo Fuel Injector Spacers for WRX/Forester XT)**

1. **Compatibility** These spacers are specifically designed for the **FA20DIT engine** found in **2014-2021 Subaru WRX/Forester XT models**, ensuring a proper fit without interference issues.

2. **Performance Benefits** The spacers help maintain optimal **turbocharger spacing**, reducing lag and improving throttle response. They also prevent **turbo whine** and **compressor surge** by allowing proper airflow dynamics.

3. **Durability** Made from high-quality materials (likely **aluminum or billet steel**), these spacers are built to withstand the stresses of forced induction without warping or cracking.

4. **Easy Installation** Designed for straightforward installation, requiring minimal modification to existing components. Most users report a **bolt-on upgrade** with no major disassembly needed.

5. **Cost-Effective Upgrade** Compared to full turbo kits or engine swaps, these spacers are a **low-cost performance enhancement** that can significantly improve drivability.

6. **Aftermarket Support** Widely available from **Subaru specialty shops, online retailers, and performance tuners**, making replacements and adjustments easy if needed.

7. **Potential for Increased Reliability** Proper spacing reduces **turbo stress**, which can extend the life of the **turbocharger and intercooler system** over time.

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1. **Limited Direct Power Gain** While spacers improve **responsiveness and smoothness**, they do not **increase horsepower or torque** on their own. They work best when paired with a **tune or other performance mods**.

2. **Requires Tuning for Optimal Results** If installed without a **standalone tune or ECU flash**, the engine may run **rich or lean**, leading to **poor fuel economy or potential drivability issues**. A **standalone tune (e.g., AEM, Haltech, or Link) is highly recommended**.

3. **Potential for Turbo Damage if Misapplied** If installed incorrectly (e.g., wrong spacing or improper alignment), it could **restrict airflow** or cause **turbo binding**, leading to **premature wear**.

4. **Not a Cure for Existing Issues** If the **turbo, wastegate, or intercooler** is already damaged, spacers alone won t fix **leaks, oil contamination, or internal turbo failures**. A full inspection is needed before installation.

5. **May Void Some Warranties** If the vehicle is still under **factory warranty**, modifying the turbo system (even with spacers) could **void certain coverage**, especially if done without OEM approval.

6. **Installation Skill Dependency** While straightforward, **poor alignment or torque specifications** can lead to **warped spacers or bent bolts**, requiring rework.

7. **Not a Substitute for Maintenance** If the **oil is neglected, turbo bearings wear out**, or the **intercooler is clogged**, spacers won t compensate for **poor maintenance practices**.

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The **Subaru 16696AA010 turbo fuel injector spacers** are a **highly beneficial bolt-on upgrade** for FA20DIT owners looking to **reduce turbo lag, improve throttle response, and enhance overall drivability**. They are **relatively inexpensive, easy to install, and widely supported** in the aftermarket.

However, they **do not increase power on their own** and **require proper tuning** to avoid drivability issues. They are **best suited for drivers who want a smoother, more responsive turbocharged experience** rather than a raw power boost.

- A **standalone tune** (e.g., AEM, Haltech, or Link)

- **Proper maintenance** (fresh oil, turbo inspection)

- **Optional upgrades** (intercooler, upgraded wastegate if needed)

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You want **better turbo response and reduced lag** in your FA20DIT.

You re running a **tune or plan to get one** for optimal performance.

You re looking for a **low-cost, high-impact modification** before more expensive upgrades.

Your turbo system is **otherwise in good condition** (no leaks, proper oil supply).

You expect **power gains without tuning** this is a **drivability mod, not a horsepower mod**.

Your **turbo or intercooler is failing** fix those first.

You re **not comfortable with basic engine modifications** installation is simple but requires attention to detail.

These spacers are **ideal for daily drivers or track-focused FA20DIT owners** who want **smoother power delivery** without a full engine rebuild. They are a **great stepping stone** before considering **larger mods like a full turbo kit or forced induction upgrades**.

For **best results**, pair them with a **reputable tuner** and **regular maintenance** to ensure long-term reliability.

Details:

Good used OEM parts. Vehicle Fitment - Subaru FA20DIT Turbo Engine. Part taken from a Subaru FA20DIT Engine. Part Number - FA20DIT Turbo Fuel Injector Spacers 16696AA010 Qty 4.

2014 - 2018 Forester XT. Parts shows minor cosmetic signs of use as shown in the listing images.

part #: 16696aa010 prices

• $3799.99-$4395.00

specifications carfuelinjector:

• for models: Turbo, Wrx, Xt, Forester
• for makes: Subaru
• for years: 2014-2021
• mpn: 16696aa010
• type: Fuel Injector
• fuel type: Gasoline

seller carfuelinjector:

• rating: 99.9%
• city: Brighton, Michigan
• # reviews: 1619

payments carfuelinjector:

• wallet: Apple-pay
• other
• credit card: Discover

returns carfuelinjector:

• paid by: Buyer
• time: 14 Days
• policy: Returns Accepted

offer carfuelinjector:

• quantity: 1
• started: March 15, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home

shipping carfuelinjector:

• carrier: USPS
• type: Fixed
• class: Standard, Expedited
• transit: 3-6 Days
• service: USPS Ground Advantage, USPS Priority Mail
• cost: $0.00

general carfuelinjector:

• condition: Used
• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

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