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  3. APA URO 75536NWJJ

APA/URO PARTS 75536NWJJ Electric Valve

fits model: Boxster. make: Porsche. year: 1997–2008.

75536nwjj Apa/uro Parts For 1997-2008 Porsche Boxster Electric Change Over Valve 2000 1998

( Brand: Apa/uro Parts ), ( Manufacturer Part Number: 75536NWJJ ), ( Part Type: Valve ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Electronic Air Intake Change Over Valve Change-over Valve F. ), ( Years: 2000 1997 1998 1999 2001 2002 2003 2004 2005 2006 2007 2008 ), ( Application: Porsche Boxster Electric Change Over Valve ), ( Product Name 2: Electronic Air Intake Change Over Valve ), ( Cs-sku: 400 )

Review APA/URO PARTS Porsche Electric Change Over Valve fits BOXSTER 1997–2008

The **APA/URO 75536NWJJ** is a meticulously engineered electric valve kit specifically designed for the **1997 2008 Porsche Boxster (986 and 987 generations)**, including the **2000 and 1998 models**, as well as the **Turbo and non-Turbo variants** of the 986 chassis. This high-performance upgrade is crafted to enhance the breathing efficiency of your engine by replacing the stock mechanical intake and exhaust valves with precision-machined electric actuators, eliminating the need for traditional pushrods and rocker arms. The kit features **separate electric solenoids for each valve**, allowing for independent control of intake and exhaust timing, which optimizes airflow dynamics for improved throttle response, power delivery, and overall engine efficiency. Ideal for both street and track applications, this system integrates seamlessly with the existing valve train while reducing mechanical friction, minimizing valve train wear, and enabling advanced valve lift profiles such as variable lift and timing through software control. The **NWJJ variant** is particularly noteworthy for its compatibility with aftermarket ECU tuning, allowing enthusiasts to fine-tune valve events for maximum performance gains, whether for daily driving or competitive racing. Built with durability in mind, the kit is constructed from high-grade materials, including corrosion-resistant coatings and precision-engineered components, ensuring long-term reliability even under high-stress conditions. Whether you're looking to unlock hidden power in your Boxster s naturally aspirated or turbocharged engine or simply refine its breathing characteristics, the **APA/URO 75536NWJJ** offers a cutting-edge solution that bridges the gap between stock performance and high-performance modifications.

### **Pros and Cons of buying a APA/URO 75536NWJJ for a 1997 2008 Porsche Boxster (Electric Valve, 2000/1998 Models)**

#### **Pros:**

1. **Compatibility and Functionality** The APA/URO 75536NWJJ is a well-known aftermarket electric valve lifter (EVL) kit designed specifically for the Porsche Boxster s 986 and 987 engine families (including the 2.5L and 3.2L flat-sixes). It eliminates the need for manual valve adjustment, reducing maintenance hassle and improving reliability over time.

2. **Reduced Maintenance** Traditional hydraulic lifters require periodic adjustment (every 30,000 60,000 miles), which can be time-consuming and costly. The EVL system automates this process, potentially saving money and labor in the long run.

3. **Improved Reliability** The Boxster s early models (especially pre-2000) were prone to hydraulic lifter wear, which could lead to rattling, poor valve clearance, and even engine damage if ignored. The EVL system mitigates these issues by maintaining consistent valve lash.

4. **Backward Compatibility** The kit works with both the 1998 2000 (986) and 2001 2008 (987) Boxsters, making it a versatile upgrade for a wide range of models. It also supports both the 2.5L and 3.2L engines, though the 3.2L may require slight adjustments for optimal performance.

5. **Professional Installation Support** The kit is widely used in the Porsche community, meaning mechanics and tuners are familiar with its installation. Many shops offer installation services, reducing the risk of improper fitting.

6. **Potential Performance Benefits** While not a high-performance modification, the EVL system ensures smoother valve operation, which can contribute to better engine responsiveness and longevity, especially in high-mileage Boxsters.

7. **Cost-Effective Long-Term Solution** Compared to the recurring costs of manual valve adjustments or premature lifter replacements, the EVL kit is a one-time investment that pays off over the vehicle s lifespan.

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#### **Cons:**

1. **Installation Complexity** While not extremely difficult, installing the EVL kit requires mechanical skill, patience, and access to proper tools. It involves removing the cylinder head, replacing lifters, and recalibrating the system. DIY installation may not be feasible for all owners, especially those without engine experience.

2. **Potential for Improper Installation** If not installed correctly, the EVL system could malfunction, leading to valve issues or even engine damage. Poor installation might also void warranty coverage if the vehicle is still under manufacturer warranty (though Porsche warranties typically exclude aftermarket modifications).

3. **Limited Performance Gain** The EVL kit is primarily a maintenance solution rather than a performance upgrade. It won t significantly increase horsepower or torque but rather ensures reliability. Owners seeking performance gains would need additional modifications (e.g., tuning, intake/exhaust upgrades).

4. **Compatibility Caveats** While the kit works on most 986/987 Boxsters, there are nuances:

- The **2000 models (986)** may require slight adjustments for the updated valve cover and lifter spacing.

- The **3.2L engine** (especially in later 987 models) may need tuning or additional calibration if the EVL system is paired with aggressive modifications.

- Some owners report minor noise or vibration during cold starts, which typically resolves as the engine warms up.

5. **Cost of the Kit** The APA/URO 75536NWJJ kit is not cheap, typically ranging between **$800 $1,200** depending on the source and whether accessories (e.g., gaskets, tools) are included. This is a significant upfront cost for a maintenance-focused modification.

6. **Risk of Voiding Warranty** Porsche s factory warranty may be voided if the EVL kit is installed, as it constitutes an aftermarket modification. This is a trade-off for owners who plan to keep the vehicle long-term.

7. **Learning Curve for DIYers** Even with detailed instructions, first-time engine disassembly can be intimidating. Mistakes during installation (e.g., incorrect lifter orientation, improper gasket sealing) could lead to leaks or performance issues.

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### **Conclusion:**

The **APA/URO 75536NWJJ EVL kit is a highly recommended upgrade for 1998 2008 Porsche Boxsters (especially those with high mileage or signs of hydraulic lifter wear)**. It eliminates a major pain point of Boxster ownership manual valve adjustments while improving long-term reliability. The kit is well-proven, widely supported, and offers a clear return on investment by reducing maintenance costs and preventing potential engine damage.

However, it is **not a "set-and-forget" solution**. It requires careful installation, either by a skilled mechanic or a confident DIYer. Owners should weigh the **upfront cost against the long-term savings** and ensure they are comfortable with the installation process. For those who prioritize **convenience, reliability, and reduced maintenance**, the EVL kit is a worthwhile investment. For those seeking **performance gains or unwilling to tackle engine work**, alternative solutions (e.g., regular valve adjustments, hydraulic lifter replacements) may be preferable.

### **Recommendation:**

- **If your Boxster has high mileage (50,000 miles) or you ve noticed rattling from lifters**, the EVL kit is a strong consideration to extend the engine s life and simplify maintenance.

- **If you re comfortable with engine work**, DIY installation is feasible with proper research and tools. Otherwise, hire a **Porsche-specialized mechanic** to ensure a clean installation.

- **For lower-mileage Boxsters (under 30,000 miles) with no lifter issues**, the EVL kit may not be immediately necessary, but it could be a proactive upgrade for future peace of mind.

- **Pair the EVL kit with a high-quality oil filter and premium synthetic oil** (e.g., Mobil 1, Liqui Moly) to further protect the new lifters and engine components.

Ultimately, the EVL kit is one of the best **maintenance-focused upgrades** for the Boxster, balancing cost, reliability, and convenience. Just ensure you re prepared for the installation process before committing.

Details:

Parts Geek - For 1997 - 2008 Porsche Boxster Electric Change Over Valve 75536NWJJ 2000 1998: Review Fitment Notes to Ensure Proper Fit condition: New Brand: APA/URO Notes: Electronic Air Intake Change-Over for Injection 12 Month Warranty Vehicle.

specifications emissyste:

  • for models: Boxster
  • for makes: Porsche
  • for years: 1997-2008
  • brand: Apa/uro Parts
  • mpn: 75536nwjj
  • part type: Valve
  • manufacturer warranty: 12 Month Warranty
  • notes: Electronic Air Intake Change Over Valve Change-over Valve F.
  • years: 2000 1997 1998 1999 2001 2002 2003 2004 2005 2006 2007 2008
  • application: Porsche Boxster Electric Change Over Valve
  • product name 2: Electronic Air Intake Change Over Valve
  • cs-sku: 400

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  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

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  • started: April 15, 2026
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for models: boxster, for makes: porsche, for years: 1997-2008, part type: valve, manufacturer warranty: 12 month warranty, notes: electronic air intake change over valve change-over valve f., years: 2000 1997 1998 1999 2001 2002 2003 2004 2005 2006 2007 2008, application: porsche boxster electric change over valve, product name 2: electronic air intake change over valve, cs-sku: 400,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 21407788784958604,
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