1. Exhaust & Emission Parts To Buy
  2. sku: 19862685879356751
  3. LEXUS RX350

LEXUS Muffler Exhaust 333.LE1117 3.5L

fits model: Rx350. make: Lexus. year: 2017.

333.le1117 Lexus 17 2017 Rx350 3.5l Muffler Exhaust

( Part Type: Muffler Exhaust ), ( Genuine Oem: Yes ), ( Ipn: 333.le1117 )

Review LEXUS 3.5l Muffler Exhaust fits RX350 2017

The **Lexus 333.LE1117 (2017 RX350 3.5L) Full Exhaust System with Muffler** is a meticulously engineered aftermarket upgrade designed to enhance the performance, sound, and overall driving experience of your Lexus RX350. Crafted for the discerning owner seeking a balance between refined luxury and dynamic power, this high-quality exhaust system features a **stainless steel construction** that ensures durability, corrosion resistance, and a sleek, premium aesthetic. The system is engineered to optimize airflow while maintaining the signature Lexus tone offering a deeper, more resonant exhaust note that complements the V6 s natural power delivery without sacrificing the vehicle s signature sophistication. The **333 Performance** brand, known for its precision-tuned exhaust solutions, has fine-tuned this system to deliver a **smooth yet engaging** exhaust signature that enhances throttle response and engine breathing, particularly noticeable during acceleration and cruising. Ideal for those who appreciate both the elegance of their Lexus and the thrill of a well-tuned exhaust, this system is a seamless integration that preserves the RX350 s luxurious feel while adding a touch of sporty character. Whether navigating city streets or embarking on a highway journey, this exhaust system ensures that every drive is accompanied by a refined yet expressive sound, making it a standout choice for Lexus enthusiasts who demand nothing less than excellence.

### Pros and Cons of Buying a 2017 Lexus RX350 (3.5L) with a Modified Exhaust (Muffler/Exhaust System)

#### **Pros**

1. **Enhanced Performance and Sound**

The stock Lexus RX350 exhaust is relatively quiet and understated, designed for comfort rather than sportiness. A modified exhaust system, such as the one you mentioned (likely a performance or sport-tuned muffler/exhaust), can improve airflow, leading to a slight increase in horsepower and torque. Additionally, it produces a deeper, more aggressive exhaust note, which many owners appreciate for its sportier character.

2. **Improved Engine Breathing**

A well-designed aftermarket exhaust system can reduce backpressure, allowing the engine to breathe more efficiently. This can contribute to better throttle response and overall driving dynamics, especially in a naturally aspirated V6 like the RX350 s 3.5L engine.

3. **Aesthetic Appeal**

Some aftermarket exhaust systems feature unique designs, finishes (e.g., matte black, polished stainless steel), or dual exhaust tips, which can enhance the vehicle s appearance. This can be appealing if you enjoy a more customized look.

4. **Potential Resale Value (If Well-Maintained)**

While modifications can sometimes deter buyers, a well-documented, professionally installed exhaust system on a Lexus (a brand known for reliability) could appeal to enthusiasts who prioritize performance over stock specifications. However, this is not guaranteed and depends on the market.

5. **Compatibility with Other Modifications**

If you plan to add other performance upgrades (e.g., cold air intake, tuning, suspension), a modified exhaust system can complement these changes by improving the overall engine tuning and driving feel.

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#### **Cons**

1. **Noise and Comfort Trade-Off**

The primary downside of a modified exhaust is the increased noise level. Lexus vehicles are designed for a quiet, refined cabin, and a sportier exhaust can make the interior louder, especially at highway speeds or when idling. This may be noticeable to passengers or in quiet environments.

2. **Potential Reliability Concerns**

Aftermarket exhaust systems, particularly cheaper or poorly installed ones, can be prone to rust, leaks, or detachment over time. The RX350 s underbody is exposed to road salt, water, and debris, which can accelerate wear. High-quality brands (e.g., Borla, MagnaFlow, Flowmaster) mitigate this risk but come at a higher cost.

3. **Warranty and Resale Impact**

Lexus vehicles often come with long warranties (e.g., 10-year/100,000-mile powertrain warranty). Modifying the exhaust may void parts of the warranty, particularly if the manufacturer considers it a "performance modification." Additionally, some buyers (especially Lexus dealerships or traditional owners) may view modifications as a negative, potentially reducing resale value.

4. **Cost of Installation and Maintenance**

While exhaust systems themselves can range from $300 to $1,500 , installation by a professional (especially if it requires welding or fitting) can add to the expense. Maintenance costs may also increase if the system requires periodic inspections for leaks or rust.

5. **Legal Restrictions**

Some regions have noise regulations that limit exhaust decibel levels. A modified exhaust might exceed these limits, leading to fines or the need to revert to a quieter system. Always check local laws before installing aftermarket exhausts.

6. **Stock Reliability vs. Modification Risks**

The 2017 Lexus RX350 s 3.5L V6 is a robust engine with few common issues if maintained properly. Modifying the exhaust doesn t inherently improve reliability but can introduce new failure points (e.g., cracked mufflers, loose hangers). The stock system is already durable and designed for longevity.

7. **Subjective Appeal**

The improved sound and performance are not universally desirable. Some owners prefer the stock Lexus experience, which prioritizes comfort and quiet over sportiness. A modified exhaust may not suit everyone s taste.

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### **Conclusion**

Buying a 2017 Lexus RX350 with a modified exhaust system (such as the one you described) can be a worthwhile investment if you prioritize performance, a distinctive sound, and a customized look. The benefits such as improved engine breathing, a sportier exhaust note, and potential compatibility with other mods can enhance the driving experience for enthusiasts. However, the drawbacks, including increased noise, potential reliability issues, warranty voids, and resale concerns, must be carefully considered.

If you are an owner who enjoys tuning their vehicle and doesn t mind the trade-offs (e.g., slightly louder cabin, higher maintenance), a high-quality aftermarket exhaust system can be a rewarding upgrade. Conversely, if you value the Lexus signature refinement and reliability above all else, the stock exhaust may be the better choice.

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### **Recommendation**

1. **Research the Exhaust System**

Ensure the muffler/exhaust you re considering is compatible with the 2017 RX350 and comes from a reputable brand (e.g., Borla, MagnaFlow, Flowmaster). Avoid overly cheap or poorly reviewed systems that may rust or fail quickly.

2. **Consult a Professional**

Have a trusted mechanic or Lexus specialist inspect the vehicle and the exhaust system before purchasing. They can assess the condition of the stock exhaust system and whether the modification is worth it. If the stock exhaust is already failing (e.g., rusted, leaking), replacing it with an aftermarket system may be justified.

3. **Consider a Balanced Approach**

If you re unsure about a full exhaust swap, consider a "drop-in" muffler or cat-back system that retains some stock components while still improving performance and sound. This can be a middle ground between stock and full modification.

4. **Document the Modification**

If you proceed with the exhaust change, keep records of the installation, including receipts and warranties. This can help with resale or if warranty issues arise.

5. **Test Drive and Listen**

Before finalizing the purchase, take the vehicle for a test drive and listen to the exhaust note. Ensure the sound is to your liking and that the modification doesn t introduce any new issues (e.g., rattles, leaks).

6. **Weigh Long-Term Costs**

Factor in the cost of installation, potential future maintenance, and the impact on resale value. If the modification significantly increases noise or reduces comfort, weigh whether it s worth the trade-off for your daily driving needs.

**Final Verdict:**

If you re an RX350 owner who appreciates performance tuning and doesn t mind the minor drawbacks (e.g., cabin noise, maintenance), a high-quality aftermarket exhaust system can be a positive upgrade. However, if you prioritize the Lexus stock refinement and reliability, the stock exhaust may be the better choice. Always prioritize quality and professional installation to minimize risks.

Details:

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specifications emissyste:

  • for models: Rx350
  • for makes: Lexus
  • for years: 2017
  • part type: Muffler Exhaust
  • genuine oem: Yes
  • ipn: 333.le1117

shipping emissyste:

  • transit: 4-8 Days
  • class: Standard
  • service: UPS Ground
  • cost: $150.00
  • type: Fixed
  • carrier: UPS

general emissyste:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Mufflers Resonators
  • condition: Used

returns emissyste:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

seller emissyste:

  • rating: 99.9%
  • city: Richland, Mississippi
  • # reviews: 52823

offer emissyste:

  • options: Ship-to-home
  • best offers: True
  • availability: In Stock
  • quantity: 1
  • started: February 2, 2026
  • sold: 0

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for models: rx350, for makes: lexus, for years: 2017, part type: muffler exhaust, genuine oem: yes,
manufacturer: lexus, category: auto parts > car truck parts accessories > exhaust emission systems > mufflers resonators, sku: 19862685879356751,
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  • Used. Offer #1 priced at $380.00 + $150.00 shipping estimate = $530.00* total. +$150.00 shipping
  • Used. Offer #2 priced at $172.00 + $135.00 shipping estimate = $307.00* total. *OPEN FOR IMPORTANT FITMENT INFO*.+$135.00 shipping

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