I’ve had enough of the noise coming from my 2020 gas EFI golf cart. I’ve been eyeing the Quietech muffler, but I’m not sure if it’ll fit without a bunch of modifications. Has anyone successfully done this? I’m really hoping for a quieter ride without a major overhaul.
Response:
I had a similar noise issue with my Yamaha EFI golf cart. What worked for me was adding an underbody shield with sound dampening foam, similar to what’s found in Quietech models. It wasn’t just the muffler; these extra steps made a world of difference.
Solutions that Worked for Users
| Solution | Users Who Found Success | Approx. Cost (USD) | Approx. Time Needed (Minutes) |
|---|---|---|---|
| Adding Underbody Shield with Sound Dampening Foam | 3 | $100 – $150 | 60 – 90 |
| Modifying or Removing Spark Arrester | 2 | $0 – $50 (if DIY) | 30 – 60 |
| Installing Plowman’s Performance Kit | 1 | $250 – $400 | 120 – 180 |
Symptoms
- Excessive noise from the golf cart, particularly at higher speeds.
- Lack of torque, especially in low and mid-range speeds.
Possible Causes
- Inefficient muffler design in the 2020 gas EFI cart.
- Absence of additional sound dampening features.
- Suboptimal exhaust system configuration.
Solutions that Worked
1. Adding Underbody Shield with Sound Dampening Foam
- What I Did: Installed an underbody shield with sound dampening foam, akin to Quietech models.
- Outcome: Remarkable reduction in noise levels, significantly quieter ride.
- Personal Experience: The installation was straightforward. The difference in noise level was immediately noticeable.
- Detailed Steps:
- Selecting the Right Shield: Ensure you get a shield that fits your cart model. Compatibility is key.
- Preparation: Safely lift the cart using appropriate jacks and stands. Ensure the area is clean and accessible.
- Installation: Align the shield correctly under the body. Use the right tools to secure it in place, ensuring no loose ends.
- Sound Foam Placement: Attach the sound dampening foam to the shield. The positioning should maximize sound absorption.
- Testing: Lower the cart and take it for a test drive. Notice the changes in sound, especially on different terrains.
- Expert Tip: Regular maintenance checks post-installation are crucial. Ensure the shield remains intact and securely attached.
2. Modifying or Removing Spark Arrester
- What I Did: Altered the spark arrester in the exhaust system for better airflow.
- Outcome: Slight increase in noise but a noticeable improvement in exhaust efficiency.
- Personal Experience: This modification was a simple yet effective way to enhance the cart’s performance.
- Detailed Steps:
- Locating the Arrester: Find the spark arrester in the exhaust system. It’s usually accessible from under the cart.
- Modification: Carefully drill small holes or remove sections to improve airflow. Precision is key to avoid damage.
- Reassembly: Put everything back together securely. Double-check all connections.
- Testing: Run the cart to assess changes in sound and performance.
- Expert Tip: Be cautious with modifications. Even small changes can impact the exhaust system’s functionality.
3. Installing Plowman’s Performance Kit
- What I Did: Fitted the Plowman’s Performance Kit, including a machined clutch, belt, and air filter.
- Outcome: Boosted low and mid-range torque, with a slight increase in noise.
- Personal Experience: The kit significantly enhanced the cart’s performance, especially on challenging terrains.
- Detailed Steps:
- Kit Selection: Choose a Plowman’s kit that’s compatible with your cart model.
- Installation: Follow the kit’s instructions closely. Install the clutch, belt, and air filter as directed.
- Adjustments: Fine-tune the settings to match your cart’s needs. This might require some trial and error.
- Testing: Take the cart out for a thorough test drive. Pay attention to changes in torque and overall handling.
- Expert Tip: Keep in mind the noise trade-off. While performance may increase, so might the sound level.
Golf Cart Models Where This Worked
- 2020 Yamaha Drive 2 PTV QuieTech
- 2017 Yamaha PTV Quietech
- 2020 Gas EFI Golf Cart