Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

Why isn't the sound loud after modifying the exhaust?

1 Answers

MaryDella

07/30/25 8:25am

Modified exhaust doesn't sound loud because the muffler hasn't been removed. It's recommended to remove the muffler and then rev the engine in first gear to definitely get a louder sound. Introduction to Automotive Exhaust Systems: The automotive exhaust system primarily discharges waste gases produced by engine operation while reducing pollution and noise from the emitted exhaust. Automotive exhaust systems are mainly used in light vehicles, micro-cars, buses, motorcycles, and other motor vehicles. Sources of Automotive Noise: A car is a comprehensive noise source comprising various types of noise with different characteristics. Since none of the noise sources in a car are completely sealed (some are only partially sealed), the overall noise radiation from the vehicle depends on the sound levels, characteristics of each source, and their interactions.

Was this review help?

13

4

Share

More Forum Discussions

How to Open the Front Hood of an Old Focus?

The method to open the front hood of an old Focus is: 1. Rotate the emblem on the front of the car upwards to reveal the keyhole; 2. Insert the key and turn it counterclockwise by 90 degrees; 3. Release and turn it clockwise by 90 degrees; 4. Gently lift the front hood by hand; 5. After opening, locate the support rod for the front hood and prop it up to complete the process. The Focus is a compact car under Ford. Taking the 2005 Focus Manual Classic as an example, its body dimensions are: length 4480 mm, width 1840 mm, height 1500 mm, with a wheelbase of 2640 mm. It is equipped with a 1.8L naturally aspirated engine, delivering a maximum power of 91 kW and a maximum torque of 161 Nm, featuring MacPherson independent suspension and multi-link independent suspension.

What does it mean when the car indicates it's time for maintenance?

The reason the car indicates it's time for maintenance is that the vehicle has reached its maintenance cycle, and the owner needs to perform maintenance promptly. The solution is to promptly visit the car's 4S shop for maintenance, after which the maintenance reminder light can be turned off. If the issue persists, it is advisable to seek help from a maintenance technician to disable the maintenance reminder. Typically, the car will give a reminder one or two thousand kilometers in advance, and the owner can choose to have it cleared after maintenance at the 4S shop. Common car maintenance items include: engine oil, oil filter, fuel filter, air filter, and cabin air filter. Car manufacturers provide a regular maintenance schedule for each vehicle upon leaving the factory, with maintenance items and cycles usually based on mileage. The purpose is to achieve optimal performance and extend the vehicle's lifespan through regular maintenance.

How to Perform a Pivot Turn in a Land Cruiser?

The tutorial for performing a pivot turn in a Land Cruiser is as follows: 1. Shift into P or N gear and activate the low-range four-wheel drive mode; 2. Shift to D gear, engage the crawl control mode, and release the brake; 3. Once the vehicle enters automatic driving mode, turn the steering wheel to a certain angle, then use the speed button to control the speed and complete the pivot turn. Taking the Land Cruiser 2016 model as an example, its body dimensions are: length 5095mm, width 1975mm, and height 1930mm. The Land Cruiser 2016 model is equipped with a 4.0L naturally aspirated engine, with a maximum power of 202kW and a maximum torque of 385Nm, paired with a 5-speed automatic transmission.

Why can't the BYD one-button start ignite the engine?

The reasons why the BYD one-button start cannot ignite the engine may include the following: 1. Key demagnetization: Frequently placing the car key near electronic devices such as mobile phones, computers, or TVs can interfere with the low-intensity radio waves in the key. Alternatively, if there are strong radio waves nearby, such as from TV towers, airports, or power plants, the one-button start may "fail." 2. Car key battery depletion: If the key shows signs like reduced remote control distance or decreased sensitivity, it is a warning that the key battery is running low. In a state of battery depletion, the one-button start function cannot operate properly, and the battery should be replaced as soon as possible. 3. Vehicle malfunction: In extreme cases such as fuel system issues, dead battery, or electronic component short circuits, it is advisable to directly call the 4S store staff for assistance.

How to Cancel the Maintenance Wrench Light on the Aveo?

The method to cancel the maintenance wrench light on the Aveo is: 1. Insert the key; 2. Press and hold the background light adjustment button on the lower right side of the display screen; 3. Turn the key to the second position, and during the self-test, keep holding the button without releasing; 4. After about 10 seconds, the 'INSP' will disappear, and the small wrench will automatically be removed, completing the process. The Aveo is a compact car under the Chevrolet brand. Taking the 2014 Aveo Comfort Edition as an example, its body dimensions are: length 4378 mm, width 1735 mm, height 1517 mm, with a wheelbase of 2525 mm. It is equipped with a 1.4L turbocharged engine, delivering a maximum power of 76 kW and a maximum torque of 131 Nm, and features a MacPherson strut independent front suspension and a torsion beam non-independent rear suspension.

Why Can't the Car Door Be Opened from Inside or Outside?

The reasons why a car door cannot be opened from inside or outside: 1. The central locking system is not unlocked. The solution is to press the central locking switch on the driver's control panel to unlock it. 2. The child lock on a particular door is activated. The solution is to open the door from the outside, observe the side of the door where there is a child lock, and toggle the switch to deactivate the child lock. Reasons why the car key's unlock button does not respond: 1. The car key battery is dead and needs replacement. 2. If near places like airports or radio transmission towers, strong radio interference may prevent the car from successfully receiving the key's signal. 3. Damaged components in the car key may prevent normal operation. 4. The vehicle cannot receive the signal due to being too far away. 5. The car battery might be dead.

Trending Ranking

What happens if you go straight in a turning lane?

What does a triangle with an exclamation mark on the car's dashboard mean?

What Causes Automatic Daytime Running Light Control Failure?

What Does the A on the Car Mean?

What are the body dimensions of the Hongqi HS7?

How Often Should a Car Clutch Be Replaced?

How many cylinders does the Bestune T77 engine have?

Which consumes more fuel, 1.5T or 2.0L?

What is the reason for the electronic fan not working when the air conditioning is turned on in the Buick GL8?

How to reset the maintenance light on the Geely New Borui?

More Forum Discussions

Can a New Car Be Driven on Long-Distance Highways Immediately?

What Are the Reasons Why a Duplicate Car Key Fails to Start the Engine?

What is the appropriate tire pressure for Buick vehicles?

Why Can't the Car Key Open the Door?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.