What causes raspy exhaust?

This is caused by the increased flow of the exhaust gases. A raspy sound may emit from your performance muffler from time to time. It is important to understand how to get rid of this sound to prevent from further problems occurring.
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Why does my car sound raspy when accelerating?

Crankshaft bearing noise is also caused by low oil pressure which damages the bearing surfaces and could eventually damage the crankshaft itself. This type of noise is usually described as a rumbling or thumping sound deep in the engine when accelerating.
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How can I make my exhaust sound smoother?

  1. Step 1: Replace the Muffler. Factory installed mufflers are designed to absorb as much sound as possible. ...
  2. Step 2: Add or Replace Exhaust Tip. An exhaust tip is an inexpensive addition that is plug and play. ...
  3. Step 3: Have the Exhaust Tubing Evaluated. ...
  4. Step 4: Consider a Turbocharger.
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Will a resonator reduce rasp?

Luckily, installing an exhaust resonator can assist in reducing the rasp. Much like a muffler, a resonator is dimensioned to reduce the noise from the engine as the exhaust gases pass through its chambers.
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Why does my exhaust sound like a tin can?

Spooky Noise #5: Rear Rattling

If your rear window doesn't read “Just Married” and you still hear a sound like tin cans tumbling from behind, your exhaust system may need a tune up. Your car's exhaust system is made up of five pieces: the exhaust manifold, catalytic converter, resonators, muffler, and pipe.
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THE Problem with Nissan Infiniti Cars | RASP and how to fix it!



Why does my muffler sound like it has rocks in it?

A failing catalytic converter: Even when your car has the part, its performance decreases with time. Once the catalytic converter needs to be replaced, your muffler sounds like it's filled with rattling rocks, especially when you're waiting in traffic.
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Why does it sound like rocks in my exhaust?

The heat shield is the part of your exhaust system which helps to dissipate the heat being produced by the engine. If this part gets loose, it makes a rattling noise sounding like rocks bouncing around in your muffler.
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Does resonator Delete make car raspy?

1. It will change the sound profile of your exhaust. Many vehicles experience a deeper, more authentic sound when equipped with a resonator delete package. Since the main function of this device is purely cosmetic, nothing happens to your vehicle when changing the noise profile.
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What do resonators on an exhaust system do?

The resonator is a complement to the muffler in that it removes high-pitched noises along with annoying hums and buzzes. It creates a smoother exhaust note, but doesn't affect volume. The resonator is designed to eliminate sounds at a particular frequency which bounce off the inside of the device canceling each other.
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Does stainless steel exhaust sound better?

Stainless exhausts generally sound similar or identical to mild steel exhaust. The difference is that stainless systems are mandrel bent, which allows for better flow. Stainless exhausts are a great choice for cost-effective products, but you'll need to ensure that you're getting what is advertised.
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Can exhaust tips change sound?

Exhaust tips, since they are literally at the tailend of the exhaust system, will make a car have a more powerful sound. But a normal tip typically will have a small effect on the exhaust sound. A larger tip will give the engine a stronger, hearty sound, while a small tip will produce a raspy sound.
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Why does my exhaust make noise when I accelerate?

If you have a car with active exhaust, it's possible that the rattling noise that you hear when accelerating is caused by a component of the active exhaust system. The flaps in the exhaust might not be opening all the way, or they might be loose and rattling as they flap open and close uncontrollably.
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When I step on the gas my car makes a noise?

Low fuel pressure, dirty or leaking fuel injectors, a failing or dirty mass air flow sensor, and many other possibilities can cause an engine to struggle.
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Why does my car sound like a lawn mower?

If your car sounds like a lawnmower, it is likely that you have a leak somewhere in your exhaust system. An exhaust system leak could come from a many different areas in your Kia. There are several parts including gaskets, pipes, hoses, catalytic converters, or the manifold that could need to be repaired or replaced.
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Does removing resonator increase horsepower?

A resonator delete can also reduce your engine efficiency. It affects the back pressure of the exhaust gases, which may amount to more fuel consumption. So, a resonator delete can give your vehicle a slight increase in horsepower.
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Should I delete my resonator?

It depends. Generally, resonator delete is not illegal in most places; that means you are at liberty to modify your car's exhaust compartment to your taste. If you choose to remove the muffler and the resonator to make your vehicle sound louder, it is your choice.
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Which is better muffler delete or resonator delete?

1. Sound Quality. In terms of sound improvements, if you have to remove one, deleting the muffler is a much better deal than deleting the resonator. Because muffler dampens the sound across RPM, you'll get a louder, raw sound coming out of the engine.
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Is a muffler delete louder than a straight pipe?

It often lacks a catalytic converter and muffler, allowing all the noises produced by your engine and the rear of your vehicle to be heard. This is why automobiles equipped with a straight pipe exhaust system are louder than stock vehicles.
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Are resonators worth anything?

Resonators are used to help lessen the noise that is coming out of the engine and exhaust. They act as silencers to help eliminate noise pollution and have no precious metal value.
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Why does it sound like gravel is hitting my car?

The "rocks rolling around a tin can" sound is most commonly from the exhaust system. Possibly a broken / loose baffle in the muffler or resonator. Most commonly would be a heat shield on the front pipe or catalytic converter.
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Is it safe to drive with a rattling exhaust?

Driving with a loud muffler is potentially dangerous. If your muffler is loud because of a hole, rust, or other defect, carbon monoxide may be getting into the cabin of your vehicle. Carbon monoxide can be dangerous to you and your passengers.
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What are the symptoms of catalytic converter failure?

Catalytic Converter Maintenance

Sluggish engine performance. Reduced acceleration. Dark exhaust smoke. The smell of sulfur or rotten eggs from the exhaust.
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Why does my car sound like it's crumbling?

Like most rubber parts on a car, these can get brittle and break down over time. For this reason, bad bushings are often the culprit when it comes to these types of sounds. However, it may also be a bad sway bar link or possibly worn struts, shocks, or ball joints.
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