Flex pipes allow the engine to move and not crack or rupture what would otherwise be an inflexible metal exhaust pipe. Flex pipes are typically found where the exhaust manifold meets the downpipe or mid-section of an exhaust, which is closer to the engine than to the exit tailpipe.

Similarly, you may ask, is flex pipe good for exhaust?

A flex pipe is flexible piece of pipe that allows the exhaust system some flexibility. Flex pipes are an essential part of any front wheel drive vehicle and on most all wheel drive vehicles.

Furthermore, how much does it cost to fix a flex pipe? In this case as well, there would be the option of having an exhaust shop cut out and replace just the flex pipe, which might come to about $150. The labor time to replace the flex pipe is estimated at 1.3 hours. A factory replacement part costs about $231, and a Walker part costs about $79.

Secondly, how do you know if your exhaust flex pipe is bad?

Here are some tell-tale signs that your exhaust flex pipe is leaking. Loud noises: One of the first signs of an exhaust leak is a loud noise. If there's a crack in your flex pipe, it will cause an excessively noisy engine. Your pipe might be producing a hissing or tapping sound that can get louder when you accelerate.

Can you replace a flex pipe with a straight pipe?

No, never replace a flex pipe with a solid pipe. The reason some cars have a flex pipe and others don't comes down to the material used to make the exhaust and engine position and vibration from the engine.

Related Question Answers

Can you drive with a bad flex pipe?

A broken flex pipe can mess with compression since the exhaust pressure will not be optimal. Anything before the cat that is broken can cause an issue if there is a pressure leak. I would recommend fixing it as soon as you can but it is not something that will destroy your car.

Does a broken exhaust affect acceleration?

If the pipes become damaged or corroded, they can sometimes produce an exhaust leak that can cause the vehicle to experience performance issues. An exhaust leak from a broken pipe can cause the vehicle to experience a decrease in power, acceleration, and fuel efficiency due to the loss of backpressure.

Can you weld flexible exhaust pipe?

Yeah you can weld it to normal exhaust tube, It usually comes in mild steel.

What is the purpose of a flex pipe?

A flex pipe is flexible piece of pipe that allows the exhaust system some flexibility. Flex pipes are an essential part of any front wheel drive vehicle and on most all wheel drive vehicles. Without that extra flex the rocking motion would crack the exhaust system causing a loud leak.

How do I fix a hole in my exhaust?

Method 2 Sealing a Leak with Repair Epoxy or Exhaust Tape
  1. Scrub the area surrounding the leak with a steel toothed brush.
  2. Use sandpaper to prepare the surface of the pipe.
  3. Wipe the surface down with acetone.
  4. Determine if the hole is small enough to be sealed without a patch.
  5. Wrap the exhaust tape around the pipe.

Can you wrap a flex pipe?

Reasons to Wrap your Exhaust Flex Pipes Separately

As for wrap longevity, wrapping a flex pipe with a separate piece of exhaust wrap will help prolong the life of the wrap because it helps guard against unnecessary replacement.

How is exhaust flex pipe made?

Due to this, when an exhaust system needs to bend, shift or be flexible, the manufacturer cannot use traditional materials like rubber. The flex pipe is made of metal strips woven into a lattice, and thus can withstand exhaust gas heat. Higher quality flex pipes will be made of stainless steel.

Does AutoZone sell exhaust pipe?

AutoZone offers a wide selection of custom-designed exhaust pipes, so whether you're searching for Jeep Wrangler exhaust pipes or exhaust piping for Chevy Camaro, we've got everything you need for your exact make and model.

Should you heat wrap headers?

Header Wrap keeps the heat in the pipes. This improves exhaust flow and The Scavenging Effect. It also lowers underhood temps. Wrapped headers will make a little more Torque and Horsepower than a bare metal set.

What is the mesh part of an exhaust?

It isolates the engine's vibration from the exhaust system and helps prevent a cracked exhaust manifold. Yours will blow out in time due to the mesh fraying out of it.

How do you bend an exhaust pipe at home?

Bending the exhaust tube yourself is a delicate process but entirely feasible with the right equipment. Fill the pipe with sand to prevent crimping when you bend it.

  1. Step 1 – Design Pipe.
  2. Step 2 – Create Squash Pipe.
  3. Step 3 – Flatten End of Bending Pipe.
  4. Step 4 – Weld Squash Pipe to Exhaust Pipe.
  5. Step 5 – Heat Pipe and Bend.

How do I find a exhaust leak?

Find an Exhaust Leak Without Burning Your Hands!
  1. Step 1: Connect the Vaccum Cleaner. This step is easy, just duck tape the pipe of the vacuum to the tail pipe of the exhaust and switch on.
  2. Step 2: Find the Leaks. Now use a stethoscope (a funnel jammed in the end of a piece of flexible tube) to listen for leaks.
  3. Step 3: Leak Found!

Can you drive with an exhaust leak?

Driving with an exhaust leak is potentially dangerous as the fumes contain carbon monoxide. An exhaust leak can decrease fuel efficiency, causing your engine to work harder, and you to fill up your gas tank more frequently. A third sign your exhaust may be leaking is if your gas pedal vibrates while you are driving.

Does removing mufflers increase horsepower?

Removing the muffler will significantly increase the exhaust flow while reducing harmful engine back-pressure. In most cases, a muffler delete system or a set of aftermarket mufflers (or axle-back mufflers) may do more harm than good and result in less horsepower.

Will cracked exhaust manifold damage engine?

This can damage plastic components in the engine bay. There's also the possibility that it will affect engine performance. If your exhaust manifold is cracked or leaking, the back pressure in the exhaust system will be incorrect, which can reduce engine power, cause sputtering and other problems.

What does a bad flex pipe sound like?

If there's a crack in your flex pipe, it will cause an excessively noisy engine. Your pipe might be producing a hissing or tapping sound that can get louder when you accelerate.

Can you drive with a broken flex pipe?

A broken flex pipe can mess with compression since the exhaust pressure will not be optimal. Anything before the cat that is broken can cause an issue if there is a pressure leak. I would recommend fixing it as soon as you can but it is not something that will destroy your car.

Can I use flex tape on my exhaust?

Since Flex Tape works on a variety of surfaces – including metals – it's been a go-to tool for repairing automobiles. That includes cars, trucks, ATVs, and more. *Flex Tip: Make sure your surface is clean. Flex Tape works on both dry and most wet surfaces (even underwater).