How To Add Back Pressure To Straight Pipes?

Sometimes exhaust pipes carry too much load. This is why engines face some problems like increased pumping work, faulty turbocharger, lessening the boost pressure of the intake manifold, etc. A straight exhaust pipe has no curve or vent. So the gas flows incredibly faster. In this case, you need to add backpressure to the straight pipe to reduce excessive flow.

Adding backpressure has a great impact to increase engine performance and reduce intake manifold damage. In addition, if you experience too much pressure in the exhaust system, it can lessen the pressure.

In some cases, you may face problems with starting your car for extra pressure. It causes great damage to your entire system. To eradicate this hassle you need to implement back-pressure with your muffler.

Steps To Add Straight Pipe For Optimum Backpressure: Easy Approach

Do you want to add back pressure to the straight pipe? But don’t know how do you do that? Here are some simple steps to go. In this section, there is a step-by-step guide so that you can understand the process.

Step 1: Gather Necessary Tools

The prerequisite for starting any work is to keep all the necessary tools and furniture in your collection.  It is very important to keep the useful things with you when you want to install the pipes.  In this case, the tools you need are:

  • Stainless Steel Straight pipe
  • Measuring Tape or scale
  • Pipe fastener
  • Hacksaw or grinding saw
  • Sharp hacksaw blade
  • Pipe Vice
  • Adjustable wrench
  • Safety goggles
  • Hand gloves
  • Face mask and heat resistance gear

Step 2: Setting The Pipe Length

It is important to measure the distance or length of the muffler inlet and the outlet which exists in the catalytic converter. You need to use measuring tape or scale to measure the accurate distance.

You need to increase the distance between the two by at least 4 to 6 inches.  For example, if you get a length of 10 meters then keep 16 meters or 14 meters.  If you do not keep the extra length, you can’t fit the slip joint correctly.

Step 3: Cut The Pipe Accordingly

After measuring thoroughly, now, time to cut it according to the measurement. To cut the pipe accurately, go through the following point.

  • Hold the pipe with a pipe vice or clamp.
  • Take a marker or a pencil and mark to the right length.
  • Then, cut the pipe with a hacksaw putting a new HSS hacksaw blade.
  • Cut the extra edge or border if it exists.
  • Finally, take off the cutting burr with a file.

Step 4: Take Off The Old One

Now, time to remove the old ones which are already worn out. Take your wrench and loosen the nut of the exhaust. Then, take off it from the intake using the full force of your hand. You can take assistance from your family and friends if they are.

Cautious: Please check repeatedly and ensure the pipe is cool enough to hold. If the pipe is hot, your hand or body will be burnt completely.

Step 5: Install The Pipe

Before installing, look at the carburetor or catalytic converter. In most cases, they would also be broken and ruin your entire system too. If you are sure that they are excellent in condition, add the ending part of the straight pipe with them and the tailpipe.

The number of pipes you need to install depends on the type of vehicle. Fasten the pipe joint by welding or any other jointing approach.

Step 6: Adjust Back Pressure

After installing the pipe, align the clamps and tight as much as needed. Before that, make sure you are bending or aligning the pipe accurately.

After that, add back pressure to reduce the extra flow of the fuel and gas. By adjusting the pressure, you now stop over-fuel consumption. 

Step 7: Test The Back Pressure

When you are done with attaching back pressure to the straight pipe, now, test if the pressure is accurate. There are many methods to test and check the pressure level.

4 Reasons Why You Need To Add Backpressure To Straight Pipe

Backpressure can reduce overflowing the gas and keep the engine stable. Moreover, if you add the backpressure to the straight pipe, it can protect the pipe from earlier damage. Here are a few reasons to clarify your idea.

  1. Helps the engine to run at peak efficiency

Engine efficiency is a crucial thing to running your car effortlessly. If the engine goes wrong, your driving experience will be ruined. Adding backpressure means you are extending the efficiency of the engine. As a result, you can’t face any hassle of starting or heating your engine before driving.

  1. Reduce friction between flowing exhaust gas and inner wall

Too much friction destroys the entire piston. As a result, you need to pay extra money for extra fuel. The higher the friction, the more fuel is consumed.The higher the friction, the more fuel is consumed. Fortunately, the standard level of backpressure can reduce friction and make the fuel flow smoothly.

  1. Produce standard exhaust flow

Exhaust flow or gas flow is mandatory to keep your vehicle on track. If the gas flow is too lean, the efficiency of the motor will reduce. Besides, carbon particles clogged in the air filter and exhaust pipe produce harmful gas.

To get rid of all these problems, adding backpressure is your pen friend. So never be late to do this. If so, you are going to lose your car performance.

  1. Increase fuel economy and power

With increasing power and efficiency of the engine, it can simultaneously improve the fuel economy. This is why you can save your extra money to add fuel over time.


Many experts and car owners give their opinion not to add backpressure. But this myth is outdated. There are many benefits of adding backpressure to straight pipe or simply called ‘Y’ Pipe. To make gas flow stable and reduce excessive pressure, there is no substitute to add backpressure. So stay tuned with including backpressure.

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