How to Replace a Catalytic Converter With a Straight Pipe

It is not unusual for a catalytic converter to break down. However, this can be a major concern since several cars’ catalytic converters are pretty expensive.

Thankfully, you can replace this device even with a straight pipe. The replacement process can be challenging, particularly for those with no previous experience.

Hence, in the article, I am going to outline a method that is both easy to understand and will effectively replace the converter with a straight pipe.

Let’s get right to it!

Things To Consider Before Replacing A Cat With A Straight Pipe

The following 3 factors should be taken into consideration before installing a straight pipe.

• First, straight pipes are not legal in all states, so be sure to check your local laws.
• Second, removing your catalytic converter will likely void your vehicle’s warranty.
• Finally, straight pipes can actually increase emissions, so make sure you are prepared for that possibility.

If you still decide to replace your catalytic converter with a straight pipe, proceed to the next section.

How to Remove Catalytic Converter and Replace with Straight Pipe: Step by Step Guide:

Step 01- Lift Your Car

Raise your vehicle off the ground and secure it with jack stands.

Step 02- Find the Cat

Locate the catalytic converter. It is usually positioned between the engine and the muffler along the exhaust pipe.

Step 03- Cut the Converter

Cut the catalytic converter open with a sawzall or other type of saw. Avoid damaging the exhaust pipe.

Step 04- Clean the Area

Remove the catalytic converter and clean out any debris from the exhaust pipe.

Step 05- Put the New Pipe in Place:

Install the new straight pipe in place of the old catalytic converter. You may need to use clamps or weld the new pipe in place.

Step 06- Examine the Newly Installed Pipe

Lower your vehicle and start it up. Check for any leaks and make sure the new pipe is securely in place.

Step 07- Take a Test Drive

Try driving your vehicle to ensure everything is working correctly.

What Happens If I Replace My Catalytic Converter with a Straight Pipe or Test Pipe?

If you replace your catalytic converter with a straight pipe or test pipe, it is possible that your vehicle will no longer meet emissions standards.

Additionally, there may be more noise produced by your vehicle than before, and you may experience less fuel efficiency (in some cases).

The main reason people consider installing a straight pipe is to boost their engine’s performance.

Is a Straight Pipe the Same as a Cat Delete?

No, a straight pipe is not the same as a cat delete.

A cat delete involves removing the catalytic converter from your vehicle entirely, while a straight pipe installs piping with the same diameter as the catalytic converter.

Installing a straight pipe may not produce as drastic of an increase in engine performance as a cat delete, but it is a less expensive option and may still provide a slight boost in power.

How Much HP Does Straight Pipe Add?

The amount of horsepower that a straight pipe can add to your vehicle depends on a number of factors, including the model of your car. In general, you can expect a slight increase in power when you install a straight pipe.

For example, installing a straight pipe might increase your horsepower by 5 to 10% if your vehicle has a four-cylinder engine.

On the other hand, if your car is powered by a V6 or V8 engine, you might see an increase of 15-20%.

Why Would I Want to Replace My Catalytic Converter with a Straight Pipe?

There are a lot of benefits a straight pipe provides over catalytic converters. I will highlight five of them below.

1. Better Performance

A catalytic converter can restrict exhaust gas flow, leading to a loss of power.

Replacing the converter with a straight pipe means there will be no more restrictions on the exhaust system. As a result, the engine performance will improve.

2. Money-saving

Another reason people choose to install a straight pipe is that it is cheaper.

Catalytic converters can be extremely expensive for some cars. Instead of spending a fortune on a new cat, you can simply install a straight pipe for a fraction of the cost.

3. Enhanced Sound

Who isn’t fascinated by the exhaust’s loud growling sound? Not sure about you, but I am certainly a fan of that.

Unfortunately, a catalytic converter cannot produce that kind of sound. It muffles the noise instead, turning your car into a quiet machine.

With a straight pipe, you can intensify your vehicle’s sound and hear it every time you rev it.

4. Aesthetic Appearance

Several straight pipes are available with stunning chrome finishes. Installing one of these improves not only the performance of your car but also enhances its appearance.

You also have the choice of welding the pipe differently to give it a distinctive look.

5. Lightweight

The lighter weight your car has, the faster it accelerates. Having a catalytic converter along with the muffler makes your ride heavier.

You will remove both of these components while installing the straight pipe. This way, you will be able to reduce a fair amount of weight from the car.

Are Straight Pipes Worth It?

It depends. If you are simply looking for a way to reduce emissions from your vehicle, then a straight pipe may be a good option and yes it’s worth it.

However, if you are concerned about the cost of replacement, then you may want to consider another option.

Conclusion

If your catalytic converter fails, you may substitute a straight pipe for it. And to do so, you must follow the steps I described in the article correctly.

FAQ’s:

While this may be cheaper than buying a new catalytic converter, it is essential to remember that straight pipes are not emissions-compliant in most states. Hence, check your local laws before proceeding.