Answer: Removing the Y pipe and converting your truck’s current “single” exhaust system into a “dual” system will cause a smog check failure. The smog technician will consider the modification you’ve made as a “tamper”. On a 2003 true dual exhaust is perfectly legal .
Is single or dual exhaust better?
However, most would agree that a dual exhaust will give you better performance gains compared to a single exhaust system. Because the exhaust gases exit each manifold through two pipes rather than just one, they can exit the engine faster and provide additional horsepower gains.
Can you put dual exhaust on a 4 cylinder?
You cannot have true duals on our 4 cylinder . It simply can’t be done. There is only one manifold. it would be a waste to do anything more than a single in/dual out muffler.
Do you need two mufflers for dual exhaust?
you still only need one muffler if its a dual in/dual out, or a single in/dual out. you will need 2 mufflers if you get a single in /single out.
Can you put a dual exhaust?
Dual exhausts can be applied to many vehicles that don’t come dual from the factory . Some vehicles also come with a factory dual exhaust but many times it is too quiet due to stock, restrictive, mufflers. Dual exhausts can be run on almost every single pickup truck and many cars and SUV’s.
How much HP does dual exhaust add?
Most manufacturers of aftermarket dual exhaust systems claim an increase of 15 to 20 percent in horsepower (hp). A car producing 190 hp, for example, could potentially see an increase to over 225 hp, an impressive gain. Adding headers generally adds another 20 to 20 hp.
What is louder 2.5 or 3 inch exhaust?
3′′ should be louder than 2.5′′ if all parts are the same. If the muffler is raspy, you’ll hear more rasp at 3′′.
Is a dual exhaust louder than a single?
Dual exhaust will sound louder than single exhaust and it will also improve your vehicle’s power. But, it will add extra weight to your car. Getting single or dual exhaust also depends on the type of engine your car is running.
What is the loudest type of exhaust?
There are three types of mufflers: glasspack , turbo, and chambered. Glasspack is the loudest, and you should check the noise pollution laws in your state before buying one.
What is a true dual exhaust?
A true dual exhaust system provides each head and exhaust manifold with its own separate exit allowing double the amount of exhaust to be forced out of the engine . As a result, you will likely notice an increase in horsepower.
Does dual exhaust improve gas mileage?
Increased Gas Mileage: The engine in a dual exhaust vehicle runs more efficiently and with less effort . ... The more efficient the engine, the slower the rate at which the fuel burns, which means that you don’t have to use as much fuel as you would with a single exhaust system to go the same distance.
Does dual exhaust tip change sound?
Exhaust Tips and Exhaust Sound
The shape and width of the exhaust tip can slightly change the sound to be either more throaty (larger tips) or raspy (smaller tips). Double-walled muffler tips tend to add a full-bodied sound. On their own, though, muffler tips will have a minimal effect on exhaust sound.
Does dual exhaust need two catalytic converters?
A vehicle with a dual exhaust will have two catalytic converters and mufflers . ... The purpose of an exhaust system is to remove the left over air and fuel mixture from the cylinders so that the next cycle can begin. Dual exhaust systems can accomplish this more quickly.
How can I make my dual exhaust louder?
- Replace the muffler with one designed to amplify the sound of your vehicle. ...
- Add a sound-amplifying exhaust tip.
Is it hard to install dual exhaust?
Installing a dual exhaust system is pretty straightforward. It is a good idea to ask someone to help you . An extra pair of hands will come in handy when it comes time to position the new pipes together.
How much horsepower will straight pipes add?
As stated in the intro, a correctly designed and tuned exhaust system can increase torque and horsepower across a wide range of the power band. While this gain usually isn’t “big” – we’re talking about a 2-3% increase – the modification offers a few benefits: An exhaust upgrade is relatively cheap.
