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”. You must keep the original exhaust system configuration designed by your vehicle’s manufacturer.
People also ask, can you change a single exhaust to dual?
If you have dual exhaust tips to a single exhaust, your vehicle will look great, but it’s not doing anything to increase power. Dual exhaust will give you a significant power increase because of the engine’s ability to breathe better. Thus, if you are trying to increase horsepower, dual exhaust may be worth the cost.
Similarly, is true dual exhaust illegal?
On a 2003 true dual exhaust is perfectly legal. What makes it illegal is if your exhaust Y pipe is before the cats, but yours is after.
Likewise, 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.
What are the benefits of dual exhaust?
Pros of a Dual Exhaust System
Increased Gas Mileage: The engine in a dual exhaust vehicle runs more efficiently and with less effort.
More Engine Horsepower: Burned engine exhaust gases exit the combustion chamber faster and easier than a single exhaust system because it has two exit pipes instead of one.
30 Related Question Answers Found
How much is dual exhaust?
Exhaust System Parts Costs Most after-market exhaust companies offer four types of components: Cat-back exhaust systems – anywhere from $300 to $1200 – The final cost will depend on steel thickness and type, as well as muffler quality. Axle-back exhaust systems – same as above.
How much horsepower does dual exhaust add?
Anywhere from 0 to maybe 4 percent , depending on the engine and the design of the new exhaust system. The dual exhaust will generally weigh more than the single, so that is a performance disadvantage.
What is a true dual exhaust?
Basically, a dual exhaust system allows the engine to breathe better creating a more complete combustion cycle from the engine. 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.
Does straight pipe exhaust increase horsepower?
The biggest reason that many people opt for a straight pipe exhaust is that these systems enhance your car’s horsepower. You get better fuel economy and slightly better horsepower. However, the size of the pipe is important. You can’t just go and get a thick pipe for your car.
How do you install dual exhaust?
Installing a dual exhaust system is pretty straightforward. Step 1: Select and Purchase a Dual Exhaust Installation Kit. Step 2: Raise the Vehicle. Step 3: Remove Existing Exhaust System. Step 4: Install Exhaust Part. Step 5: Measure. Step 6: Check Alignment. Step 7: Tighten Clamps. Step 8: Test it.
Can you put dual exhaust on a v6?
One option to converting to dual exhaust is to use a V6 specific mid-pipe. Designed to eliminate the single pipe design of the factory y-pipe, these bolt right up to the factory manifolds and give you a true dual exhaust. Because this conversion gives you a true dual exhaust, you will have noticeable performance gains.
How much horsepower does an exhaust add?
Horsepower is calculated by multiplying torque by RPM. Therefore, if a new exhaust system adds just 10 lb-ft of torque at 5,000 RPM, that will result in a horsepower increase of 9.5 hp.
Do dual exhaust tips change 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) (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 straight pipe damage engine?
A straight pipe, for example, can cause exhaust gas velocity to increase. This will likely reduce engine performance below 2,000 or 2,500 RPM, making your vehicle a little slower to launch from a stoplight.
Does bigger exhaust give more power?
Maximum torque and low rpm performance are favoured because this is what makes the biggest impact for normal day to day driving. A larger exhaust changes the shape of the power curve. It makes it more peaky, but the area under the curve is reduced. Average power is less but peak power is more.
Is true dual exhaust louder?
The simple answer is yes, any true dual system is louder than the same system that has a crossover pipe. A crossover pipe does two things, it increases torque & it changes the frequency of the sound. There are twice as many exhaust pulses in both pipes with a crossover.
Does dual exhaust make truck louder?
If you use high-quality products to enhance the sound of your truck, it will not only increase the sound; your vehicle will gain in horsepower and engine efficiency. A truck with dual exhaust system will have a booming sound when travelling down the road.
Does cat back exhaust make a difference?
The cat-back exhaust or a catalytic converter-back exhaust system increases both horsepower and fuel efficiency of an engine, but there are also many cosmetic benefits such as louder exhaust and a more stylized look. Traditional exhaust systems are designed to be low key: quiet, unassuming, and restrictive.
Do performance mufflers add horsepower?
Replacing your car’s muffler alone is not enough to open up the restrictive exhaust system and allow the extra airflow that increases performance. MagnaFlow, an aftermarket exhaust manufacturer, says that its customers can expect horsepower gains of around 10 percent (which is a pretty commonly-quoted figure) (which is a pretty commonly-quoted figure).