Can a performance muffler improve gas mileage?
1. Exhaust systems and performance mufflers don’t add power – they improve efficiency. Almost every new vehicle comes with a restrictive factory exhaust system. The reason? Restrictive exhausts are both quiet to the ears and inexpensive to build.
Why are larger exhaust pipes better for fuel economy?
Often an argument for a larger exhaust improving fuel economy is that if it improves power by a few kW then you should be able to get the same power as with the factory exhaust by using a bit less fuel. This isn’t correct. The increase in power output is occurring at high rpm only.
What makes a stock exhaust system so good?
Stock exhaust systems typically feature narrow pipes and tight bends, constricting the flow of gases coming out of the engine. This can back up and choke the engine in its own exhaust.
Is it good to upgrade intake and exhaust?
If you do an intake upgrade, it’s a good idea to upgrade your exhaust. Aside from sound enhancements, it allows your engine to run more efficiently. Following my intake and exhaust upgrades, I’ve seen about a 5% improvement in my fuel economy.
How can I get better gas mileage with high flow exhaust?
In addition to free flowing mufflers, high flow catalytic converters can be used to increase exhaust flow and gain better gas mileage. Gains of 1-2 MPG have been documented when switching to high flow exhaust systems. 1. High Flow Muffler. Replace your stock muffler with a high flowing performance exhaust.
How much does an exhaust muffler improve fuel economy?
Obviously, boosting fuel economy by 2 mpg is going to help pay off a new exhaust system pretty quickly. Bottom Line: Adding an after-market performance muffler or exhaust system will improve engine efficiency from 2-10%.
How does The Flowmaster muffler improve mpg?
The J pipe would seem to a major restriction, an exhaust will not do much to compensate for that, however, a modern SS quality exhaust is likely lighter than stock, so a small weight savings, beside sounding ‘neater’. A little better breathing, not likely to be a significant improvement in power/mileage.
How does an exhaust system affect fuel economy?
So, not only do you notice big increases in MPGs, but you also enjoy more power and a deep, throaty growl. Stock exhaust systems typically feature narrow pipes and tight bends, constricting the flow of gases coming out of the engine.