Does a 3 inch exhaust make a difference?

The benefits of a larger 3-inch exhaust system for a performance engine may not be worth the loss in sound quality.
2. However, if the engine is very built-up, and if you race it on the weekends, the larger and louder 3-inch system may be beneficial.

Is 4 inch exhaust too big?

The recommended size for exhaust systems is 3-3.5 inches for 250-350whp. Above that, a 4 inch exhaust is the right size, but that’s about as large as you want to go, even at the 400whp-500whp level.

Is wider exhaust better?

Having a larger exhaust pipe decreases exhaust restrictions. With more size and less restrictions, gasses exit quickly and the pressure build-up is reduced.
2. Having a larger exhaust system, including improved exhaust headers, increases scavenging. This means that spent gasses in the engine cylinder are replaced with fresh air and fuel.

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How long does Aftermarket exhaust last?

A typical life expectancy of a premium aftermarket exhaust system should be two to three years, depending on driving habits and other factors.

2. An aftermarket exhaust system should last around two to three years, depending on driving habits and other factors.

3. A premium aftermarket exhaust system will usually last two to three years, depending on driving habits and other factors.

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How much does it cost to have exhaust welded?

The cost of minor welding on a muffler can range from $30 to $500, depending on the labor rates in your area and the severity of the repair.
2. On average, professional muffler welding costs $280.
3. If you need to weld a new muffler, the cost can be anywhere from $75 to $750.