With gains up to 30-35 HP for many cars (Mustang, Challenger, Camaro, Corvette, etc.), the right axleback or catback exhaust can really rev up your car’s performance.
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Are axle back exhausts worth it?
The only downside to the axle-back is that it does not improve your exhaust flow, is a purely a sound mod. If you want to improve your exhaust flow without adding expensive headers or removing your catalytic converters, a catback is going to give you the flow you want, along with a better exhaust note.
What does axle back exhaust include?
What is an Axle Back Exhaust System? It’s the muffler, pipes, and all associated parts as far back as the rear axle. Large and attractive muffler tips fall into this product category, as do the short sections of pipe that couple to the mid or intermediate pipe.
How much does a axle back exhaust cost?
There are two main types of exhaust systemsโthe cat-back exhaust systems and the Axle-back exhaust systems. Like we’ve already mentioned, acquiring any of these exhaust systems will cost you between $300 and $1200. The overall cost depends on factors like material used, type of exhaust, and muffler quality.
Will a cat back exhaust pass inspection?
Catback exhaust systems are completely legal in the State of California because the modification starts after the catalytic converter and does not affect any of the emissions control components of your vehicle.
Is cat back or axle back louder?
While cat-back exhaust systems generally offer louder and more aggressive notes comparatively, an axle-back exhaust will always be less expensive, making it a great starting performance mod for new car enthusiasts not looking to break the bank.
Will a cat back exhaust increase gas mileage?
Better Fuel Economy The cat-back system improves airflow, which means the engine doesn’t work as hard to eliminate exhaust fumes. The reduced resistance minimizes the load on the engine, which leads to less fuel consumption.
Is axle back same as muffler delete?
Muffler delete is no muffler, just straight pipes. This will absolutely drone and sound terrible. Axle back is a replacement of the stock muffler.
Is a cat back exhaust loud?
Straight through cat-back systems have mufflers of minimal size with fewer baffles. This creates a louder sound and a low amount of restriction.
Does an H pipe make a difference?
“An H-pipe tends to make more of a difference at lower rpm, while-X pipes will increase power more at higher rpm. As you can imagine, just by looking at each configuration, in the H-pipe the exhaust has to make a sharp 90-degree turn, while the X-pipe offers a smoother transition,” he says.
Will an axle back exhaust void warranty?
No it does not. They can only refuse warranty service on a part that can be directly linked to harm by a modification you’ve done. I can’t see an axle back exhaust doing any harm to anything except maybe melting your bumper or something.
Does Borla axle back exhaust increase horsepower?
BORLAยฎ’s patented flow through design and proper diameter mandrel bent tubing evacuate the exhaust gases out the system much faster and at a much greater temperature than factory exhaust. This results in performance gains in HP when you plant your foot and fuel economy at cruising speeds.
Do exhaust tips change sound?
Exhaust tips, since they are literally at the tailend of the exhaust system, will make a car have a more powerful sound. But a normal tip typically will have a small effect on the exhaust sound. A larger tip will give the engine a stronger, hearty sound, while a small tip will produce a raspy sound.
How can I make my car louder?
- Get a new muffler. If you put a smaller muffler on your car, it will be much louder, especially when you accelerate.
- Upgrade your engine.
- Drill holes in your exhaust.
- Get an exhaust tip.
- Make your exhaust pipes bigger.
How can I make my exhaust louder?
Use A Cold Air Intake to Help Make Exhausts Louder While some OEM air intakes are now designed to bring air into the vehicle from the outside, aftermarket cold air intakes reroute how your car sucks in air, pulling it from outside the compartment.
Will a cat back exhaust void my warranty?
A cat back exhaust may void the warranty, but only if it destroys other components covered by your Ford warranty. As long as you get the mod done professionally, you shouldn’t have to worry about voiding the warranty, as you’re covered under the Magnuson-Moss Warranty Act of 1975 per the federal government.
Will aftermarket exhaust fail smog?
Most exhausts that start from the catalytic converter will pass emissions tests because the only thing that has changed is the final sound of the exhaust. Technically some aftermarket exhaust that start from the engine and use catalytic converters can be very efficient as well.
Can Catback pass smog?
Answer: No problem installing a cat back exhaust system. The smog inspection does not inspect the muffler or exhaust system after the CAT. The catalytic converter, on the other hand, is inspected and must conform to your vehicle exact year, make, model and engine size.
Is a cat back exhaust a straight pipe?
Is a cat back exhaust a straight pipe? A cat back exhaust and a straight pipe are not the same thing unfortunately. Straight piping a vehicle generally requires removing the catalytic converter, and a cat back exhaust by definition leaves the catalytic converter in place, and replaces everything behind that point.
What’s the difference between axle back and Catback?

What does cat back exhaust do?
A cat back exhaust system is a relatively simple auto modification that will free up your exhaust gas flow and produce a unique engine tone that is more pronounced than your stock muffler.
Does a cat-back exhaust need a tune?
They may let more sound flow through, but CB systems do not affect the aspiration of the engine. As a result, Cat-Back exhaust systems do not require an updated tune.
How much HP does a cat-back exhaust add?
A cat-back exhaust will likely improve your vehicle’s performance, including its horsepower. Generally speaking, a cat-back exhaust system can add up to 5 HP, along with boosting the overall performance of your vehicle.
How can I double my gas mileage?
- Go Easy on the Pedal. Speeding, braking, and rapid acceleration waste gas.
- Slow Down. Gas mileage efficiency tends to decrease above 50 miles per hour.
- Leave Extras at Home.
- Use Cruise Control (When Appropriate)
- Turn off the Car.
- Check Tire Pressure.
- Replace Spark Plugs.
- Check the Alignment.
Can straight pipes ruin an 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.