13 Products
Collection: Mufflers
SPELAB Performance Exhaust Muffler
An exhaust muffler is a component of the exhaust system designed to reduce the noise produced by the engine's exhaust gases. The main functions of an exhaust muffler are as follows:
Noise Reduction |
The primary purpose of a muffler is to dampen and reduce the noise generated by the exhaust gases as they exit the engine. |
Backpressure Regulation | A properly designed muffler also helps regulate backpressure within the exhaust system. Mufflers are designed to balance noise reduction with maintaining an appropriate level of backpressure. |
Emissions Control | In modern vehicles, mufflers may also incorporate catalytic converters or other emissions control devices. These components help reduce harmful emissions by promoting the conversion of pollutants into less harmful substances. |
Some common types of mufflers include:
Chambered Mufflers | Straight-Through Mufflers | Resonator Mufflers | Performance Mufflers |
When choosing a muffler, it's important to consider factors such as the desired sound level, performance goals, and local noise regulations. Additionally, compatibility with the vehicle's exhaust system and emissions requirements should be taken into account.
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Let customers speak for us
from 2895 reviews
Awesome people and products an I will be using yall on all my builds I got three more trucks to do maybe put some instructions in for none mechanical people would be very helpful I bin working on disel hevy equipment for over 30 years I know where everything gos an how it works just put 2016 engine in 2012 truck just had few changes but all good

Quality product, carefully packed and quickly shipped. Very happy customer here.

I was surprised when I removed the DPF/SCR and replaced it with a straight pipe with a high flow muffler… and it was quiet. But I don’t have to worry about getting pulled over. Easy install, very straightforward. Would buy again. Shipped fast! But if you want louder pipes, consider the straight pipe.

Great product, well made, fit is perfect. Hardware sent is a little short in my opinion so I reused factory hardware. Turned out great.

Great product and comes with everything you need.

In my opinion best bang for your buck and very trustworthy company and had in stock

Great kit but I like the black bracket for the water pipe and exhaust temp sensor.

The installation is easy and smooth.

They make the parts affordable thank the lord, got the website from my mechanic but he never tried them yet- I gave them a shot now I get it

I’ve bought this part two times now for different trucks and it works great highly recommend!

The exhaust sounds amazing. And very easy to install. Only complaint would be packaging. UPS destroys the box when delivered, if there were better Cushioning within the box, less likely to be damaged.

Great Fitment and Fast shipping. Highly Recommend!

The expansion tank fit excellent and looks great. Functions as it should.

All parts arrived promptly and packed well. Installation was smooth and trouble free except for the tube style heater which would not thread into the new intake elbow. The provided plug threaded in fine so will have to revisit that issue before winter.

Overall I was very impressed. Pricing was great, everything I needed was provided. Quality of the parts was good. I would definitely recommend this package when compared to others.