Types of Universal Mufflers

It can be very confusing to correctly choose the correct internals for universal mufflers. This guide is designed to give a helping hard.

Auspac Mufflers use the highest quality steel wool packing to give the best possible outcome.

In order of loudest to quietest

Straight Through/ Mega Flow : 

Design to give maximum flow and horsepower. These are the least restrictive and are popular for anyone looking to get the most out of your engine.

Chambered/ Straight Through Chambered

These mufflers are similar to Mega flow but have a chamber within the muffler. They reduce engine noise and normally give a "throaty" performance sound on the street. 

Triple Flow/ Turbo

More restrictive than the straight-through design but still allowing good flow through the muffler via a "S" pattern within the muffler

Baffled

The quietest of the muffler internal designs. These have a series of baffles within the muffler to reduce as much noise as possible.

Conclusion

While the type of muffler impacts the overall noise reduction, so does the size of the muffler. A larger muffler will silence the exhaust more than a smaller one. It comes down to available space and the desired outcome,