A "universal" replacement muffler may require:

A "universal" replacement muffler typically means that it is designed to fit a variety of vehicles rather than being a direct match for a specific make and model. This often leads to the need for adjustments and modifications during installation.

Cutting existing pipes is often necessary because the universal muffler may not align perfectly with the original piping. Additionally, pipe adapters might be required to connect the new muffler to the existing exhaust system. New clamps and hangers are commonly needed as well, since the mounting points or sizes might differ from those of the original muffler.

The requirement for these modifications highlights the flexibility and adaptability typically expected from universal parts; they are designed to be customized to fit various applications rather than providing a straightforward, direct installation. This characteristic distinguishes universal mufflers from those that are intended as direct replacements, which would not necessitate such extensive alteration of the existing exhaust system.