Tip size actually has very little to do with sound, unless you go to a much larger or smaller diameter. Smaller diameter pipe will restrict the engine, slowing the exhaust stream and decreasing engine noise, and a larger diameter tip will make the engine louder only if the original tip was a restriction.

Does a bigger exhaust tip make a difference?

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.

What size exhaust tip should I get?

Inlet Size

The inlet size of your exhaust tip must match the diameter of your existing tailpipe for a proper fit. ... For example, if your tailpipe has a 3″ diameter, choose an inlet diameter of 3″. Remember, your tailpipe may already have a tip, so be sure to measure the tailpipe, not the old tip.