Flowmaster 50 series "Delta" or "SUV": Whats the diff?

[Aquinoheat]

I'm about to get a new muffler installed and I'm curious to know whats the differences between the two. Thanks a lot!

 

[celly]

Google is your friend.

I think Delta Flow is a bit quieter in the cab. If you need a dual inlet (I don't think you do on the '01 but I did on my '00), then SUV is the only way to go.

Here's what Flowmaster says:

"The SUV/Performance muffler is a larger version of Flowmasters 50 Series Delta Flow muffler and is specially designed for trucks, light SUVs and high horsepower vehicles."