Do a quick search. Lots of info.
Fyi you're not going to get a power gain that you can feel, or an efficiency change with a muffler. However, of you two options, the Magnaflow is straight through design. So for what you're looking for, that's your best chance.
I have the 22'' Maggie and love it. I would consider a flowmaster however. Mine is almost stock sounding at idle, but I swear it sounds like straight headers when I get on it... lol
- Sent via Tapatalk for Android