I'm looking to replace my stock mufflers with some MagnaFlow ones. I've done some searching and found some dimensions but I just want to double check that they're right.

I found 2.25 in. inlet, 2.25 in. outlet, and 18 in. length (24 in. overall). Is this right?

Here's a link for the part on MagnaFlow's site:
MagnaFlow Exhaust Products - For Trucks, Suv's, American Muscle, Diesel, & Sport Compact Vehicles

Also, I took out my resonator and replaced it with a straight pipe. I'm looking for a deeper sound for a cheap price with these mufflers. If someone has heard them on a 3800, how do they sound? Is it worth it?

 

I am wanting to do the same but with a Borla system and I read the 2.25in in and out in a different thread but beyond that I have no clue either