Wich catback do you guys think will flow better?

hooker 16820
edelbrock 5672
magnaflow with 4th gen custom catback

 

if u're considering moding a 4th cat back the i would go with the SLP LM i mean that's straight through

 

I thought magnaflow only made straight through mufflers

 

The SLP will the the loudest but I recomend the Hooker. Looks good, fits good, and great power I hear.

 

So the magnaflow wont be loud at all with 3in piping and a high flow cat?

 

Magnaflows will be on the rather quiet side, even with a high flow cat. When you get on it, it will be LOUDER, but not as loud as many of the other products out there.(eg. Flowmaster) They are into making power, not noise. Not that I'm saying other aftermarket companies don't make power, but the trend of the street seems to be going to the "sleeper" product. Great power, quietly. Other companies seem to be starting to offer products like this. (eg. Corsa)