I finally got muffler and the tailpipes installed, and it is very loud. I've had flowmaster and the magnaflow crossflow muffler and they do not compare when it comes to sound. However the magnaflow flows better. If you want your car loud then spintech would get my vote.

 

I have a spintech on my formula and I wouldn't say its loud.

 

Magnaflow does not flow as well as the spintech. Spintech and Borla both flow around 180 according to spintech's site flyier

 

No Magnaflow outflows the spintech and the difference is night and day. You can feel the spintech holding the car back, and if you look inside the spintech muffler you will see that the exhaust doesn't exit straight out. It goes through all the little chambers or what ever. The magnaflow doesn't have the chambers. It goes in and out. That why it so quiet, unless at wot.