[rob3980]

I just got my mac Lt headers and Mac Lt off road H pipe I was wondering what is the best performance exhaust between the Magnaflow catback and the Mac catback?

[ninetysixmustang]

it's pretty much a matter of sound preference at this point. I had Flowmaster 40s but the drone got to me after 5 years. Now I have Borla pro xs. Very quite at idle and cruising speeds, nice roar at WOT.

I don't know how magnaflow or mac sounds. Quiter than Flowmaster 40s that's for sure. Hell, the helicopter in my backyard is quieter than the flowmasters

[Stanger98]

Originally Posted by rob3980

I just got my mac Lt headers and Mac Lt off road H pipe I was wondering what is the best performance exhaust between the Magnaflow catback and the Mac catback?

mufflers really don't provide for much of the HP or TQ gains. They are more for sound until you get a power adder, then you'll want one with a straight through design to reduce any restrictions.

Mac Catbacks sound really good, Magnaflow sounds like a fart at high RPM's.