Review on MagnaFlow Exhaust Products 12649 Muffler by Ron Patel

Muffler of excellent quality. Looks well put together and sounds great. Have an 01 Impala SS with a custom 3" straight pipe and no crampons with only Magnaflow #18129 double glazing and it was VERY noisy inside and out. Put that muffler on and it's no louder than the original in the car but still has that really nice rumble in the back that definitely doesn't sound like the original. If you're looking for a clean, straight trumpet sound with no internal hum, this muffler is for you.