Which exhaust with no drone?
Senior Member
Joined: Mar 2004
Posts: 1,061
Likes: 0
From: Detroit Rock City
I had a Magnaflow muffler put on my truck about 6 months ago. Just cut out old muffler and put in Magnaflow. It's a little louder than stock but not much. Yesterday I had the Magnaflow cut out and a straight pipe put in. It sounds pretty freakin nice. It's kinda loud in my garage starting it up when it's cold and the idle is up but other than that it sounds almost perfect, maybe just a little too loud. Now the weird thing. There is no drone in the cabin at speed. It quiets right down. I can't imagine a magnaflow droning, as quiet as mine was. Now I'm debating on finding a muffler that's louder than the Magnaflow or just leaving in the straight pipe. 
Senior Member
Joined: May 2004
Posts: 5,409
Likes: 1
From: Sunny FL
Originally posted by RED WING NUT
I had a Magnaflow muffler put on my truck about 6 months ago. Just cut out old muffler and put in Magnaflow. It's a little louder than stock but not much. Yesterday I had the Magnaflow cut out and a straight pipe put in. It sounds pretty freakin nice. It's kinda loud in my garage starting it up when it's cold and the idle is up but other than that it sounds almost perfect, maybe just a little too loud. Now the weird thing. There is no drone in the cabin at speed. It quiets right down. I can't imagine a magnaflow droning, as quiet as mine was. Now I'm debating on finding a muffler that's louder than the Magnaflow or just leaving in the straight pipe.
I had a Magnaflow muffler put on my truck about 6 months ago. Just cut out old muffler and put in Magnaflow. It's a little louder than stock but not much. Yesterday I had the Magnaflow cut out and a straight pipe put in. It sounds pretty freakin nice. It's kinda loud in my garage starting it up when it's cold and the idle is up but other than that it sounds almost perfect, maybe just a little too loud. Now the weird thing. There is no drone in the cabin at speed. It quiets right down. I can't imagine a magnaflow droning, as quiet as mine was. Now I'm debating on finding a muffler that's louder than the Magnaflow or just leaving in the straight pipe.
I also just cut the OEM muffler out and welded in a Magnaflow. It’s been about a year now and it has finally got louder but still no drone.
Senior Member
Joined: May 2004
Posts: 5,409
Likes: 1
From: Sunny FL
Originally posted by RED WING NUT
I had a Magnaflow muffler put on my truck about 6 months ago. Just cut out old muffler and put in Magnaflow. It's a little louder than stock but not much. Yesterday I had the Magnaflow cut out and a straight pipe put in. It sounds pretty freakin nice. It's kinda loud in my garage starting it up when it's cold and the idle is up but other than that it sounds almost perfect, maybe just a little too loud. Now the weird thing. There is no drone in the cabin at speed. It quiets right down. I can't imagine a magnaflow droning, as quiet as mine was. Now I'm debating on finding a muffler that's louder than the Magnaflow or just leaving in the straight pipe.
I had a Magnaflow muffler put on my truck about 6 months ago. Just cut out old muffler and put in Magnaflow. It's a little louder than stock but not much. Yesterday I had the Magnaflow cut out and a straight pipe put in. It sounds pretty freakin nice. It's kinda loud in my garage starting it up when it's cold and the idle is up but other than that it sounds almost perfect, maybe just a little too loud. Now the weird thing. There is no drone in the cabin at speed. It quiets right down. I can't imagine a magnaflow droning, as quiet as mine was. Now I'm debating on finding a muffler that's louder than the Magnaflow or just leaving in the straight pipe.
Wouldn’t it be interesting to see some dyno numbers on the set-up you have verse Magnaflow? Magnaflow claims no loss of torque at low rpm’s in fact they claim a significant increase of hp & torque throughout the rpm range. My thought being they are both a straight through set-up.
Wouldn’t be very many cat-backs being sold if the straight pipe showed hp & torque gains throughout the rpm range but there would probably be an increased demand for chrome exhaust tips.
14.7 HP at the wheels on the new 300 HP 3-valve 5.4 motors - along with gaining torque everywhere
Senior Member
Joined: Feb 2003
Posts: 260
Likes: 0
From: Tulsa, OK
Originally posted by digipax
On my 2004 F150 SuperCrew the SISO Magnaflow 15821 drones excessivly. Always has, and has progressivly gotten louder the more miles I put on it. It is most noticable between 35-50 MPH. I sure wish they would have shipped me the non droning one like you guys got. I got it from Troyer, great to deal with BTW.
On my 2004 F150 SuperCrew the SISO Magnaflow 15821 drones excessivly. Always has, and has progressivly gotten louder the more miles I put on it. It is most noticable between 35-50 MPH. I sure wish they would have shipped me the non droning one like you guys got. I got it from Troyer, great to deal with BTW.
Senior Member
Joined: Sep 2004
Posts: 487
Likes: 0
From: Oklahoma
The dual rear exit Magnaflow is louder than stock at most speeds. Not obnoxious, but I would expect an aftermarket exhaust to sing to me a little bit. One of the reasons I changed from stock was for the sound. Don't know about the single out systems as I've never heard one...Kevin
