What is the concensus on the Magnaflow cat back exhaust system, single or dual either one? I heard a sound clip on Magnaflow website for the dual but I was wondering how it compared to the Flowmaster. Does it sound as good, better, same? It seems a little cheaper at about $424 and it is stainless. Only thing I don't think it goes all the way up to the reonators up front. Any info?

I was wondering this also. I had a Magnaflow cat back on my mustang and it was high quality and sounded good without being too loud. I have a very good Magnaflow dealer near my house that I would use again. Hope you get some answers here. It seems the Gibson products are very popular on the trucks so that is probably what people will rec.

I've heard a Magnaflow single on a Titan and it sounded good, but my personal preference was for the Flowmaster sound. As for the Flowmaster duals, use the link below to listen to sound clips of mine, including a comparison with the stock exhaust sound (play both mp3s at the same time at same volume). Also posted pics and take off and drive by videos.
http://www.clubtitan.org/postt1113.html

Caltitan, Go to Magnaflow website and listen to the sound clip for the dual system and tell what you think compared to yours if you could please. I'm really up in the air as to what system or configuration to install, single/single, single/dual, dual/dual, flowmaster, magnaflow, borla. I want the best sound and performance and gas mileage without being too load or what they call "raspy". There is a guy in town that has a dual/dual flowmaster setup that I'm trying to track down so I can hear it in person. All I've had to go by so far are sound clips. Any help from someone with experience would be a great help. Thanks

For performance it seems to be a little better with a single out exhaust. Talk to Jettech and Slurppie. Jettech swears by Slurppies set up for the best bang or the bucks.
M4ck

I don't think you get a new Y pipe with the Magnaflow. If you go to their web site and look at the instructions for the Titan system they tell you to cut off the pipe behind the Y and connect their system there. The Y pipe is the critical part that you want to replace on the Titan (or Armada). I looked at all the systems before buying the Gibson. I quickly eliminated the Magnaflow because it does not replace the Y pipe. I have the Gibson SS 3" single on my Armada and think I made the right choice.

Caltitan, Go to Magnaflow website and listen to the sound clip...I listened to those sound clips prior to purchasing the Flowmaster I have. They sounded nice and were also recorded between buildings if I can recall which would likely influence the quality of the recorded sound. But I had heard Flowmaster systems in the past and always loved the sound of the deep tone they produced. That's the main reason I chose mine. My clips were not edited to change the quality of the sound and to me the stock exhaust sound clip I made sounds fairly true to life on my computer speakers (plus woofer) and I hope other people that hear it agree. My Flowmaster is not raspy at all and sounds deeper in tone then most other truck/SUV exhausts I hear. Basically, it will come down to personal preference as far as the tone and volume of the exhaust note. Performance gains seem to differ a little from the dynos I've seen but I am one who would trade two or three units of HP for a much better sounding exhaust.

Caltitan, What did the Flowmaster do for your gas mileage?

Caltitan, What did the Flowmaster do for your gas mileage?My mileage has slowly been improving ever since I bought the Titan. I do mostly city driving with some hill driving. When new, I was at 11.5 mpg and then that slowly improved to about 13 mpg just before installing the exhaust. After install it went down to 12 mpg (probably due to a heavy foot to hear the exhaust) and then worked itself up to 13.7 mpg at last check. I have seen posts from those that have owned Titans over a year and driven many miles that indicated fuel mileage improved with the age and use of the truck.

I have the SI/SO cat back system on my Titan right now and I am regretting it. I chose the MF cat back because my research told me that this system would give the greatest performance increase over other cat-back systems (although only slighty better than others). I also heard the sound clips and liked it. The in-cabin drone in mine is absolutely ear-splitting. Several calls to Magnaflow technicians gave me little hope: one said that the muffler needs 4 weeks to break in (I don't buy that), one told me to swap the muffler out for a longer one (at full price), and one told me to add a resonator to cut down the drone. I even took the truck into a local custom exhaust shop and after they verified the installation they told me to add a resonator or swap the muffler out for a Flowmaster 70 series. Rather than start cutting the nice stainless steel pipes up and adding resonators, I decided to return the system and get the Flowmaster cat-back. I was not willing to alter the Magnaflow system to cut down the unbearable noise, the system ought to work properly without altering it. After researching the problem some more I came to the conclusion that this system is just not meant for 4x4 Titans due to their lack of stock resonators. I am also convinced that this system cut down my low end torque significantly. The sound outside the cab is a little too obnoxious for my taste as well. I was impressed with the good fit and high quality of the whole system, however.

I have a magnaflow muffler but it was a custom exhaust. Only the muffler was magnaflow. Now on my 96 GMC I had the American Thunder series Flowmaster cat back, and loved it. It was a 50 series single in dual out. There was no interior resonance and it had the sound I was looking for. The magnaflow however does cause some droning at about 2000 rpm that can get a little annoying at times. But I dont mind it so much. I think the Magnaflow has a better power gain than the flowmaster did on my 96. But I think it is all preference to what you like. If I had it to do over again I would have done stainless from the catback. All in all I like me magnaflow, especially paired up with the Volant CAI. :lol:

You guys are awesome! This is the kind of stuff I need to hear before I throw the $ down for an exhaust system. I went to a local dealer who recommended a 50 series Flowmaster Single in Dual out. Being that I am new to this whole exhaust scene, I am still not sure what to do. The dealer said they use a Flowmaster muffler, but customize the rest of the job. Any advice?????

KYFHO,

I know I'm probably only going to confuse you more with my observations (more information, fewer conclusions) but here are some of the things I've picked up on this board while looking for an aftermarket exhaust. I'm hoping one of our resident gurus will jump in here to help you narrow things down a little:

1. As mentioned above, there is general agreement that a performance single exhaust will give you better performance numbers than a dual setup. On the other hand, dual pipes sound soooo nice ...

2. There are some who have argued that a factory-designed catback system will give you the best performance / sound as many hours have gone into optimizing the design specifically for your vehicle.

3. On the other hand, others have argued in favor of custom systems fabricated by a local specialty shop, particularly if you go with a complete, "true" dual exhaust system.

4. Those that prefer the factory-designed system will point out that most use mandrel-bent tubing, which allows perfect flow, as opposed to the crimp-bent pipes used by most custom fabricators (though there are some out there who can do mandrel work).

5. The lower the series number of a Flowmaster exhaust, the louder (and with a greater potential for what is lovingly referred to as "cabin drone"). I believe CalTitan has the Flowmaster 70 catback system on his Titan (correct me if I'm wrong Cal), which a number of board members like as a good combination of power/sound/price. There are also a number of Gibson enthusiasts on the board, and some that like others still.

6. I'm guessing that in Lousiana salt and rust are not going to be huge worries for you. I live in northern NY where road salt is a way of life and so I sprung for the stainless Borla system, which has a million mile warranty.

Drop a post back and let us know what you finally picked!

TitanGuyCNY,

Well said.

Here is my take on it. I have always purchased exhaust products from well known companies and most reputable manufacturers put a decent amount of R&D into the design, performance and sound of their exhaust systems. It's pretty much higher flow and velocity = more power. So each system will be very close in terms of power output. It pretty much comes down to preference which is usually the sound and/or design and material. I can not speak for custom designed muffler shop systems which do not use a mandrel bending machine because the use of crush bends offsets the increased flow from the bigger pipes and free flow muffler.

TitanGuyCNY,

Well said.

Here is my take on it. I have always purchased exhaust products from well known companies and most reputable manufacturers put a decent amount of R&D into the design, performance and sound of their exhaust systems. It's pretty much higher flow and velocity = more power. So each system will be very close in terms of power output. It pretty much comes down to preference which is usually the sound and/or design and material. I can not speak for custom designed muffler shop systems which do not use a mandrel bending machine because the use of crush bends offsets the increased flow from the bigger pipes and free flow muffler.

That pretty much sums up my advice to most people wondering about an aftermarket exhaust. It really boils down to aural preference because I doubt there is a hill of difference in actual performance numbers as long as it is a mandrel bent system. The only thing that blows my theory out of the water is slurppies single in single out JBA system, of which blew my mind on the dyno. But then again his is a rare system because it replaces the resonators, and unfortunately it can't be had anymore....

TitanGuyCNY,

Well said.

Here is my take on it. I have always purchased exhaust products from well known companies and most reputable manufacturers put a decent amount of R&D into the design, performance and sound of their exhaust systems. It's pretty much higher flow and velocity = more power. So each system will be very close in terms of power output. It pretty much comes down to preference which is usually the sound and/or design and material. I can not speak for custom designed muffler shop systems which do not use a mandrel bending machine because the use of crush bends offsets the increased flow from the bigger pipes and free flow muffler.

That pretty much sums up my advice to most people wondering about an aftermarket exhaust. It really boils down to aural preference because I doubt there is a hill of difference in actual performance numbers as long as it is a mandrel bent system. The only thing that blows my theory out of the water is slurppies single in single out JBA system, of which blew my mind on the dyno. But then again his is a rare system because it replaces the resonators, and unfortunately it can't be had anymore....

It's definitely his system which removes the resonators. Those things are super restrictive. When I pulled mine, I definitely felt improvement across the board. I think the reso removal produced the best gains (my mods done) on my truck. That was great advice Jet! Thanks again.

It's definitely his system which removes the resonators. Those things are super restrictive. When I pulled mine, I definitely felt improvement across the board. I think the reso removal produced the best gains (my mods done) on my truck. That was great advice Jet! Thanks again.

You're more then welcome m95, I'm just glad you enjoy it because it eliminates a known restriction and also makes a nice performance difference. Enjoy!!!