Magnaflow Muffler

Magnaflow Muffler

Postby meetthespeakers [OP] » June 23rd 2008, 7:21pm

Hey guys, I was curious of those with a Magnaflow muffler how you liked them? I currently have a Gibson catback, but once I get my new rear bumper on I am gonna have to route the exhaust out that. I ordered a high flow Magnaflow Cat, and now I am thinking about picking up this muffler:
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My experience with the Gibson catback for the most part was great. Great fit, bolts right up, has a great idle tone. My only beef with it lately is droning on the highway at 65-75mph. I think this really came about after I added my intake. Anyway, I am hoping the Magnaflow muffler will be the same "loudness" but without the droning? Thoughts?

By the way, the muffler is not a bad price of $78 free shipping. So I figured I would weld in the cat, weld in the new muffler, bend up some pipe, and add a nice dual tip... :afro:
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Re: Magnaflow Muffler

Postby BoguSoft » June 27th 2008, 4:59am

I stuck a Magnaflow on my Jeep GC with the 5.2L V8 and I couldn't be happier with it. All my Astro's in the past have had Flowmasters so I figured I would give Magnaflow a shot. The Jeep had a "Turbo" muffler on it that was driving me nuts with droning and rattling. The Magnaflow mufflers are nice and quiet in the interior at cruising speed. On idle you can't tell the motor is running inside but outside it rumbles nice. The Magnaflow charm is when you get on the throttle! They bark like no other and have a nice deep sound unlike the "Flowmaster sound" After a few months the Magnaflow mellowed out a bit and sounded only better as time went on. I liked the stainless construction and i bashed it on the rocks but it never gave up or rattled. In short, I will buy another and my Astro Shorty is getting a V8 soon and it will certainly have 2 Magnaflows, not Flowmasters this time.
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Re: Magnaflow Muffler

Postby Mr_Roboto » July 2nd 2008, 2:10am

Add something like a Dynomax race bullet to your exhaust system, it should cut out a lot of the drone.
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Re: Magnaflow Muffler

Postby Gary » July 2nd 2008, 3:37am

Yeah-the Flowmaster that is on my donor van is too loud.Going to retire it during my V8 swap to Ole Yellar.
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Re: Magnaflow Muffler

Postby meetthespeakers [OP] » July 2nd 2008, 1:27pm

I ended up ordering this Magnaflow Muffler for $72 free shipping. So hopefully next week I'll be hearing some sweet sounds coming from the rear.

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Re: Magnaflow Muffler

Postby meetthespeakers [OP] » July 22nd 2008, 5:15pm

Okay, I finally got the Magnaflow muffler welded up last Friday. Good lord... It is a beast for sure. Sounds great at idle, and cruising. Drones a little to much at cruising, and it is just obnoxious at W.O.T. If it weren't for the W.O.T. I would probably keep the muffler. It just sounds way to ricey. :violence-torch: I am actually embarrased to floor it, it's like a small prop plane taking off. So the search continues. I will probably put the Gibson muffler back on, and get the magnaflow high flow cat on and see if that gives the Gibson catback a deeper tone. :whistle:
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Re: Magnaflow Muffler

Postby cosway » February 15th 2009, 4:25pm

meetthespeakers wrote:Okay, I finally got the Magnaflow muffler welded up last Friday. Good lord... It is a beast for sure. Sounds great at idle, and cruising. Drones a little to much at cruising, and it is just obnoxious at W.O.T. If it weren't for the W.O.T. I would probably keep the muffler. It just sounds way to ricey. :violence-torch: I am actually embarrased to floor it, it's like a small prop plane taking off. So the search continues. I will probably put the Gibson muffler back on, and get the magnaflow high flow cat on and see if that gives the Gibson catback a deeper tone. :whistle:


Thats what is sounds like to you on the inside or did you get somebody else to drive it at WOT while you drove beside/behind them on the highway?
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Re: Magnaflow Muffler

Postby zombie{[six]} » February 15th 2009, 11:46pm

CHERRY BOMBS FOR THE WIN
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Re: Magnaflow Muffler

Postby meetthespeakers [OP] » February 16th 2009, 5:19pm

Thats what is sounds like to you on the inside or did you get somebody else to drive it at WOT while you drove beside/behind them on the highway?


That is what it sounded like inside the van, it was really that bad. I believe after a week of having it on there I swapped it back to the Gibson Catback I made, plus I welded in the high flow Magnaflow converter. Recently after having it on for 6-8 months if finally threw a code saying that it was reading low catalyst efficiency in the downstream O2. So I had to put in a spark plug fouler and so far it has been working for over a week and half without tripping the code again. Cheers!
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Re: Magnaflow Muffler

Postby cosway » February 16th 2009, 11:52pm

maybe i'll put the muffs on and just never floor it again :)
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Re: Magnaflow Muffler

Postby meetthespeakers [OP] » February 17th 2009, 1:24am

I still got it laying in my garage with a custom flange that bolts up to the stock catback if you want to try it out...cough cough.
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Re: Magnaflow Muffler

Postby kyhillbilly » February 22nd 2009, 2:52pm

I had a Hooker aerochamber on my SS s10 4.3 and it had a very good sound! no pops or drone just a mellow rumble at any speed. All my buddys had flowmasters and they loved my muffler.
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