Jump to content

Magnaflow vs glasspack

bigcountry78

Recommended Posts

bigcountry78 Enthusiast

bigcountry78

Posted
Posted

Is there really a difference? Most everything I've read here leads me to believe that the magnaflow is basically an expensive glasspack, so I was just wondering. I'm looking at replacing my flowmaster with something different and I'm looking at magnaflow as well the hooker aero chamber. Any thoughts?

  • Replies 30
  • Created
  • Last Reply
Carder09 Senior Enthusiast

Carder09

Posted
Posted

Look at the cherry bomb ol' skool glasspacks. Not sure of the sound but they might be good.

tyhuck Senior Enthusiast

tyhuck

Posted
Posted

Magnaflow is way better than a glasspack. You get all of the flow without the annoying pop. Not sure how they do it because the technology is similar (fiberglass mat spun around a perforated tube). I think it has to do with the diameter of the case on the Magnaflow allows for extra sound absorbtion. I run a magnaflow, and I love it WAAAAAAAAAAAAAAAAAAAAAAAAAYYYYYYYYYYY better than any glasspack out there.

jdubub Senior Enthusiast

jdubub

Posted
Posted

Maggy. Glass packs sound like crap.

 

 

What he said^^^^^^^^^^ Times 122346786853839832920930934204853857398530

bigcountry78 Enthusiast

bigcountry78

Posted
  • Author
Posted

Thanks for the replies. Has anybody here gone from flowmaster to magnaflow and noticed any improvement in drivability? I've been reading about some low end loss with flowmaster and I think this has been the case with my truck as well. 06 RCSB with 5.3. It just doesn't tow or accelerate the way I feel it should. Never has since I did the exhaust really. Thanks guys.

W/T_Deluxe Enthusiast

W/T_Deluxe

Posted
Posted

I ran a hillbilled flow master for about a month or so. It was a collector muffler off one of my friends old race truck, I think it was a super 40 series. anyway when I had it on I wasnt really impressed with the sound, and I did notice a slight loss in low end torque. However I do think the torque loss had more to due with the fact that the exhaust was shorter. Anyway after I finally fabbed up my magnaflow set up I'll never buy another muffler. I love the sound of it. At idle it has a decent rumble to it, nothing to obnoxious, same goes for cruising speeds. However when you mash the loud pedal it sounds great. with the flowmaster the tone would stay the same but just get louder, if that makes sense. With the magnaflow the tone gets more aggressive as you climb rpms. Nice thing about the magnaflow too, the packing is stainless so it shouldnt break down as quickly as other mufflers.

bigcountry78 Enthusiast

bigcountry78

Posted
  • Author
Posted

Well it sounds like my next question should be what length case should I be looking for? I've been running this flowmaster, supposedly a 40 series American thunder, for four years. So I don't think anything magnaflow makes would be considered to loud for me lol

tyhuck Senior Enthusiast

tyhuck

Posted
Posted

My truck had a Flowmaster 50 series on it when I bought it and I couldnt wait to get it off there. I noticed an change when the Magnaflow went on, but mainly in throttle response, not so much low end torque. What you may actually be feeling is that loss in throttle response, and the Magnaflow should get that back.

 

As far as length, if you want loud, go with the 14" case. Its plenty loud (for me anyway) but has a tone to it rather than a pop like a normal glasspack. I ran one on my 6.0 and loved it. It did drone in the cab though. my mother-in-law complained about not being able to talk in the back seat. Since I actually like my MIL, I did concider that a drawback. But since it was usually just me and the wife in the truck anyway, I just lived with it. I went with a 24" case on my current truck and its much quieter, but definately lets you know its not stock. If I was younger, and didnt need a quieter muffler for the woods, Ide probably go with a 14" again.

 

Just make sure you get the proper exhaust diameter to get that loss in low end back. Im running a 3" and its almost too big. Its great with my performance tune, but on a stock tune it seems to lose something. Ide stick wih the factory 2.75 for a single tailpipe or a 2.25-2.5 for duals.

Prokopchuk_9 Senior Enthusiast

Prokopchuk_9

Posted
Posted
I ran a hillbilled flow master for about a month or so. It was a collector muffler off one of my friends old race truck, I think it was a super 40 series. anyway when I had it on I wasnt really impressed with the sound, and I did notice a slight loss in low end torque. However I do think the torque loss had more to due with the fact that the exhaust was shorter. Anyway after I finally fabbed up my magnaflow set up I'll never buy another muffler. I love the sound of it. At idle it has a decent rumble to it, nothing to obnoxious, same goes for cruising speeds. However when you mash the loud pedal it sounds great. with the flowmaster the tone would stay the same but just get louder, if that makes sense. With the magnaflow the tone gets more aggressive as you climb rpms. Nice thing about the magnaflow too, the packing is stainless so it shouldnt break down as quickly as other mufflers.

No. Magnaflow mufflers are designed with lap jointed stainless. But the muffler uses a fiberglass packing inside the baffling, which will eventually get louder and burnt out. That's the only advantage to going with an even more expensive system like Corsa or borla. They use a stainless baffling inside. But I %100 agree with you, to the OP...you get what you pay for. Remember that, upon my researching of the different exhausts I've purchased in my past and negative experiences I've stumbled upon with other brands. Magnaflow is the best bang for your buck, I don't care What anybody else says. I've now been using the magnaflow system on my truck for 4 years, my 2002 was at 3 years. No issues. Always sounds good.

 

And to everyone else who thinks they are gaining power from an exhaust system is living in a dreamworld. Unless your installing LT headers with a good tune, your not gaining $Hlt

Mckenzie Senior Enthusiast

Mckenzie

Posted
Posted

I got true duals no mufflers with the cats on and it soubds dam good I love it . It sounds good at idling and even better when you get going. I had a cherrybomb extreme before that and it sounded good but I'm happiest with no muffler

 

 

Sent from my smartass iPhone using Tapatalk

bigcountry78 Enthusiast

bigcountry78

Posted
  • Author
Posted

This is for an 06 RCSB with the 5.3. I've never noticed any drone but I do hear my exhaust. I think a lot of ppl confuse drone and loud exhaust. Personally, if you can't hear it then there's not much point in having it IMO. I don't think drone is a problem with reg cabs anyway. I had true duals with 40 series FM on my 98 and even ran glasspacks for a while and never had any issues with drone. My current setup is a single in, dual out. It's factory piping goin in and I think it may be 2.25 coming out but I'm not positive. They look fairly small. Anyway I'm just looking to cut this one out and put a new one in.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,739
    Total Members
    8,960
    Most Online
    JimmyB4
    Newest Member
    JimmyB4
    Joined

  • Who's Online   4 Members, 0 Anonymous, 842 Guests (See full list)

  • Latest Articles

  • Posts

    • KARNUT
      OCI, not when but why?

      By KARNUT · Posted

      I’ve own several successful businesses. I’ve bought homes and lived in different states. I’d witness several generations buy homes and survive in different economic circumstances. You get awful sippy when people have different experiences than you do. You live a life. I’ve lived a life. It seems our experience has been different. You can point out generalized statistics. Some people learn how to thrive when the odds are against them. Living in different states does make a difference in a persons quality of life and economic outcomes and opportunities. That’s a fact Jack. It’s my truth, my life. Hard work and long hours the right environment made my families life easier. And yes moving to a different state increased the odds of that happening. Stats are generalized. People who thrive don’t make excuses. They beat the odds. Others get mad and point to those statistics. I guess that’s you. My post pointed out how you helped people beat the odds. Somehow your panties got in a wad. Go figure. 
    • MrChips
      Road Master Active Suspension

      By MrChips · Posted

      Good question, I don't remember for sure but I believe it was the HD. I will check and get back to you.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Point of the post sir was that while both wages and cost are rising EVERYWHERE; the cost is rising faster EVERYWHERE than the ability to buy EVERYWHERE. We're not going down the location rabbit hole. I'm aware of what economic migration is. I've lived in four states including Texas.   It's what "Purchasing Power" means.   I'm not telling you what I think. I'm telling what the government, your government, data shows.   It wasn't an argument. It wasn't a suggestion. It was a statement of FACT. You are absolutely entitled to your own opinion. Your not entitled to your own facts. If you and I were, they wouldn't be facts.    fact /făkt/   noun Knowledge or information based on real occurrences. "an account based on fact; a blur of fact and fancy." Something demonstrated to exist or known to have existed. "Genetic engineering is now a fact. That Chaucer was a real person is an undisputed fact." A real occurrence; an event. "had to prove the facts of the case." The American Heritage® Dictionary of the English Language, 5th Edition • More at Wordnik   If you'd like to disagree call your Senator or Representative and let him know his departments are in error. But you and I? We are not doing this. 
    • JimCost2014
      Transmission jumping out of gear while driving.

      By JimCost2014 · Posted

      Probably a one and done post, but do you have a CEL on the dash? Was having issues with my transmission, fortunately only a week, and it turned out to be the transmission harness. Valve body was in good shape, so new harness with all the sensors attached, new fluid, and filter. Seems to have worked so far?
    • Atlas
      Missing thrust bearing? And oil selection

      By Atlas · Posted

      Two interesting tidbits of information which are NOT related were just released.   One, regarding the possible thrust bearing issues / engine failures with the 3.0. Demonworks just did a segment in which they believe they may have found "a" or "the" cause of thrust bearing failures: A missing thrust bearing. If the engine doesn't have all its thrust bearings from the factory, the missing bearing can cause extra play which ends up destroying a nearby thrust bearing which then sends metal through the engine.       Of other importance, Lake Speed Jr released some interest information regarding oil weight selection for the 3.0. Comparisons of:   AcDelco 0w20 Dexos D Mobil 1 ESP x2 0w20 Dexos D Mobil 1 ESP x2 0w30 Mobil 1 ESP x4 0w40. Mobil Delvac 5w40   Spoiler alert: The Mobils are PAO Ester -base and the ACDelco is a Group III base. Mobil shows lower wear in their tests for similar weights. Additive packages between 20-30-40 weight ESP's appear to be the same, but only 0w20 is Dexos D licensed. Wear is even more reduced with 30 and 40 weight ESP although all perform very well and resist shear and provide very similar viscosities within temperature operating ranges in the 3.0.   There are even more surprises, so just go watch it.    

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...