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Re: Magnaflow or Flowmaster [Re: Neil] #360428 06/28/09 06:54 PM 06/28/09 06:54 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	No opinion on muff selection but I would include large dia mandrel bent pipes, an X pipe and resonators of some sort in the tailpipes by the leaf springs live every 24 hour block of time like it's your last day on earth

Re: Magnaflow or Flowmaster [Re: dgc333] #360429 06/28/09 08:03 PM 06/28/09 08:03 PM
Joined: Feb 2003 Posts: 10,198 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,198 Someplace you aren't	Quote: Quote: Not a fan of chambered mufflers. Do you really want the flow battling itself to find a way out? I don't. Magnaflows have a tame, but deep, idle and bark real nice under heavy throttle. I run them now, and would buy them again in a heartbeat. About a year ago I read a SAE article on high performance exhaust design. It was very technical with a lot of considerations on how to size and place the muffler and pipes to create a system that has no loss compared to open headers. The two things I took from this article is that all performance mufflers sized properly flow more than than the engine generates and that it is easier to design a no loss system with chambered mufflers than it is with straight thru mufflers like the magnaflow or ultra flo. After that article I just tell people to pick what sounds good to them. Most performance mufflers flow over 500 CFM. My exhaust guy tried open, H pipe, and X pipe on his race car. Not sure what mufflers he used but all three had almost the same ET. I want my fair share

Re: Magnaflow or Flowmaster [Re: bobs69] #360430 06/28/09 08:14 PM 06/28/09 08:14 PM
Joined: Oct 2004 Posts: 16,477 Canada CrAzYMoPaRGuY I Live Here
CrAzYMoPaRGuY I Live Here Joined: Oct 2004 Posts: 16,477 Canada	For the 440 in my Jensen I went with Flowmaster 50s AND Dynomax Bullets. I use the Dynomaxs as resonators.... CrAzYMoPaRGuY

Re: Magnaflow or Flowmaster [Re: bobs69] #360431 06/28/09 09:53 PM 06/28/09 09:53 PM
Joined: Mar 2004 Posts: 2,025 Bucks County, PA 5 500Stroker
500Stroker 5 Joined: Mar 2004 Posts: 2,025 Bucks County, PA	Quote: I don't care about flow i want a good sound out the exhaust with little sound in the cab. And a good sound at idol. Go with the magnaflow you won't regret it. I installed them after I ditched my flowmasters. Nice and quiet (compared to flowmasters) in the car when crusing. When you nail it they sure wake up. I had a couple in car videos on putfile but they shut down. I need to find them again and find a new host.

Re: Magnaflow or Flowmaster [Re: RapidRobert] #360432 06/29/09 06:58 AM 06/29/09 06:58 AM
Joined: Nov 2004 Posts: 948 Alliance, Ohio V Valiant_Showoff super stock
Valiant_Showoff super stock V Joined: Nov 2004 Posts: 948 Alliance, Ohio	Quote: No opinion on muff selection but I would include large dia mandrel bent pipes, an X pipe and resonators of some sort in the tailpipes by the leaf springs Stay away from Flowmasters if you don't like the interior drone.

Re: Magnaflow or Flowmaster [Re: Valiant_Showoff] #360433 06/29/09 07:40 AM 06/29/09 07:40 AM
Joined: Nov 2003 Posts: 3,577 Long Island, NY USA B BergmanAutoCraft master
BergmanAutoCraft master B Joined: Nov 2003 Posts: 3,577 Long Island, NY USA	There are some good articles on this subject on the web. Vizards article is popular, although hard to follow at times. Anyway, its pretty well established of the 3 types of mufflers (chambered, turbo, stright through), that the straight through muffs are the only ones that flow as much or close to an open pipe. I also think people typically over pipe their systems, which make unecessary noise. Remember, 2.5" is good for 500hp. How many have less than that and run 3"?

Re: Magnaflow or Flowmaster [Re: Valiant_Showoff] #360434 06/29/09 09:20 AM 06/29/09 09:20 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: Quote: No opinion on muff selection but I would include large dia mandrel bent pipes, an X pipe and resonators of some sort in the tailpipes by the leaf springs Stay away from Flowmasters if you don't like the interior drone. Alright I will keep that in mind when I get to that point(which will be in a month or 2) live every 24 hour block of time like it's your last day on earth

Re: Magnaflow or Flowmaster [Re: Valiant_Showoff] #360435 06/29/09 07:04 PM 06/29/09 07:04 PM
Joined: Oct 2004 Posts: 16,477 Canada CrAzYMoPaRGuY I Live Here
CrAzYMoPaRGuY I Live Here Joined: Oct 2004 Posts: 16,477 Canada	Quote: Stay away from Flowmasters if you don't like the interior drone. My motorhome runs two 3" Flowmaster 50 series and has absolutely NO drone whatsoever. It depends HOW you install your exhaust and components and which Flowmasters you use. CrAzYMoPaRGuY

Re: Magnaflow or Flowmaster [Re: RapidRobert] #360436 06/29/09 07:06 PM 06/29/09 07:06 PM
Joined: Oct 2004 Posts: 16,477 Canada CrAzYMoPaRGuY I Live Here
CrAzYMoPaRGuY I Live Here Joined: Oct 2004 Posts: 16,477 Canada	Quote: No opinion on muff selection but I would include large dia mandrel bent pipes, an X pipe and resonators of some sort in the tailpipes by the leaf springs I'm thinking we think alike...? CrAzYMoPaRGuY

Re: Magnaflow or Flowmaster [Re: CrAzYMoPaRGuY] #360437 06/29/09 07:14 PM 06/29/09 07:14 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	Flow masters on a big block Mopar sound like doggie doo. Just sounds like a car with a bad ehaust system. I hate the sound of flowmasters. I'd go with the magnaflows or stock Hemi style mufflers.

Re: Magnaflow or Flowmaster [Re: Dougsmopars] #360438 06/29/09 08:22 PM 06/29/09 08:22 PM
Joined: Nov 2003 Posts: 3,106 Ridgeland Wi M mopars_1 master
mopars_1 master M Joined: Nov 2003 Posts: 3,106 Ridgeland Wi	flowmasters sound ok, magnaflows sound the best I think 1971 Plymouth Duster 340 auto 1937 Plymouth PT50 1969 Dodge Dart Swinger 340 4 speed 2013 Ram laramie 2500 hemi 2008 Harley FLSTSB springer

Re: Magnaflow or Flowmaster [Re: Dougsmopars] #360439 06/29/09 08:25 PM 06/29/09 08:25 PM
Joined: Oct 2004 Posts: 16,477 Canada CrAzYMoPaRGuY I Live Here
CrAzYMoPaRGuY I Live Here Joined: Oct 2004 Posts: 16,477 Canada	Quote: Flow masters on a big block Mopar sound like doggie doo. Just sounds like a car with a bad ehaust system. I hate the sound of flowmasters. I'd go with the magnaflows or stock Hemi style mufflers. My Flowmasters on my motorhome would be soooo far out in front of your car you wouldn't have to listen to them anyways.... CrAzYMoPaRGuY

Re: Magnaflow or Flowmaster [Re: Dougsmopars] #360440 06/29/09 08:27 PM 06/29/09 08:27 PM
Joined: Apr 2007 Posts: 2,327 Glendale, AZ 6 69L78Nova Banned. Forever.
69L78Nova Banned. Forever. 6 Joined: Apr 2007 Posts: 2,327 Glendale, AZ	Dynomax Super Hemi Turbos. I have them on my Barracuda. Nice tone at idle/cruise, quite audible at WOT. Its nice to hear that quad roaring at 7,000rpm! 1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser 1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)

Re: Magnaflow or Flowmaster [Re: CrAzYMoPaRGuY] #360441 06/29/09 08:45 PM 06/29/09 08:45 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: Quote: No opinion on muff selection but I would include large dia mandrel bent pipes, an X pipe and resonators of some sort in the tailpipes by the leaf springs I'm thinking we think alike...? I agree, (dis)functional minds do think alike. live every 24 hour block of time like it's your last day on earth

Re: Magnaflow or Flowmaster [Re: RapidRobert] #360442 06/29/09 09:10 PM 06/29/09 09:10 PM
Joined: Oct 2004 Posts: 16,477 Canada CrAzYMoPaRGuY I Live Here
CrAzYMoPaRGuY I Live Here Joined: Oct 2004 Posts: 16,477 Canada	Quote: Quote: Quote: No opinion on muff selection but I would include large dia mandrel bent pipes, an X pipe and resonators of some sort in the tailpipes by the leaf springs I'm thinking we think alike...? I agree, (dis)functional minds do think alike. I'm actually going mandrel bent pipes into an X pipe and then into two mufflers with resonators at the rear leaf springs on my Interceptor. I have a feeling there will be very little to no drone, I want a "quieter" ride than usual... CrAzYMoPaRGuY

Re: Magnaflow or Flowmaster [Re: CrAzYMoPaRGuY] #360443 06/29/09 09:14 PM 06/29/09 09:14 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: I want a "quieter" ride than usual... me too and everyone says that resonators at the end by the leafs makes a world of difference. live every 24 hour block of time like it's your last day on earth

Re: Magnaflow or Flowmaster [Re: CrAzYMoPaRGuY] #360444 06/29/09 09:15 PM 06/29/09 09:15 PM
Joined: Jan 2003 Posts: 13,571 md M mopars4ever I Live Here
mopars4ever I Live Here M Joined: Jan 2003 Posts: 13,571 md	Quote: neither go Dynomax

Re: Magnaflow or Flowmaster [Re: RapidRobert] #360445 06/29/09 09:58 PM 06/29/09 09:58 PM
Joined: Oct 2004 Posts: 16,477 Canada CrAzYMoPaRGuY I Live Here
CrAzYMoPaRGuY I Live Here Joined: Oct 2004 Posts: 16,477 Canada	Quote: Quote: I want a "quieter" ride than usual... me too and everyone says that resonators at the end by the leafs makes a world of difference. I have a warmed over 360 in my motorhome, .485" lift hydraulic roller, ported 2.02s, 1 3/4" headers, M1 intake etc... I have the headers feeding a Y pipe, and what is basically two 3" Flowmaster 50 series in tandem in a single exhaust. I absolutely LOVE it. I've heard cars with glasspacks for resonators behind a regular exhaust with mufflers, it sounded GOOD. I couldn't believe it myself. I'll try it, if it doesn't sound any good I'll swap it out, but I think it should be decent from many cars I have already heard... CrAzYMoPaRGuY

Re: Magnaflow or Flowmaster [Re: CrAzYMoPaRGuY] #360446 06/29/09 10:37 PM 06/29/09 10:37 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: I've heard cars with glasspacks for resonators that'll probably be my choice, some with the louvers punchedtoward the outside as to not restrict flow and no necked down connectors at the ends live every 24 hour block of time like it's your last day on earth

Re: Magnaflow or Flowmaster [Re: RapidRobert] #360447 06/30/09 01:29 AM 06/30/09 01:29 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	I run the 3" Dyno-Max Ultra-Flows and I like them. They are not way to loud but when I hit it they sound almost like open headers. I always race my 63 capped up and it feels good with the straight thru Ulta-Flows. One day I may uncap it but I really don't think it will be much if any faster. I actually went with the Ultra-Flows for the best performance rather then how they sound as I knew this lazy old man was not going to crawl under my car at the track and uncap it. Ron

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