Notices
924/931/944/951/968 Forum Porsche 924, 924S, 931, 944, 944S, 944S2, 951, and 968 discussion, how-to guides, and technical help. (1976-1995)
Sponsored by:
Sponsored by:

Anyone using a Magnaflow Exhaust? (n/a)

Thread Tools
 
Search this Thread
 
Old 10-27-2003, 08:47 PM
  #1  
PSUice944
Pro
Thread Starter
 
PSUice944's Avatar
 
Join Date: May 2001
Location: Pittsburgh
Posts: 704
Likes: 0
Received 0 Likes on 0 Posts
Arrow Anyone using a Magnaflow Exhaust? (n/a)

As the subject says...

I have been playing around with my exhaust more than I care to admit, and recently I have had "gasket and hangar reliability problems". Loud is cool, but I couldn't even hear myself think at Mid-Ohio this last weekend.

So screw the Flanged cat with a dynomax and so-forth, I'm getting it all re-done and fully welded up, and am not 100% happy w/ the current muffler.

Magnaflows sound great on VW VR6s and I will continue that program next year!

And on another note, I may have a track ready flanged cat w/ test pipe and dynomax muffler 2.5" for sale soon! I even have a Flowmaster ready to go as well .

TIA
Old 10-27-2003, 11:06 PM
  #2  
CR
Instructor
 
CR's Avatar
 
Join Date: Jul 2001
Location: Sacramento, CA
Posts: 235
Likes: 0
Received 0 Likes on 0 Posts
Default

PSUice944,

I had a magnaflow put on my 87 N/A about a year and a half ago and I really like it. Sounds more "racy" than stock, but not "ricy". A nice deep tone. I kept it simple though and didn't change to a high flow cat or larger diameter piping, I didn't think I would really see that much benefit. Hope that helps.

CR
Old 10-28-2003, 07:59 AM
  #3  
identity crisis
Instructor
 
identity crisis's Avatar
 
Join Date: Aug 2003
Location: Warren, Michigan
Posts: 118
Likes: 0
Received 0 Likes on 0 Posts
Default

Howdy. I just had a magnaflow muffler put on my 84 n/a. I also had a high performance free-flow cat and all new stainless steel piping put on at the same time. It still doesn't sound like my v-8 with flowmasters, but it's definitely throatier than stock. The only time it get's 'ricey' would be when you're free-revving it or if you run it up over 4 grand in gear before shifting. Overall, i'm pretty pleased with it though. Plus, the polished stainless looks nice.
Old 10-28-2003, 12:12 PM
  #4  
PSUice944
Pro
Thread Starter
 
PSUice944's Avatar
 
Join Date: May 2001
Location: Pittsburgh
Posts: 704
Likes: 0
Received 0 Likes on 0 Posts
Default

Better/meaner than stock is good. My car hasn't been "normal" since before I bought it...

And when I let it rip, YES I DO want everyone else to know it!

Now the follow up question on SIZE:

How big/long goes back there? I don't have a stock muffler for comparison.
Old 10-28-2003, 01:26 PM
  #5  
identity crisis
Instructor
 
identity crisis's Avatar
 
Join Date: Aug 2003
Location: Warren, Michigan
Posts: 118
Likes: 0
Received 0 Likes on 0 Posts
Default

Hmmm, i'll have to measure mine to be certain, and it's at the shop right now getting detailed, but i'll check it out when I get it back and let you know. Because of the high performance catalytic converter mine may have a slightly different sound, too.
Old 10-29-2003, 05:46 PM
  #6  
944JM
Instructor
 
944JM's Avatar
 
Join Date: Jan 2003
Location: Winston Salem
Posts: 131
Likes: 0
Received 0 Likes on 0 Posts
Default

I have an '88 944 N/A. Which Dynomax muffler did you have? I'm junking a Super Trapp that I was told was the thing to use. I about went deaf with that setup too. According to the dyno guy, whoever said they were good on cars should be shot They are either too restrictive or too loud with no real happy medium. I've been steered away from the Flowmaster by a muffler dealer that sells them. He did not recommend it for the Porsche. Too much like a hollow tin can sound and had a customer try it only to dump it for a stock unit. I have a Bursche (spell?) header and free flow cat already in place. I'm hearing the dynomax 17747 is the one to use. Tired of the muffler merri-go-round. I just want a good comprimise between free flow and deep sound without the ricey bee in a tin can headache.

James
Old 10-29-2003, 05:53 PM
  #7  
Antonio951
Drifting
 
Antonio951's Avatar
 
Join Date: Oct 2003
Posts: 2,008
Likes: 0
Received 0 Likes on 0 Posts
Default

I need a new muffler for mine, where can i get the magnaflow and how much would it cost me?
Old 10-29-2003, 06:00 PM
  #8  
PSUice944
Pro
Thread Starter
 
PSUice944's Avatar
 
Join Date: May 2001
Location: Pittsburgh
Posts: 704
Likes: 0
Received 0 Likes on 0 Posts
Default

The magnaflow is kind of a custome type thing... still have to figure out the size.

The Dynomax I have is (I believe) the 2.5" Super Turbo. I also have the good 'ole 40 series Flowmaster. Nice at idle and a unique sound with it, but yes, done with a gear and it rings between shifts.

I want to try the Magnaflow for the "growl" it is supposed to promote, versus the muffeled performance note the dynomax gives me.

What style is that "17747"? Straight through perforated?
Old 10-29-2003, 06:02 PM
  #9  
PSUice944
Pro
Thread Starter
 
PSUice944's Avatar
 
Join Date: May 2001
Location: Pittsburgh
Posts: 704
Likes: 0
Received 0 Likes on 0 Posts
Default

OH,

identity crisis, what would the cruising volume be in the cabin? I have to take a few roadtrips to these DEs! If the sound is mostly all out back, I really don't care how loud it is...
Old 10-29-2003, 08:24 PM
  #10  
944JM
Instructor
 
944JM's Avatar
 
Join Date: Jan 2003
Location: Winston Salem
Posts: 131
Likes: 0
Received 0 Likes on 0 Posts
Default

The 17747 is the Super Turbo in 2.25 pipe. It's an oval with the perfed pipe curving twice inside before exiting not just a straight perfed pipe. I like the low cabin noise but a rumble outside. With the current set up I have, it sounds like a '68 Cougar I used to have with a V8 and Cherry bomb mufflers that ended in front of the rear axle. LOUD. Without the V8 rumble. When you say the Dynomax is muffled, is it like a louder version of the stock muffler or does it have a hint of performance to it without waking the dead? Is the cabin noise low?
Old 10-29-2003, 08:59 PM
  #11  
Steve 4001
Advanced
 
Steve 4001's Avatar
 
Join Date: Jul 2003
Location: Indianapolis
Posts: 88
Likes: 0
Received 0 Likes on 0 Posts
Default

my 83 has a magnaflow. it sounds pretty throaty until you get into higher rpms
Old 10-29-2003, 10:31 PM
  #12  
iloveporsches
Race Director
 
iloveporsches's Avatar
 
Join Date: May 2002
Posts: 13,634
Likes: 0
Received 1 Like on 1 Post
Default

I could use a new muffler/ exhaust this spring. How much does the Magnaflow and comparable systems run?
Old 10-30-2003, 11:25 AM
  #13  
PSUice944
Pro
Thread Starter
 
PSUice944's Avatar
 
Join Date: May 2001
Location: Pittsburgh
Posts: 704
Likes: 0
Received 0 Likes on 0 Posts
Default

I wish I could sell you my 2.5" Dynomax! Oh well...

I would have to say it sounds somewhat serious. At idle I notice a definite throaty sound and as the revs increase, the note increases. There is no way our engine can sound like a ricey fart-can, but this muffler does have a similar harmonic sound... meaning one solid note exiting the tailpipe. Many other cars and other mufflers have a few "sounds" exiting the exhaust at one time, and that growly snarl is what I would love to have, personally.

So, no it doesn't sound like a V8, doesn't sound like a cheerybomb (I would know that too), doesn't sound like a ricer, and doesn't sound stock when you hit the gas. It sounds like a performance exhaust that isn't stock.

I'm pretty sure I'm going to investigate the costs of these Magnaflows and if decent, I'm going with that. Maybe I'll even set up my exhaust with another that is straight though and interchangable with my other mufflers! Hey, I've got em, why not since no one else is too interested!
Old 10-30-2003, 05:37 PM
  #14  
Antonio951
Drifting
 
Antonio951's Avatar
 
Join Date: Oct 2003
Posts: 2,008
Likes: 0
Received 0 Likes on 0 Posts
Default

Anyone know what kind of magnaflow i need for my 87 n/a? And how much would it cost. I need the whole muffler and are they stainless steel and chrome tipped?
Old 10-30-2003, 06:17 PM
  #15  
944JM
Instructor
 
944JM's Avatar
 
Join Date: Jan 2003
Location: Winston Salem
Posts: 131
Likes: 0
Received 0 Likes on 0 Posts
Default

How was the cabin noise with the Dynomax?


Quick Reply: Anyone using a Magnaflow Exhaust? (n/a)



All times are GMT -3. The time now is 01:33 AM.