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Performance exhaust question #4108277 05/27/16 03:08 PM
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007 Offline OP
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I am looking to replace the dual exhaust on my 86 Grand National with either a Pypes system (SGG50R)for around $350 vs a system from Magnaflow (16884)for around $650. Magnaflow is still made in the USA but I am not sure if its worth the cost if both units perform the same. Anyone have experience with either?

Re: Performance exhaust question [Re: 007] #4108289 05/27/16 03:23 PM
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rooflessVW Offline
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Which one is stainless?


"Zed's dead baby, Zed's dead."
Re: Performance exhaust question [Re: 007] #4108291 05/27/16 03:24 PM
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vitez Offline
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Never heard of Pypes, but I always gravitate towards the sound of Magnaflow systems. They sound throaty and authoritative without the cheap higher pitched rattle that some cheap systems create.

I put a cheap turbo-back exhaust on my old 98.5 Dodge Cummins turbo diesel, and at idle it sounded like it was [censored], ie "passing gas" all the time. I hated it. I've got an Aeroturbine muffler on the stock exhaust system on my current 2006 Dodge Ram Cummins 5.9 and it sounds very good.

Cheap isn't always inexpensive.


I have CDO. It's like OCD except in alphabetical order like it should be.
Re: Performance exhaust question [Re: 007] #4108294 05/27/16 03:28 PM
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SatinSilver Offline
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I don't think you want a generic exhaust on an 86 GN. Plus I thought you had a T-Type?

Re: Performance exhaust question [Re: 007] #4108301 05/27/16 03:36 PM
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bdcardinal Offline
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My 95 has a Magnaflow catback and it sounded good before I put the car down for a few years. I generally prefer Borla, but they don't make exhaust for every applications.


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Re: Performance exhaust question [Re: 007] #4108308 05/27/16 03:48 PM
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Kool1 Offline
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Magnaflow mufflers have packing material that lasts longer than standard packing but the sound still changes over time. For American muscle you may want to consider Flowmaster. A custom Flowmaster system on American muscle cars has a sweet tune that's hard to beat.

Re: Performance exhaust question [Re: Kool1] #4108319 05/27/16 03:57 PM
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bdcardinal Offline
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Originally Posted By: Kool1
Magnaflow mufflers have packing material that lasts longer than standard packing but the sound still changes over time. For American muscle you may want to consider Flowmaster. A custom Flowmaster system on American muscle cars has a sweet tune that's hard to beat.


Personal opinion, I will never use Flowmaster. I hate that sound, every car I hear with them sounds the same.


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Re: Performance exhaust question [Re: 007] #4108330 05/27/16 04:21 PM
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wtd Offline
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While I don't have any personal experience with pypes, I have read that some of their stuff has fitment issues and for that price, I doubt it's stainless.

Magnaflow does have some nice stuff and I recently helped a friend put a stainless Magnaflow cat-back on his 2011 Ford Raptor. It sounds very good. One of his prior chevy trucks also had a Magnaflow system on it.

I will also second bdcardinal's recommendation of Borla. I currently have a Borla cat-back on my 98 chevy ext-cab Z71 and it sounds very good. It's been on the truck since about 2001 and still in great shape.

I also had a 2004 Monte Carlo SS with a Borla cat-back on it. The sound wasn't the greatest but the quality of the system was very nice.

Of your two choices you mentioned, I would go with Magnaflow.

Wayne


2014 Mustang GT
1998 Chevy K3500
1998 Chevy K1500
(2) 1992 Cavaliers
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Re: Performance exhaust question [Re: 007] #4108369 05/27/16 05:17 PM
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+1 smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Performance exhaust question [Re: 007] #4108384 05/27/16 05:32 PM
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slacktide_bitog Offline
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Dynomax is good stuff too smile

Re: Performance exhaust question [Re: 007] #4108403 05/27/16 05:57 PM
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jeepman3071 Offline
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I've had great experiences with Magnaflow and Dynomax. Magnaflow in my opinion has the best sound. Nice clean deep rumble without being obnoxious. Dynomax has also been great but the aluminized construction isn't as robust as the stainless magnaflow.

I hate Flowmasters. They don't flow very well at all, the baffles inside often rust and the tack welds break loose making them rattle. Not to mention the whole case of the muffler seems to rust very fast. I have never heard of Pypes.


1998 Jeep Wrangler Sahara 4.0L/5MT (156k) - PHM 10w30, Wix 51085
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Re: Performance exhaust question [Re: 007] #4108435 05/27/16 06:47 PM
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aquariuscsm Offline
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I heard Pypes on a Mustang GT and it sounded awesome!!


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Re: Performance exhaust question [Re: Kool1] #4108447 05/27/16 07:02 PM
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Noey Offline
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Originally Posted By: Kool1
Magnaflow mufflers have packing material that lasts longer than standard packing but the sound still changes over time. For American muscle you may want to consider Flowmaster. A custom Flowmaster system on American muscle cars has a sweet tune that's hard to beat.


^This.

The best exhaust, of course, would be a straight tube from the cat back, chuck the resonator. If you're taking the thing apart anyways, before you commit, try and see how it sounds.


"I don't know nothin' 'bout birthin' babies!"
Re: Performance exhaust question [Re: Noey] #4108450 05/27/16 07:07 PM
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HerrStig Offline
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Originally Posted By: Noey
Originally Posted By: Kool1
Magnaflow mufflers have packing material that lasts longer than standard packing but the sound still changes over time. For American muscle you may want to consider Flowmaster. A custom Flowmaster system on American muscle cars has a sweet tune that's hard to beat.


^This.

The best exhaust, of course, would be a straight tube from the cat back, chuck the resonator. If you're taking the thing apart anyways, before you commit, try and see how it sounds.
There's a good chance that would end up sounding like an old school bus. Bwaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaap.

Re: Performance exhaust question [Re: rooflessVW] #4108468 05/27/16 07:39 PM
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Originally Posted By: rooflessVW
Which one is stainless?

Both are but they are different grades.

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