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#1 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,122
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Quiet stainless steel muffler
I am having an exhaust installed on a 4 X 4 Blazer next week. I am going stainless steel. I can not stand the exhaust that is on it now. Loud and an annoying drone.
All the stainless mufflers are a "performance" muffler. What is the quietest stainless muffler you know of. I want almost stock quiet. Thanks Mark
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#2 |
Registered User
Join Date: Jul 2015
Location: Sedalia Mo.
Posts: 1,131
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Re: Quiet stainless steel muffler
I have dual Dynomax 17749 mufflers on my 72 with a 400ci/350hp/exhaust manifold motor. It is nice and quiet with some rumble with a heavy foot, but not much.
The Dynomax 17629 is the shorter SS version and would not be as quiet, but it's the closest Dynomax offers in SS.
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He who is without oil shall throw the first rod. Compressions 8.7:1 1972 C10 1976 C10 (parts truck) 1985 K20 |
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#3 |
Registered User
Join Date: Mar 2020
Location: Portland, OR
Posts: 335
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Re: Quiet stainless steel muffler
The secret to a quiet exhaust is to keep the exhaust tube diameter as small as practical and the muffler as large as possible. Another tactic is to make sure to use a resonator and a muffler.
You can browse the magnaflow, or whichever brand you prefer, catalog and find the largest stainless muffler that will fit under your blazer. |
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#4 |
Senior Member
![]() Join Date: Mar 2015
Location: washington
Posts: 2,211
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Re: Quiet stainless steel muffler
You didn't mention if you have headers or not.
Everything being equal the vehicle with headers will be louder. Rick |
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#5 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,122
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Re: Quiet stainless steel muffler
Stock exhaust manifolds
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#6 |
Senior Member
![]() Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,254
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Re: Quiet stainless steel muffler
I have cheap Thrush turbo mufflers on my truck, 402 with headers, its not loud until you get into it. The rest of the exhaust is stainless, so I am thinking about going with Dynomax 17772 to replace them.
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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#7 |
Registered User
Join Date: Apr 2009
Location: PNW
Posts: 553
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Re: Quiet stainless steel muffler
Walker Quiet-Flows are stainless. Get the longest one they have.
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#8 | |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,122
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Re: Quiet stainless steel muffler
Quote:
This was their reply. I find it hard to believe they don't have something that will work. "Mark, Thanks for your inquiry. I’m sorry we no longer offer stainless steel mufflers for your application. Here’s a link to the Walker products that we offer for 1972 Chevrolet Blazer."
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Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 Last edited by Thealien; 07-10-2021 at 03:48 PM. |
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#9 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,122
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Re: Quiet stainless steel muffler
Any more suggestions?
Thanks
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Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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#10 |
Registered User
Join Date: Apr 2009
Location: PNW
Posts: 553
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Re: Quiet stainless steel muffler
If you are redoing the exhaust system, all you need is a universal fit oval case muffler. I bet they make one that works, but you have to get past the lazy GenZ'r to find someone willing to look up specs for that muffler line to find out. Try sending them just the size and shape of the Quiet-Flow you need, and nothing about what vehicle it is going under.
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#11 |
Registered User
Join Date: Apr 2009
Location: PNW
Posts: 553
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Re: Quiet stainless steel muffler
Walker 21481 is an oval 20" case offset in/out
Walker 21543 is an oval 30" case offset in/out (almost certain to be quieter) I'm sure there are others. Last edited by jimijam00; 07-13-2021 at 06:52 PM. |
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#12 | |
70+ ( Old Skool Club )
![]() Join Date: Nov 2003
Location: Saskatoon, Saskatchewan ,Canada
Posts: 9,105
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Re: Quiet stainless steel muffler
Quote:
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