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#1
09-19-2023, 04:16 PM
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Looking for muffler similar to Dynomax Super Turbo
I need a shorter muffler than the Dynomax super turbos but with similar characteristics, i.e., quiet but still flows well. Need less than 18" overall length for a dual exhaust system under my old F250. Does anybody use a short but relatively quiet muffler that breathes?
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1963 Catalina 2 door hardtop 1968 Catalina 2 door sedan |
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#2
09-19-2023, 04:24 PM
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The Dynomax Super Turbo 17734 is 2-1/2” offset/offset and has a 14” long case.
It is louder than the 20” long 17749 but does flow pretty well, maybe too loud for what you’re trying to do unless you’re adding resonators.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
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#3
09-20-2023, 11:25 AM
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I've got Flowmasters (maybe 50 series) on the truck now and they're too loud. Looking for that Dynomax tone but the 17749s are way too long.
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1963 Catalina 2 door hardtop 1968 Catalina 2 door sedan |
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#4
09-20-2023, 12:55 PM
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I bought a set of each (17734 and 17749). I put the short ones under my '79 10th Anniversary Trans Am (Olds 403) and the long ones under my '67 Cutlass (Olds 330). I didn't find the noise objectionable in either one.
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Mike 
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#5
09-20-2023, 01:38 PM
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10 4, thanks
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1963 Catalina 2 door hardtop 1968 Catalina 2 door sedan |
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#6
09-20-2023, 11:04 PM
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As many know, Pontiac used different length mufflers on dual exhaust systems. Would using a Dynomax 17743 & a 17749 on an A-Body help with potential drone?
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#7
09-21-2023, 11:53 PM
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I have the 16" 17629 Dynomax SuperTurbos on my GTO. Here is what they sound like with 2.5" exhaust with H-pipe and long-tube headers: https://youtu.be/kXVLnazCMtw?si=HLnLT77jF8beTvQK
Helps a lot to use headphones when watching the video.
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 1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
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#8
09-22-2023, 11:12 AM
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Those sound good! Thanks
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1963 Catalina 2 door hardtop 1968 Catalina 2 door sedan |
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