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Old 04-17-2019, 11:25 AM   #26
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Re: Best sounding mufflers

Originally Posted by Tom View Post
That's really weird, the 50's are 3 chamber and made to eliminate the drone associated with the two chamber 40 series. My single 50 series is very quiet compared to the dual 40's in my 78.
That's one of the reasons I went with the 50 series. They sounded great from the tailpipes, but had horrible drone in the cab. That's the last set of Flowmasters I've bought. My 05 had a Flowmaster on it, but it got swapped out for a Magnaflow also.

68 C10 stepside, LS1/700R4, TCI Engineering suspension system
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Old 04-17-2019, 05:27 PM   #27
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Re: Best sounding mufflers

Originally Posted by 808_67C10 View Post
My 40s sit right under my seat and they sound great... no drone at all. I have dynamat on my floor too though but, even when I didnt in my 67, it sounded fine... I think it all depends on personal preference.

Some like it loud, some like it subtle... you gotta figure out which team you are on!
Im with you on this one. My dual 40's on my 78 are under the bed and out the tail. My 50 on my 98 is under the cab and immediately dumps down, no exit outside the truck/totally hidden setup. The 40's are at least twice as loud with bad interior drone while the 50 is quiet as an aftermarket muffler gets IMO.
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle.
-98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes.
-02 Suburban 4x4: stock
-CBR600F4i, CBR600RR, CBR1000RR, and standup skis
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Old Yesterday, 10:51 AM   #28
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Re: Best sounding mufflers

i plan to try the summit branded magnaflows, I get a bit of low rpm drone with my super 40's w/ x-pipe, dumped before the axle.
1974 GMC
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Old Yesterday, 03:17 PM   #29
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Re: Best sounding mufflers

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Old Yesterday, 06:59 PM   #30
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Re: Best sounding mufflers

Straight pipes. The most beautiful and last thing you’ll ever hear. 😂
1974 C30 Dually Longbed
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