MagnaFlow vs Flowmaster vs Straight Pipes

[Jrgunn5150]

That's why I said its a wash, do it however is easiest/cheapest.

 

[MikeB]

To answer the OP's original question: Depends on what you're looking for. Some love the Flowmaster sound, others the straight-thru muffler sound.

In one of his books, David Vizard said his dyno testing showed the Walker DynoMax Super Turbos flowed better than chambered Flowmasters. I have a pair of the large case Super Turbos on my 82 C10, and my son's 69 C10 still has a pair I installed around 15 years ago, which tells me they are well made. They have a nice little rumble, but are nowhere near as loud as even a Delta 50 Flowmasters, and drone is maybe 10 on a scale of 100.

 

[87scotty]

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I call ******** on the whole mess and they prove it for gain and loss it’s all about the same only real difference is sound no one method is any better then the other as far as hp and torque.

Didn't this episode prove true duals cost power without h or x

 

[Honky Kong jr]

Didn't this episode prove true duals cost power without h or x

By an infinitesimal amount not worth worrying about when I rewatched it I wrote down numbers for all 3 but they are at home. I was gathering ammo Incase an argument ensued. Lol

 

[4WDKC]

You can do that, or a dual in dual out muffler are what I would do.

Not all manufacturers have the muffler you may want in that configurration, this would allow you to use what ever muffler you wanted.

 

[Jrgunn5150]

Not all manufacturers have the muffler you may want in that configurration, this would allow you to use what ever muffler you wanted.

I want to use a Magnaflow, which does offer that lol.

 

[87scotty]

The max up and tq wasn't much different but the low end is where the power was made from having the crossover

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[Honky Kong jr]

The max up and tq wasn't much different but the low end is where the power was made from having the crossover

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Was your engine dunked with exhaust or open headers? To me now worth it especially with space constraints on a 4x app was gonna do a cross over above the tail shaft but decided it’s more obnoxious the way it is lol

 

[DoubleDingo]

Wouldn't a properly sized single exhaust make as much power as the h-pipe and x-pipe? It's all about scavenging right and those three setups all scavenge, helping the engine to breathe.

 

[4WDKC]

I want to use a Magnaflow, which does offer that lol.

Wouldn't a properly sized single exhaust make as much power as the h-pipe and x-pipe? It's all about scavenging right and those three setups all scavenge, helping the engine to breathe.

Yes but people prefer duals.

 

[DoubleDingo]

Yes but people prefer duals.

I was one of them until I bought my '81 with single exhaust and it has ample power. It even sounds way cool with vortec growl coming from the single exhaust. It's 2.5 inch all the way through.

 

[Jrgunn5150]

Wouldn't a properly sized single exhaust make as much power as the h-pipe and x-pipe? It's all about scavenging right and those three setups all scavenge, helping the engine to breathe.

Yes, and it would be cheaper to build, and easier to package... But you can't tell people about your ole tree fiddy fo bolt main wit dem true duals

 

[87scotty]

so id need a single 6inch pipe haha

 

[87scotty]

Was your engine dunked with exhaust or open headers? To me now worth it especially with space constraints on a 4x app was gonna do a cross over above the tail shaft but decided it’s more obnoxious the way it is lol

that was the engine masters diffrence i didnt do the comparison when we ran mine just figured it was worth it to run an h

 

[Honky Kong jr]

that was the engine masters diffrence i didnt do the comparison when we ran mine just figured it was worth it to run an h

It will give you a more subtle even exhaust note with one, I like when it sounds like you can hear each cylinder fire. Lol