Best deep muffler for 5.7

[99xcss4]

If you can find one of these make sure to let us know!!

https://volant.com/collections/c-k1500-c-k-2500-c-k-3500/products/closed-box-air-intake-15974 https://volant.com/collections/c-k1500-c-k-2500-c-k-3500/products/closed-box-air-intake-15857 you can not get this next one direct but maybe some sites might still have some left https://volant.com/collections/c-k1500-c-k-2500-c-k-3500/products/closed-box-air-intake-15957-150576

 

[454C2500Longbed]

I believe that a cross pipe (H or X) also contributes to scavenging.

As far as I know, only an X-pipe does, as both help balance the exhaust pulses traveling through the pipes, but the x-pipe does so much more efficiently and fluidly. H pipes often sound better though.

 

[Sean Buick 76]

I believe that a cross pipe (H or X) also contributes to scavenging.

I’m under the impression that when using long tube headers the merge point is in a location close enough to the cylinder valves to allow a vacuum effect or scavenging. Further down the exhaust such as an X pipe it’s just too far from the valve to have an effect on the vacuum pulses at the combustion chamber. The X can still help in some cases, I do believe it offers a few HP if placed in the right location however I think the benefit is more the “sharing” of the exhaust pipes volume decreasing the restriction.

Then there is the sound difference between the true dual, x pipe and h pipe options. Some prefer one over the other, myself it’s duals all the way. Others prefer the x, each to thier own. On a street vehicle under 500 Hp it’s more so out sound preference than HP potential. I’m a true dual guy, just a preference and it’s not a limitation as long as the system is sized correctly.

On race cars they normally just run equal length long tube headers to scavenge the exhaust pulses.

 

[99xcss4]

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[99xcss4]

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[joog]

My 2 cents on my current set up. I haven't heard anything sound better come from a stock 5.7. No drone, however it is somewhat loud. Cruising with the windows up you can have a perfectly fine conversation with your passengers. With the windows down, not so much. I'm running a K&N CAI (this will change the tone for sure) breathing through Gibson shorty headers into Magnaflow high-flow cats into a custom X pipe into 12" Thrush Glasspacks, split exit diagonally behind the rear wheels. All connected with 2.5" fully welded 304 Stainless. No tips. When you stomp on it, it definitely sounds like you're at the drag strip. Cruising is loud but not unbearable. I like exhaust noise and hate my neighbors.... so I couldn't ask for a better exhaust. It really woke up my suburban.

How is that cold air intake? I hear both sides of it. Stock they’re cold air intake, do you notice any difference positive or negative with the k&n?

 

[Laredo]

That would be great, and a parts # or name?

Catalytic converter system: part no. 23453.
Cat-back system: part no. 15602.

 

[PlayingWithTBI]

On race cars they normally just run equal length long tube headers to scavenge the exhaust pulses.

Back in2008, i took my son to a 3 day weekend of NASCAR racing in PIR (Phoenix International Raceway at the time) and saw this on one of their Craftsman Truck's display. Tri Ys with ginormous exhaust and H pipe! I know they don't do that just for sound quality.

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BTW, neat rear suspension too.

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[Sean Buick 76]

Back in2008, i took my son to a 3 day weekend of NASCAR racing in PIR (Phoenix International Raceway at the time) and saw this on one of their Craftsman Truck's display. Tri Ys with ginormous exhaust and H pipe! I know they don't do that just for sound quality.

You must be registered for see images attach

BTW, neat rear suspension too.

You must be registered for see images attach

What a work of art! Beautiful! I have tri Y headers on my turbo car.

 

[John DeWitt]

Correction, the Magnaflow 12468 or the HP2 by Flowmaster

Of course, I have wondered if running the 12468 & a Flowmast FX directly behind each outlet would maybe create not just better scavenging & flow but a more throaty tone.