[64speed]

I have to get different mufflers, I can’t go thru a drive thru without cutting it off LOL. My FIL came last night and the first thing he said was it’s loud

[HWYSTR455]

Dynomax Super Turbo is the go-to, you might be able to get a 20" case under there, but 18" will definitely fit.


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[HWYSTR455]

Here's the 442 at idle with the 495 stroker, headers, 2.5" pypes setup, with Dynomax Super Turbo 18" cases.

https://youtu.be/YRV4ths-RlY


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[64speed]

Originally Posted by HWYSTR455

Dynomax Super Turbo is the go-to, you might be able to get a 20" case under there, but 18" will definitely fit.


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Where can I hear a sound clip?

[HWYSTR455]

Originally Posted by 64speed

Where can I hear a sound clip?

Posted above...

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[64speed]

Thank you

[64speed]

Even in SC at 70 in the morning she is cold natured.

[1968GTO421]

Are you currently using the Black Widow Exhaust "Neighborhater" Mufflers? They do sound like those though. I think you like the recommended Dynomax Super Turbos, they have a good sound but quieter.

[64speed]

No not the neighborhaters. They are supposed to be the quietest ones

[HWYSTR455]

The super turbos with an X pipe is as quiet as you can get without sacrificing power. At wide open throttle, they still are kind of loud, but no where near other mufflers I've run.

What do you mean by 'cold natured'? Like it doesn't fast idle and warm up without playing with the throttle?

Just to say, you shouldn't drive it 'cold', always let it warm up some, 160 coolant temp min, and never hammer it with cold oil.


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[64speed]

If anyone wants these mufflers PM me and we can strike a deal.

[Scarebird]

Originally Posted by HWYSTR455

The super turbos with an X pipe is as quiet as you can get without sacrificing power. At wide open throttle, they still are kind of loud...

What I have; 2-1/2" X with 17749's - noticeable.

Cammed 5.3 L84 with above:

https://www.youtube.com/watch?v=wIzaD6zvI9c

[tom s]

What size pipes do you have?If 3in it is hard to get them to a decent level.I went too 2.5 with Hushpowers and like them a lot.For my get up at 5:30 and drive to a AM car show I only drive my 62 GP as it is WAY more quiet than the other 2 cars and has a heater for winter.Tom

[64speed]

It’s 3 inch exhaust but apparently these dynomax are 2.50 on the inside.

[64speed]

I ordered 17743 part number

[tom s]

I have not found Dynomax quiet on anything I have put them on,good luck.Tom

[Scarebird]

Those are really short, won't quiet much.

[Gach]

Originally Posted by 64speed

I ordered 17743 part number

Are those Dynomax ?

[Gach]

I could just tell you from experience 3” exhaust with a muffler thats 2.5 is not going to make very much of a difference, may sound a little different but not as noticeable quieter amount. Straight 2.5 exhaust with 2.5 mufflers will. At least it wasn’t for me.
I might as well let the $450 I spent making changes might as well have thrown the money out the window.

[64speed]

Ok I cancelled the order cause you guys are right I ordered the short ones on accident. I have an appointment at the exhaust shop next Thursday for the broken hanger so I will just see what they have then.