The 1947 - Present Chevrolet & GMC Truck Message Board Network - true duals vs single in dual out muffler

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- - true duals vs single in dual out muffler (https://67-72chevytrucks.com/vboard/showthread.php?t=562100)

ivorton74

01-22-2013 09:39 PM

Re: true duals vs single in dual out muffler

yeah...the local muffler guy quoted me over $300...my buddy just got true duals on his 94 gmc k1500 for $380...that's a lot...man I wish I knew how to weld.

ivorton74

01-22-2013 09:49 PM

Re: true duals vs single in dual out muffler

Quote:

Originally Posted by Billett (Post 5836379)

Here's a bit of info that helped me make my decision:

It's all about what sound you like. Flowmasters do flow less than other brands. I'll never claim differently. However, magnaflows flow about 30 CFM more, and make a whopping 3 more hp and 1 ft lbs of torque than a 2 chamber flowmaster. Both measure out at roughly the same decibel level throughout the power band. For comparison, a Hooker Max Flow flows 270 CFM more than a flowmaster and makes 4 more hp and 2 ft lbs of torque.

This means on your average DD the flow really doesn't make a d@mn bit of difference. It comes down to what sound you want to hear when you turn that key. Oh, and definitely go stainless.

im tryin to make this truck into a nice cruiser. im just lookin for sound not power so much yet...my 350 is getting tired and im getting it ready for a 5.3 swap later on. I just like how they sound period. its my preference. your truck helped me make my decision...I love how it sounds lol...

Billett

01-22-2013 10:00 PM

Re: true duals vs single in dual out muffler

I drive mine from SJ to Philly and back around twice a week along with other small trips. It makes itself known, but I don't think it's obnoxious for a truck with no cats. The best thing I did was make it exit out the rear. The fact that the pipe exits so far behind me (8 ft. bed haha) makes it great for driving long distances. I get a bit of drone, but that's because of the NP435 and 4.11 gears, being terrible for highway driving. I think having it exit before the rear tires would make it a bit louder but still bearable. I grin every time I drive it.

68Timber

01-22-2013 10:01 PM

Re: true duals vs single in dual out muffler

I put an 18" single in/dual out Magnaflow on my daughters truck, no cat. It had a really great deep sound. I can't do flows again. This is just me, but they don't sound good to me anymore at all except on a lopey engine at idle. The chambered muffler makes the cam sound bigger and "lope" really well. I'd rather have a better overall sound than the best sound at idle.

GM-power

01-22-2013 10:13 PM

Re: true duals vs single in dual out muffler

Magnaflows are all right, but around here everybody and their mother has them; had to do something different.
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motornut

01-22-2013 10:15 PM

Re: true duals vs single in dual out muffler

5 Attachment(s)

Quote:

Originally Posted by Billett (Post 5836440)

I think having it exit before the rear tires would make it a bit louder but still bearable. I grin every time I drive it.

I can say that too lol
you hear, more then you see lol

68Timber

01-22-2013 10:21 PM

Re: true duals vs single in dual out muffler

Quote:

Originally Posted by GM-power (Post 5836498)

Magnaflows are all right, but around here everybody and their mother has them; had to do something different.
Posted via Mobile Device

That's what it's been like here in the SE with trucks and flows for the last 15 years. I completely understand gettting fed up with a particular sound.;)

ivorton74

01-22-2013 10:37 PM

Re: true duals vs single in dual out muffler

just around where I live...everyone has glasspacks, magnaflows or straight-pipes....I just want something different too. my bro in law has a 87 r10 with straight pipes and I get a headache riding in that thing.

Billett

01-22-2013 11:06 PM

Re: true duals vs single in dual out muffler

If I had to do it again I would go with Hookers just to try something I haven't before. Heard good things about them and spintechs. Hookers max flows are cheap too

cory d

01-23-2013 02:14 AM

Re: true duals vs single in dual out muffler

i read through this before i did mine. ended up with 2.5" summit welded mufflers (flowtech afterburners in a white box). sounds like a turbo mufler just a little more noise then some, decent flow and inexpencive. i did it mysel headers back for well under 200 http://67-72chevytrucks.com/vboard/s...d.php?t=263014

dman1982

01-24-2013 08:20 PM

Re: true duals vs single in dual out muffler

if you plan on doing a swap...id say f it and just wait and do it right the first time...save your money like alot of the guys are saying...if you plan on sticking with a small block 350 get it done right man, i did the weld job on the first set of exaust i put on my truck and wish i would have done it right the first time

ivorton74

03-06-2013 02:35 AM

Re: true duals vs single in dual out muffler

UPDATE...got my exhaust done finally...true duals with flowmaster 40s...pretty happy with it so far.will try and post a vid soon as I can

motornut

03-06-2013 07:40 AM

Re: true duals vs single in dual out muffler

Quote:

Originally Posted by ivorton74 (Post 5930365)

UPDATE...got my exhaust done finally...true duals with flowmaster 40s...pretty happy with it so far.will try and post a vid soon as I can

cool, must sound sweet
bet you start smiling ,sitting at a light!
Posted via Mobile Device

77ChevySharkBite

03-06-2013 09:48 AM

Re: true duals vs single in dual out muffler

Sweet!!!! I almost went with the 40's series on my truck but everyone here in the Houston area has that so I wanted to be different so I went true dual 10's with headers, I feel like a little kid everytime that monster cranks up! I could sit and listen to it idle all day if it was possible.

lbrowne

03-06-2013 04:10 PM

Re: true duals vs single in dual out muffler

Quote:

Originally Posted by INSIDIOUS '86 (Post 5834381)

Dyno max also has a dual system for $132 on summit. Add mufflers and your done. Two flobastards cost about that much
Posted via Mobile Device

Isn't that the kit that exits before the rear wheels though? I want duals too, but I want then to exit out the side behind the wheels.

79Betty

03-06-2013 06:07 PM

Re: true duals vs single in dual out muffler

As long as u like it that's all that matters.
Posted via Mobile Device

nheller76

03-06-2013 07:34 PM

Re: true duals vs single in dual out muffler

Quote:

Originally Posted by Redcap (Post 5834418)

"This single exhaust sounds so much better than duals"

...said no one ever.

Haha that's very true
Posted via Mobile Device

ivorton74

03-06-2013 08:33 PM

Re: true duals vs single in dual out muffler

Man I love how my truck sounds so much I just look for any excuse to drive it and I love steppin on it now lol...I just got home from work and took it out again to the store for gas..just to drive it. I freakin love it! It exits in front of the rear tire...I thought it was gonna have this annoyin drone but its fine so far. No complaints it all.

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