What mufflers Are you using? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sawlog · 12-20-2018, 10:51 PM

I have long tube headers and chambered mufflers on my sbc 69 c10.
Thinking about going to glass packs right off the headers.
What are all of you using?

**LockDoc** · 12-20-2018, 11:19 PM

Quote:

Originally Posted by Sawlog

I have long tube headers and chambered mufflers on my sbc 69 c10.
Thinking about going to glass packs right off the headers.
What are all of you using?

I am using Hooker cast iron headers and Flowmaster Series 40 knockoffs with pipes all the way back on the Panel Truck. They had a bad drone at about 60 mph so I added "J" pipes behind the mufflers and it sounds great now.

LockDoc

**MySons68C20** · 12-20-2018, 11:26 PM

Excuse my ignorance......what is a J pipe?

**LockDoc** · 12-20-2018, 11:44 PM

Quote:

Originally Posted by MySons68C20

Excuse my ignorance......what is a J pipe?

Short pipes that are shaped like a "J". They weld into the exhaust pipes behind the muffler. They have to be a certain length depending on what RPM the drone occurs. If you type J pipe exhaust into Google it will explain them.

LockDoc

**MySons68C20** · 12-21-2018, 01:52 AM

Wow, I had no idea.....I'm 56 years old and have never heard of that!
I didn't google it but does the tone change much?
Thanks Locdoc!

Blake

**LockDoc** · 12-21-2018, 01:31 PM

Quote:

Originally Posted by MySons68C20

Wow, I had no idea.....I'm 56 years old and have never heard of that!
I didn't google it but does the tone change much?
Thanks Locdoc!

Blake

The guy at the muffler shop I go to had never heard of them either. He couldn't believe what a difference they made in the exhaust sound after he got them installed..... Exhaust still sounds good just no drone at highway speeds.

Here is a chart to calculate the length you need.

You can't just make them any length and expect them to work. That's why I recommend doing some reading on them. I think mine are 23.5 inches long.

LockDoc

Mike C · 12-21-2018, 09:36 AM

Quote:

Originally Posted by Sawlog

I have long tube headers and chambered mufflers on my sbc 69 c10.
Thinking about going to glass packs right off the headers.
What are all of you using?

I wouldn’t even consider a traditional style glass pack, but a Magnaflow style muffler would be ok. And I think tailpipes that exit the rear are a must have as well.

Personally, I want to make good power and be more quiet these days. I’m running Dynomax Hemi Turbo mufflers on my Jimmy and have a second set for my short step when the big block goes in.

I have a set of Jones Turbo Tubes attached to the end of the headers on my AMC 360 in my CJ-5 and that’s always enough to remind me what I don’t want in my truck!

**truckster** · 12-21-2018, 01:36 PM

Quote:

Originally Posted by Sawlog

I have long tube headers and chambered mufflers on my sbc 69 c10.
Thinking about going to glass packs right off the headers.
What are all of you using?

I think you can count on a pretty annoying drone with that combination. If you like noise it should work well.

Ekliptix · 12-21-2018, 01:42 PM

I'm running 3" spintech mufflers, x pipe, hooker headers. It's little loud for me from the inside, but I like the sound from the outside.
https://www.youtube.com/watch?v=J5CxfMAJR5U

For a more mellow tone, I've heard great things about Magnaflow mufflers.

**Speedracer39** · 12-27-2018, 02:34 PM

Quote:

Originally Posted by Ekliptix

I'm running 3" spintech mufflers, x pipe, hooker headers. It's little loud for me from the inside, but I like the sound from the outside.
https://www.youtube.com/watch?v=J5CxfMAJR5U

For a more mellow tone, I've heard great things about Magnaflow mufflers.

What model of spin tech are these — sounds sweet

Ekliptix · 12-27-2018, 06:55 PM

Quote:

Originally Posted by Speedracer39

What model of spin tech are these — sounds sweet

whoops, forgot to specify. 3000.

**Already Gone** · 12-27-2018, 09:48 PM

I put these on my bone stock with factory ram horn exaust manifolds and an H pipe with 2 1/4 inch pipes exiting behind the rear wheels to the side. Seem a touch loud til they warm up then nice mellow tone for normal driving butreally bark when accelerating hard. No drone at Highway speeds.

http://www.dynomax.com/catalogsearch/result/?q=17747

**Boog** · 12-27-2018, 10:25 PM

I would like to see the Revolver Magnaflow truck in person. You know all those muffs sound much different than on video.

rjs53 · 12-27-2018, 10:55 PM

I'm thinking of going with the same mufflers as my Camaro. Got a little rumble under normal driving, when you put your foot in it they have a valve that opens and it comes to life. I'm sure they'll sound different without the LS motor but kinda the best of both worlds for me.

rockyrivermark · 12-27-2018, 10:59 PM

Quote:

Originally Posted by Speedracer39

What model of spin tech are these — sounds sweet

That Does sound great. It's a big block so will sound different than small block in tone.
Nice truck!
Mark

Ekliptix · 12-27-2018, 11:45 PM

Quote:

Originally Posted by rockyrivermark

That Does sound great. It's a big block so will sound different than small block in tone.
Nice truck!
Mark

Like the other guy on here with Spintech's said, they're annoyingly loud on the interior. Magnaflows with electric cut outs would be my preferred choice, next time.

Ekliptix · 12-28-2018, 12:05 AM

Another interesting option: BBK has a muffler you can manually adjust the sound. Like having 3 mufflers in one.
https://www.bbkperformance.com/3-in-...uminized.html#

merlin3 · 12-29-2018, 06:36 PM

Sawlog ;my mufflers are the round 3 inch straight through style, with Sanderson short headers,if you go onto you-tube you can listen to many different manufactures muffler sounds.

rpmerf · 12-21-2018, 03:28 PM

I wonder how J pipes compare to a resonator?

I'm running some kind of Turbo mufflers. Think they are Hookers. I've run turbo mufflers in just about everything I put performance exhaust on. I really like them. Much better sounding than stock, but still quiet enough for a daily driver.

68Stepbed · 12-24-2018, 11:16 AM

Quote:

Originally Posted by Sawlog

Thinking about going to glass packs right off the headers.

Are you trying to make everyone hate you and give yourself a migraine every time you drive it?

Anyway, what's your end goal for sound? Aggressive? Tough, but subtle? Vintage 60s-70s sound? Smooth idle and cruise, but really talks at hard throttle? Piss off your neighbors at 6:00 AM?

davepl · 12-24-2018, 11:43 AM

I really like my big DynoMax. Quiet and low-toned at idle, NO drone at cruise, but loud and angry when under load. Seems like the best of all worlds.

SC1969c10 · 12-25-2018, 09:17 AM

Ive got headers and had a set of turbo mufflers, sounded pretty good but a little on the quiet side. When I did my engine swap, i swapped out for a aet of hooker max flows. The performance is there, but still rather quiet and wimpy sounding?
Posted via Mobile Device

rockyrivermark · 12-25-2018, 11:20 AM

1970 c10
350cu TH350 auto
Mostly stock engine with a few upgrades
Summit ceramic long tube headers
Custom 2 1/2" exhaust
Flowmaster 40 series delta flow
H pipe
Pipes come out under bumper
No drone at all.
Not too loud. Rumples nice at idle
Barks when you step on it.
Normal driving you can hear radio etc. not obnoxious.
A couple videos of the sound. Quiets down after engine warmed up too

https://m.youtube.com/watch?v=Q4hRlBLtOng

https://m.youtube.com/watch?v=s4iNCxKl8RA

**ho70** · 12-25-2018, 12:04 PM

My challenger has flowmasters and is screams a lot (loud) and my c10 402 has magnaflow and they are perfect

merlin3 · 12-25-2018, 06:31 PM

on my 509 merlin3 I'm using Dynomax ultra flo round.I shake my neighbors coffee cup when i drive by his house.

12-20-2018, 10:51 PM	#1
Sawlog Registered User Join Date: Jun 2017 Location: Central illinois Posts: 143	What mufflers Are you using? I have long tube headers and chambered mufflers on my sbc 69 c10. Thinking about going to glass packs right off the headers. What are all of you using? Last edited by LockDoc; 12-20-2018 at 11:13 PM.

12-20-2018, 11:26 PM	#3
MySons68C20 Senior Member Join Date: Sep 2014 Location: Wenatchee, Wa Posts: 923	Re: What mufflers Are you using? Excuse my ignorance......what is a J pipe?

12-21-2018, 01:52 AM	#5
MySons68C20 Senior Member Join Date: Sep 2014 Location: Wenatchee, Wa Posts: 923	Re: What mufflers Are you using? Wow, I had no idea.....I'm 56 years old and have never heard of that! I didn't google it but does the tone change much? Thanks Locdoc! Blake

12-21-2018, 01:42 PM	#9
Ekliptix Registered User Join Date: Aug 2013 Location: Calgary, Alberta Posts: 682	Re: What mufflers Are you using? I'm running 3" spintech mufflers, x pipe, hooker headers. It's little loud for me from the inside, but I like the sound from the outside. https://www.youtube.com/watch?v=J5CxfMAJR5U For a more mellow tone, I've heard great things about Magnaflow mufflers.

12-27-2018, 09:48 PM	#12
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,139	Re: What mufflers Are you using? I put these on my bone stock with factory ram horn exaust manifolds and an H pipe with 2 1/4 inch pipes exiting behind the rear wheels to the side. Seem a touch loud til they warm up then nice mellow tone for normal driving butreally bark when accelerating hard. No drone at Highway speeds. http://www.dynomax.com/catalogsearch/result/?q=17747 __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021

12-27-2018, 10:25 PM	#13
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,434	Re: What mufflers Are you using? I would like to see the Revolver Magnaflow truck in person. You know all those muffs sound much different than on video. Attached Images __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

12-27-2018, 10:55 PM	#14
rjs53 Registered User Join Date: Jan 2010 Location: nevada Posts: 649	Re: What mufflers Are you using? I'm thinking of going with the same mufflers as my Camaro. Got a little rumble under normal driving, when you put your foot in it they have a valve that opens and it comes to life. I'm sure they'll sound different without the LS motor but kinda the best of both worlds for me. __________________ 2003 Dodge 2500 1969 C10 2014 Camaro SS/RS/1LE

12-28-2018, 12:05 AM	#17
Ekliptix Registered User Join Date: Aug 2013 Location: Calgary, Alberta Posts: 682	Re: What mufflers Are you using? Another interesting option: BBK has a muffler you can manually adjust the sound. Like having 3 mufflers in one. https://www.bbkperformance.com/3-in-...uminized.html# __________________ 1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD.

12-29-2018, 06:36 PM	#18
merlin3 Registered User Join Date: Aug 2012 Location: nantucket,ma Posts: 230	Re: What mufflers Are you using? Sawlog ;my mufflers are the round 3 inch straight through style, with Sanderson short headers,if you go onto you-tube you can listen to many different manufactures muffler sounds.

12-21-2018, 03:28 PM	#19
rpmerf Registered User Join Date: Feb 2011 Location: Parkville, MD Posts: 1,024	Re: What mufflers Are you using? I wonder how J pipes compare to a resonator? I'm running some kind of Turbo mufflers. Think they are Hookers. I've run turbo mufflers in just about everything I put performance exhaust on. I really like them. Much better sounding than stock, but still quiet enough for a daily driver. __________________ 1970 C20 Custom Camper - 350, TH350 1997 GMC Suburban 1994 Acura Integra GSR 1987 Dodge Daytona Shelby Z

12-24-2018, 11:43 AM	#21
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: What mufflers Are you using? I really like my big DynoMax. Quiet and low-toned at idle, NO drone at cruise, but loud and angry when under load. Seems like the best of all worlds. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

12-25-2018, 09:17 AM	#22
SC1969c10 Registered User Join Date: Jul 2018 Location: Little River, SC Posts: 105	Re: What mufflers Are you using? Ive got headers and had a set of turbo mufflers, sounded pretty good but a little on the quiet side. When I did my engine swap, i swapped out for a aet of hooker max flows. The performance is there, but still rather quiet and wimpy sounding? Posted via Mobile Device

12-25-2018, 11:20 AM	#23
rockyrivermark Registered User Join Date: Apr 2011 Location: Fairview Park, Ohio Posts: 1,031	Re: What mufflers Are you using? 1970 c10 350cu TH350 auto Mostly stock engine with a few upgrades Summit ceramic long tube headers Custom 2 1/2" exhaust Flowmaster 40 series delta flow H pipe Pipes come out under bumper No drone at all. Not too loud. Rumples nice at idle Barks when you step on it. Normal driving you can hear radio etc. not obnoxious. A couple videos of the sound. Quiets down after engine warmed up too https://m.youtube.com/watch?v=Q4hRlBLtOng https://m.youtube.com/watch?v=s4iNCxKl8RA __________________ My build page http://67-72chevytrucks.com/vboard/s...d.php?t=764662 My cabinet building site http://www.cbcabinets.com

12-25-2018, 12:04 PM	#24
ho70 Registered User Join Date: Nov 2013 Location: Winnipeg, Mb Posts: 1,115	Re: What mufflers Are you using? My challenger has flowmasters and is screams a lot (loud) and my c10 402 has magnaflow and they are perfect

12-25-2018, 06:31 PM	#25
merlin3 Registered User Join Date: Aug 2012 Location: nantucket,ma Posts: 230	Re: What mufflers Are you using? on my 509 merlin3 I'm using Dynomax ultra flo round.I shake my neighbors coffee cup when i drive by his house.



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