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#1 |
Senior Member
Join Date: Sep 2004
Location: Georgia
Posts: 614
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Running quiet muffler W/ Headers
I want to keep the headers that were already on my truck when I got it, but I also want some quiet (real quiet) mufflers. I know that performance would suffer with this combination, but would driveability also be hurt, or would the back pressure be so bad that it might somehow hurt the engine? Thanks for your input.
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![]() 2012 Silverado LT 1500, 5.3, 6 speed auto '86 SWB C-10 Silverado |
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#2 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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Maybe try a muffler from a newer truck, like one of the 6 litres? They are pretty quiet mufflers, and probally would not affect your performance much. Only issue with that idea is that you'd need to go with a single exhaust setup, as if I remember right, those mufflers are real big.
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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#3 |
Registered User
Join Date: Jan 2005
Location: beaumont,tx
Posts: 757
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yea only draw back to newer stuff is that they restrict flow go buy some cheap mufflers like turbo or some off the wall brand
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#4 |
In Progress
Join Date: Feb 2005
Location: Kamloops, BC, Canada
Posts: 312
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im running headers with turbo mufflers and they are still loud. what about a stock muffler?
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1993 Chevrolet K2500 454 4L80E 1974 GMC 1/2t 2wd Stepside 305 auto *sold* 1985 Ford Mustang GT 5.0 5spd |
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#5 |
Chevys Kick A$$
Join Date: Jan 2005
Location: Zootown, MT
Posts: 12,699
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I would say try running some cheap mufflers that are still decent but that are not made to be loud at all. Not quite sure of any brands to reccommend though.
-Later
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*HOODS is what I answer too* -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold ![]() -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit ![]() ![]() -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER ![]() I would rather push a Chevy then drive a ford!!
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#6 |
Registered User
Join Date: Jan 2004
Location: Oklahoma
Posts: 1,057
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I have borlas on my 00 gmc. It is only a hair louder than stock and definatly has a mean growl when accelerating.
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Youth soon passes away, but immaturity can last a life time. |
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#7 |
www.Dubbmotorsports.com
Join Date: Jul 2004
Location: Michigan
Posts: 110
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I have headers with with with 2 1/2 all the way back with flows.... Big block really makes some noise....try getting a cat.
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#8 |
?
Join Date: Jul 2002
Location: Dyersburg, TN
Posts: 471
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I talked to a guy at a local muffler shop telling him I wanted my truck really quiet to hide any hint of a powerful engine and not affect performance to much with restrictive exhaust and he suggested to put glasspacks in front of the mufflers, and that will quieten it down some more. Anybody ever heard of or done this?
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#9 | |
Registered User
Join Date: Dec 2004
Location: New Lenox, IL
Posts: 442
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Quote:
I think I have seen that in an exhaust catalog for factory replacement on some car. |
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#10 |
Registered User
Join Date: May 2004
Location: Lubbock, Texas
Posts: 2,121
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I think running open headers is perfect...
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'96 Nissan Pathfinder '02 Firebird Trans Am. '88 K5 Blazer |
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#11 |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,720
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Putting a cat in the exhaust dosen't quiet it down much if any. My 2"ramhorns/ 2.5" cats/ 40 series flows were still loud as heck. If you want quiet you need stock mufflers. Yes power will suffer some but it wont hurt anything. A small glasspack in front of somthing like a borla or quieter flowmaster might be ok though, its a good idea.
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-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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#12 |
Registered User
Join Date: Apr 2005
Location: Austin, TX
Posts: 1,224
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Crawdad, does the truck already have an H-pipe or X-pipe? If not, adding one should help a little. Also, where do the exhaust tips exit from under the truck?
Glasspacks would definately take some of the harshness out, similar to a resonator. But I would put them after the muffler, not in front. Heat is what breaksdown the fiberglass, so the farther back in the system they are, the longer they will last.
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- Greg |
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#13 |
Active Member
Join Date: Mar 2005
Location: Stoughton, WI
Posts: 187
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What kind of system's currently on your truck?
I have a number of friends who swear by Dynomax Super Turbos as a good combination of noise level, sound quality, and performance. If you can put the mufflers farther back you can neck down the tailpipes to 2-1/4" and that may help as well. Brad |
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#14 |
Senior Member
Join Date: Sep 2004
Location: Georgia
Posts: 614
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No H pipe, and they don't exit. Well, the pipes don't extend out the truck bottom. They just point down just in front of the wheels.
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#15 | |
Registered User
Join Date: Apr 2005
Location: Austin, TX
Posts: 1,224
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Quote:
An H-pipe would help even out the exhaust pulses. I have seen quotes range from $20 to $45 to have a H-pipe installed at a muffler shop. But I think the bigger problem is the turn downs under the truck. That can, and will, cause the whole truck to resonate at certain frequencies and actually amplify the sound. If you were to add some tailpipes to go over the axle and either exit under the rear bumper, or to each side behind the wheel, it would make it much quieter inside the cab.
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#16 |
Registered User
Join Date: Feb 2005
Posts: 88
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Do you want to hear samples .....Flow master has a place {web} to hear dif types of mufflers as well as engine set ups ford ,chevy . Under the features on the left .Ill try linking you here --- copy and paste this ---or click on below link .
http://www.flowmastermufflers.com/cg...ml?id=CCwYxooz Last edited by JustOneTruck; 05-24-2005 at 12:49 PM. |
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#17 |
www.73-87chevytrucks.com
![]() Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
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If you exit it out in front of the rear tires it will be louder than running it out the back. As for Quiet mufflers, I suggest Dynomax Super Turbo's. The are not that loud and don't hurt flow. If you are wanting quiet, I wouldn't go with glasspacks.
You can hear them here: http://www.dynomax.com/sounds.stm
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Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com |
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#18 |
Senior Member
Join Date: Sep 2004
Location: Georgia
Posts: 614
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My objective is to quiet down the entire system both to myself in the cab and to my neighbors. The mufflers/tailpipes that are on there now were just thrown together from pieces by my nephew and his teenage friend. They are so loud, they purely hurt your ears. I'm tearing out everything except for the mufflers and plan to put in new mufflers (brand ?), and new tailpipes straight out the back. I've got a muffler shop ready to do it for me. I'm just trying to decide which brand to go with that will give me (1) a fairly free-flowing system, and (2) a quiet system. I don't mind a little throaty rumble as long as it doesn't sound like a Harley with straight pipes when I accelerate. BTW, the Dynomax sounds pretty good.
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![]() 2012 Silverado LT 1500, 5.3, 6 speed auto '86 SWB C-10 Silverado Last edited by crawdad; 05-24-2005 at 08:29 PM. |
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#19 | |
Senior Member
Join Date: Sep 2004
Location: Georgia
Posts: 614
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Quote:
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![]() 2012 Silverado LT 1500, 5.3, 6 speed auto '86 SWB C-10 Silverado |
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#20 |
Registered User
Join Date: Dec 2003
Location: here
Posts: 5,789
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An "H" pipe will quiet it a BUNCH & run tail pipes all the way out the back. The longer the pipes are the quieter it will be. From past systems Ive used, Ive noticed that installing the mufflers clear in the back will make it a lot quieter in the cab too. Good luck with it...corn
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#21 |
Registered User
Join Date: Jan 2004
Location: Paso Robles, CA
Posts: 347
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Flowtech Turbos or something like that from Kragen 20 bucks a piece. Nice sound on my truck with headers
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Tony ![]() "Life is a Team Sport" To the memory of the Hendrick Motorsports Plane Crash Victims |
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#22 | |
Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
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ive got hedman headers, 2 1/4" pipe, and summit turbo mufflers and pipe exiting at a 45 degree behind each wheel on my 89, its really quiet but sounds pretty good... the summit turbos are only $15 each
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ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
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#23 |
Senior Member
Join Date: Nov 2004
Location: glen burnie md
Posts: 447
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I have mine coming out the back of the truck and most people cannot really hear them. I would not keep them in the front due to the fumes. Just my thoughts.
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This is my best friend |
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#24 |
Senior Member
Join Date: Mar 2003
Posts: 2,500
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I HATE loud trucks!! or cars
The real goal I had years ago was a set of headers and mufflers that had around 2 psi back pressure with no noise. People putting on a set of loud mufflers just says to me "they must REALLY want attention" 'cause they didn't get it as a child. There is NO valid reason (to me) why one would make there vehicle loud.......they claim to want more power doing that but you can do that without the noise. I did it with a set of Hooker headers and two Dynomax Hemi Super Turbos (part 289-17789 from Jegs) and I have no noise and very little back pressure. The easy way is open headers but the legal and hard way is little back pressure and headers. Wanna argue? State the back pressure of your system and the decibal level Last edited by Mike76251; 05-25-2005 at 02:52 PM. |
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#25 | |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,720
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Quote:
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-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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