Muffler Preferences - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Lobo'74 · 08-05-2003, 01:49 PM

Another question for y'all. The mufflers that came on the '67 are four cherry bombs, two per side. The former owner/rebuilder said one was too loud hence the two per side. Pipes come out just in front of the rear tires.

This set up is too high pitched and too loud. I am planning on Flowmasters. The 50 series sounds good on the flowmaster web site. Lower tone than the "original" Flowmaster 40 series, not as quiet as the Flowmaster 70 series. Loud and throaty enough that it sounds cool - not so sharp and loud that it frightens small children, causes dogs to bark and women to faint.

Anyone out there have any experience with the different Flowmaster mufflers? Or any other suggested setups?

Thanks.

72c10step · 08-05-2003, 02:10 PM

There's a pair of 40 series on this one that I saw at a car show over the weekend. Could barely tell they were on there when it was idling, but when he revved it up, it had a nice bark to it. BTW, it's got a ZZ4 in it.

**CPNE** · 08-05-2003, 02:17 PM

I know that truck from somewhere. Is the owner from the Portsmouth area of our state?

72c10step · 08-05-2003, 03:07 PM

I can't remember what it said on the paper in the window. All I can tell you is that I saw it at NHIS this past Sunday, should have paid more attention as to who owned it.

miket · 08-05-2003, 03:44 PM

Lobo74,

Check out my site...I have sound clips of 40's with 3" on a 71 with a ZZ502, Dynomax Turbos with 2-1/2" on my Suburban with the 496 and Dynomax race muffs on my Chevelle.

Personally, if you aren't after the fainting women...50 or 70 series flows aer nice and it might be worth listening to Magnflows with a crossover pipe.

**Palf70Step** · 08-05-2003, 07:09 PM

I have 50 series on the 350 on my 96...love them Nice rumble when you mneed it, but it doesn't drive you nuts on long interstate drives. I'm probably going to use same thing on the 70 when ever it gets back on the road and even if it is a 6.

mtdave2 · 08-05-2003, 07:19 PM

magnaflows all the way. love these mufflers!

68CST327 · 08-05-2003, 07:28 PM

Magnaflows! (post your videos Dave!

)

rin68 · 08-05-2003, 08:20 PM

i'll be putting some Hooker AeroChambers on mine on Thursday, heard good things about their sound, and they outflow the Flowmasters. good or bad, i'll post my thoughts on em later

yooper · 08-05-2003, 08:25 PM

I put 50 series delta flows on my 71 this past saturday. I've got a fairly mild 350 with headers. It sounds pretty good. Deep throaty sound. Personally I though it was going to be louder than it is and wish I would have went with something different.

I'll sell ya the 50's if your interested so I can put some delta flow 40's on. Dont get me wrong it sounds nice but ijust like them louder.

mtdave2 · 08-05-2003, 09:41 PM

http://mtdave2.com/driveway.rm
http://mtdave2.com/twe.rm

i think thats the links

*Shane* · 08-05-2003, 09:55 PM

magnaflows here too ....

ChevLoRay · 08-05-2003, 09:56 PM

I am running a pair of 40-series on my '69, with 2.5-inch inlet and outlet, no H-pipe (but need it) dumping right in front of the rear tires. Sounds good, especially echoing off of the construction barricades on I-30.

I think I'm gonna take the muffler off of my '91 Celica and put on the pair of resonator tips I used to have on my '81 El Camino. No other muffler, just a Y-pipe and two resonators with their chrome tips. Couldn't sound any worse that the "Phartmaster 2000's" that I hear on the rest of the ricer's stuff.

I had a '66 Pontiac resonator on my old '60 Triumph TR-3. No other muffler. It would rattle the store windows in downtown Little Rock....you could see 'em vibrate!

Slammed67 · 08-06-2003, 10:07 AM

Dynomax Super Turbos.

ChrisK10 · 08-06-2003, 11:25 AM

Dave what can I use to run an RM file?

67cst · 08-06-2003, 12:21 PM

is there anything as loud or louder than 40 series flowmasters that are steet legal

miket · 08-06-2003, 12:31 PM

Yes, anyone of the "Race" mufflers offered by Flowmaster, dynomax, etc...etc....

pappadow · 08-06-2003, 12:49 PM

IMO flowmasters suck. I like the sound of dynomax ultraflows better, it's deeper, and doesn't have that flowmaster Raspy sound.

mtdave2 · 08-06-2003, 12:55 PM

real one player is what plays it... im trying to figure out how to post it a differant way

NSANE68!!! · 08-06-2003, 02:44 PM

SCREW those Flowblockers

MAGNAFLOW'S all the way and they out flow the flowmasters.

**JIMs70GMC** · 08-06-2003, 06:46 PM

Don't know who makes them for Summit, but their welded mufflers (chambered) sound good.

lukecp · 08-06-2003, 07:03 PM

Flowmaster Delta Flow 40's. I love them. They aren't tinny at all...just really deep, throaty and loud. They are pretty loud, and i turn heads everywhere with them. I would go with the 50 series Delta Flows. Regular flowmasters do have a kind of tinny sound too them, but the Delta Flows have more of a mellow, deeper sound.

**smitty62** · 08-06-2003, 09:21 PM

Don't EVER put flowmasters on a vehicle you're proud of!!!!!!!!!!!!

miket · 08-06-2003, 09:50 PM

I like the sound of different systems for different vehicles. I do like the Flowmasters, Dynomax Turbo's and the Magnaflows are okay too...it depends on what vehicle and the purpose it serves.

In fact one of the best sounding systems I had was on my first truck...a 73 Jeep J4000 4X4....lifted 4" with 33X12.50X15's, Dana 44 front/Dana 60 5 lug rear/360 V-8--headers and 12" blown out glasspacks with turndowns.

Chevyguy111786 · 08-06-2003, 11:01 PM

I've got the Summit Welded mufflers. From what i understood they make them theirselves. They sound AWESOME at idle. but when you get into it it doesnt really have any bark to it. So to sum it up, (no pun intended) They sound good at idle but they do nothing for me any other time. They say they add up to 21 horsepower tho...i think i squeezed out 1 or 2...eh. they're only 15 bucks a piece plus shipping, so it's pretty good

08-05-2003, 01:49 PM	#1
Lobo'74 Registered User Join Date: Nov 2002 Location: Charlottesville, VA Posts: 404	Muffler Preferences Another question for y'all. The mufflers that came on the '67 are four cherry bombs, two per side. The former owner/rebuilder said one was too loud hence the two per side. Pipes come out just in front of the rear tires. This set up is too high pitched and too loud. I am planning on Flowmasters. The 50 series sounds good on the flowmaster web site. Lower tone than the "original" Flowmaster 40 series, not as quiet as the Flowmaster 70 series. Loud and throaty enough that it sounds cool - not so sharp and loud that it frightens small children, causes dogs to bark and women to faint. Anyone out there have any experience with the different Flowmaster mufflers? Or any other suggested setups? Thanks. __________________ "Truck" '67 small window '79 350 .030 over, LT1 "clone"

08-05-2003, 02:10 PM	#2
72c10step WHYBYNU when old will do? Join Date: Jul 2003 Location: Loudon, NH Posts: 876	There's a pair of 40 series on this one that I saw at a car show over the weekend. Could barely tell they were on there when it was idling, but when he revved it up, it had a nice bark to it. BTW, it's got a ZZ4 in it. Attached Images __________________ -72 Chevy C10 Stepside -2002 Chevy Silverado 2500HD 4x4 -1984 Jeep CJ7 -1995 Polaris XCR600 Custom -2003 Honda 300ex

08-05-2003, 02:17 PM	#3
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	I know that truck from somewhere. Is the owner from the Portsmouth area of our state? __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

08-05-2003, 03:07 PM	#4
72c10step WHYBYNU when old will do? Join Date: Jul 2003 Location: Loudon, NH Posts: 876	I can't remember what it said on the paper in the window. All I can tell you is that I saw it at NHIS this past Sunday, should have paid more attention as to who owned it. __________________ -72 Chevy C10 Stepside -2002 Chevy Silverado 2500HD 4x4 -1984 Jeep CJ7 -1995 Polaris XCR600 Custom -2003 Honda 300ex

08-05-2003, 03:44 PM	#5
miket Registered User Join Date: Jan 2003 Location: Seattle WA Posts: 1,466	Lobo74, Check out my site...I have sound clips of 40's with 3" on a 71 with a ZZ502, Dynomax Turbos with 2-1/2" on my Suburban with the 496 and Dynomax race muffs on my Chevelle. Personally, if you aren't after the fainting women...50 or 70 series flows aer nice and it might be worth listening to Magnflows with a crossover pipe. __________________ FocuzTech Performance Evergreen Protective Coatings Gatorhyde...the best kept secret in spray in bed lining & protection

08-05-2003, 07:09 PM	#6
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,090	I have 50 series on the 350 on my 96...love them Nice rumble when you mneed it, but it doesn't drive you nuts on long interstate drives. I'm probably going to use same thing on the 70 when ever it gets back on the road and even if it is a 6. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

08-05-2003, 07:19 PM	#7
mtdave2 newly minted old timer Join Date: Dec 1999 Location: Hudson WI Posts: 3,521	magnaflows all the way. love these mufflers! __________________ ____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban

08-05-2003, 07:28 PM	#8
68CST327 Registered User Join Date: Aug 2002 Location: USA Posts: 443	Magnaflows! (post your videos Dave! )

08-05-2003, 08:20 PM	#9
rin68 Senior Member Join Date: Mar 2000 Location: East Peoria, IL Posts: 600	i'll be putting some Hooker AeroChambers on mine on Thursday, heard good things about their sound, and they outflow the Flowmasters. good or bad, i'll post my thoughts on em later __________________ 1968 C10 - 383, non-stop project 1969 Camaro - 327, bone stock family heirloom...soon to be LS/T56, Ridetech, all the goodies

08-05-2003, 08:25 PM	#10
yooper Registered User Join Date: Nov 2001 Location: yoop Posts: 54	I put 50 series delta flows on my 71 this past saturday. I've got a fairly mild 350 with headers. It sounds pretty good. Deep throaty sound. Personally I though it was going to be louder than it is and wish I would have went with something different. I'll sell ya the 50's if your interested so I can put some delta flow 40's on. Dont get me wrong it sounds nice but ijust like them louder.

08-05-2003, 09:41 PM	#11
mtdave2 newly minted old timer Join Date: Dec 1999 Location: Hudson WI Posts: 3,521	http://mtdave2.com/driveway.rm http://mtdave2.com/twe.rm i think thats the links __________________ ____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban

08-05-2003, 09:55 PM	#12
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	magnaflows here too ....

08-05-2003, 09:56 PM	#13
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	! I am running a pair of 40-series on my '69, with 2.5-inch inlet and outlet, no H-pipe (but need it) dumping right in front of the rear tires. Sounds good, especially echoing off of the construction barricades on I-30. I think I'm gonna take the muffler off of my '91 Celica and put on the pair of resonator tips I used to have on my '81 El Camino. No other muffler, just a Y-pipe and two resonators with their chrome tips. Couldn't sound any worse that the "Phartmaster 2000's" that I hear on the rest of the ricer's stuff. I had a '66 Pontiac resonator on my old '60 Triumph TR-3. No other muffler. It would rattle the store windows in downtown Little Rock....you could see 'em vibrate! __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

08-06-2003, 10:07 AM	#14
Slammed67 Progress = 0% Join Date: Nov 2001 Location: Kansas City, MO Posts: 2,108	Dynomax Super Turbos. __________________ Jason - '67 GMC swb \| '57 Bel-Air 4dr hardtop \| '56 210 4dr Wagon \| 2000 GMC Sierra

08-06-2003, 11:25 AM	#15
ChrisK10 1971 C20 Custom Camper Join Date: Mar 2003 Location: Ames/Shenandoah, IA Posts: 1,435	Dave what can I use to run an RM file? __________________ '71 Chevy C20 Custom Camper, 454, TH400 '97 GMC K1500 5.7L



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08-06-2003, 12:21 PM	#16
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	is there anything as loud or louder than 40 series flowmasters that are steet legal __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

08-06-2003, 12:31 PM	#17
miket Registered User Join Date: Jan 2003 Location: Seattle WA Posts: 1,466	Yes, anyone of the "Race" mufflers offered by Flowmaster, dynomax, etc...etc.... __________________ FocuzTech Performance Evergreen Protective Coatings Gatorhyde...the best kept secret in spray in bed lining & protection

08-06-2003, 12:49 PM	#18
pappadow Registered User Join Date: Jul 2003 Location: golden, co Posts: 35	IMO flowmasters suck. I like the sound of dynomax ultraflows better, it's deeper, and doesn't have that flowmaster Raspy sound.

08-06-2003, 12:55 PM	#19
mtdave2 newly minted old timer Join Date: Dec 1999 Location: Hudson WI Posts: 3,521	real one player is what plays it... im trying to figure out how to post it a differant way __________________ ____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban

08-06-2003, 02:44 PM	#20
NSANE68!!! SLICER AND DICIER Join Date: May 2001 Location: Quuen Creek Posts: 1,383	SCREW those Flowblockers MAGNAFLOW'S all the way and they out flow the flowmasters. __________________ 01 Tahoe 22's 2/4 drop and tv's 68 chevy money pit 51 chevy belair 95 Honda 900RR 05 GMC Siearra (company truck)

08-06-2003, 06:46 PM	#21
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Don't know who makes them for Summit, but their welded mufflers (chambered) sound good. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

08-06-2003, 07:03 PM	#22
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	Flowmaster Delta Flow 40's. I love them. They aren't tinny at all...just really deep, throaty and loud. They are pretty loud, and i turn heads everywhere with them. I would go with the 50 series Delta Flows. Regular flowmasters do have a kind of tinny sound too them, but the Delta Flows have more of a mellow, deeper sound. __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

08-06-2003, 09:21 PM	#23
smitty62 Registered User Join Date: May 2002 Location: North Carolina Posts: 1,234	Don't EVER put flowmasters on a vehicle you're proud of!!!!!!!!!!!! __________________ Stepsides look like real trucks! Smitty

08-06-2003, 09:50 PM	#24
miket Registered User Join Date: Jan 2003 Location: Seattle WA Posts: 1,466	I like the sound of different systems for different vehicles. I do like the Flowmasters, Dynomax Turbo's and the Magnaflows are okay too...it depends on what vehicle and the purpose it serves. In fact one of the best sounding systems I had was on my first truck...a 73 Jeep J4000 4X4....lifted 4" with 33X12.50X15's, Dana 44 front/Dana 60 5 lug rear/360 V-8--headers and 12" blown out glasspacks with turndowns. __________________ FocuzTech Performance Evergreen Protective Coatings Gatorhyde...the best kept secret in spray in bed lining & protection

08-06-2003, 11:01 PM	#25
Chevyguy111786 Registered User Join Date: Apr 2003 Location: Garland, Texas Posts: 1,127	I've got the Summit Welded mufflers. From what i understood they make them theirselves. They sound AWESOME at idle. but when you get into it it doesnt really have any bark to it. So to sum it up, (no pun intended) They sound good at idle but they do nothing for me any other time. They say they add up to 21 horsepower tho...i think i squeezed out 1 or 2...eh. they're only 15 bucks a piece plus shipping, so it's pretty good

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