Opinions needed: Muffler pipes, turndowns... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1974StepSide · 06-13-2003, 02:19 PM

Currently my dual exhaust setup has Hooker headers going to a Flowmaster muffler single inlet/outlet to standard pipes (2 1/2") to a side exited 3" chrome tip. (On both sides... So I have two mufflers etc... )

What would be the benefit, if any, to cutting the pipes off and just have the mufflers as the "end of the line"?

Will the truck sound louder with the lack of pipes coming from the mufflers?

Will performance be enhanced or is this not a good idea?

Thanks

Big Moe

BigRed · 06-13-2003, 02:21 PM

Are you talking about dumping the exhaust straight out of the mufflers? If so, you would need a couple turn downs. It does make it louder in the cab. However, performance would not be any different. I have it that way I like it!

1974StepSide · 06-13-2003, 02:24 PM

Quote:

Originally posted by BigRed
Are you talking about dumping the exhaust straight out of the mufflers?

Yes that's what I mean. Thanks for responding so fast!

Big Moe

gldevall · 06-13-2003, 02:28 PM

Turn downs sound excellent!!

lukecp · 06-13-2003, 06:10 PM

I have 40 series Delta Flowmasters on my truck, and they just end above my rear axle. No turndowns or anything, just the 2" of pipe that come out of the muffler. It sounds GREAT. It is very loud at idle, at part throttle, and of course at full throttle too. It is pretty deep and throaty, unlike Flows with tailpipes (sounds hollow and tinny), or flows with turndowns (sounds kinda airy...almost like a flutter).

Russell · 06-13-2003, 06:14 PM

I am planning on installing just a regular turbo muffler that ends ends at the pipe...

1974StepSide · 06-13-2003, 08:22 PM

Quote:

Originally posted by yellow72custom
No turndowns or anything, just the 2" of pipe that come out of the muffler. It sounds GREAT.

This is what I had in mind too, thanks for the replies. I think I will go this route within the near future....

Big Moe

TIMSPEED · 06-13-2003, 09:41 PM

Hey Moe, here's mine with Hedman's then Dual 2½", into Hooker Maximum Flow Mufflers. It sounds AWESOME!

1974StepSide · 01-28-2004, 06:40 PM

I apologize for resurrecting my own thread... I finally got around to getting my tailpipes cut off. And it only took 7 months!

As soon as I turned on my truck after removing the back half of my exhaust I noticed the difference in tone.

The truck sounds considerably DEEPER at idle-1500 RPM. After 1500 RPM there isn't much difference in tone, but I'm very happy with the results.

TIMSPEED · 01-28-2004, 07:35 PM

copycat

C&C Chevy · 01-28-2004, 07:44 PM

I'd be worried about rain water and road grime getting in there and rusting the muffler out earlier than usual.

Prerunner1982 · 01-28-2004, 08:17 PM

as much off roading as i do, mine will probably rust pretty quick...guess i will learn. i have turn downs.. i like the way it looks in the morning when you can see the exhaust as it comes down and hits the ground.. yeah i am weird. if your truck is not tuned right you will know.. your rear axle/shocks...etc.. will be covered in black crap. but i guess if your truck is lowered you wont really see that anyways... so it wont matter.

90nosHO · 01-28-2004, 08:50 PM

i have it dumped straight out of the stock mufflers and it sounds pretty good, nce i get the new exhuast im going to keep the dump, it sounds mean.

i had dumps on my stang along with an o/r h-pipe with 2chamber flows and it sounded amazing.

i swear by dumps

1985K10 · 01-28-2004, 09:21 PM

I have duals that exit behind the rear wheels, not loud in the cab, but sounds pretty nice outside.
Once I replaced the mufflers with plain pipe.......My truck was loud as heck and it sounded a little like a Harley...I loved it, but the teachers at my girlfriends school didnt seem to appreciate it!

1974StepSide · 01-29-2004, 04:56 AM

Not too concerned with rust... However after driving around town today, I'm paranoid about driving next to cops. It might be too loud = asking for a fix it ticket...

TIMSPEED · 01-29-2004, 05:56 AM

Quote:

Originally posted by 1974StepSide
However after driving around town today, I'm paranoid about driving next to cops. It might be too loud = asking for a fix it ticket...

Hmm..must be the Flow's doing that, because my Hooker Maximum Flow's (Straight through race muffler design) are DAMN quiet at idle/cruise...once I go WOT though, all hell breaks loose!

69ChevySteP · 01-29-2004, 10:48 AM

I have 3 inch with flowmaster 40 series coming out below the doors. i get a lot of compliments around and i havent seen anyone with the same. btw its not illegal. some people starting saying it was last time i posted pics but its not.

Prerunner1982 · 01-29-2004, 12:17 PM

in some states its illegal to modify the exhaust from its original setup. (ex. single pipe exiting beind the wheels.) kinda like what mike has to deal with if i am not mistaken (wouldnt be the first time that i was), also if the truck orginally came with cats. (*cough*likemine*cough*) but since its on his 74 (i am guessing) then thats not an issue.

When i first got my dual 3" pipes with flows dumped... i was paranoid about the cops too.. but i have never had a problem.

06-13-2003, 02:19 PM	#1
1974StepSide Play it Loud... Join Date: Aug 2002 Location: East San Jose, CA Posts: 465	Opinions needed: Muffler pipes, turndowns... Currently my dual exhaust setup has Hooker headers going to a Flowmaster muffler single inlet/outlet to standard pipes (2 1/2") to a side exited 3" chrome tip. (On both sides... So I have two mufflers etc... ) What would be the benefit, if any, to cutting the pipes off and just have the mufflers as the "end of the line"? Will the truck sound louder with the lack of pipes coming from the mufflers? Will performance be enhanced or is this not a good idea? Thanks Big Moe

06-13-2003, 02:21 PM	#2
BigRed Registered User Join Date: Jun 2002 Location: DFW, TX Posts: 1,680	Are you talking about dumping the exhaust straight out of the mufflers? If so, you would need a couple turn downs. It does make it louder in the cab. However, performance would not be any different. I have it that way I like it! __________________ Scott Shelbourne

06-13-2003, 02:28 PM	#4
gldevall Registered User Join Date: Mar 2003 Location: Walker, LA Posts: 2,925	Turn downs sound excellent!! __________________ Gary -1986 SWB: lowered 4/6, SOLD!!! -Best 1/4 mile: 14.51 @ 91.01 MPH -2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!! -2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels

06-13-2003, 06:10 PM	#5
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	I have 40 series Delta Flowmasters on my truck, and they just end above my rear axle. No turndowns or anything, just the 2" of pipe that come out of the muffler. It sounds GREAT. It is very loud at idle, at part throttle, and of course at full throttle too. It is pretty deep and throaty, unlike Flows with tailpipes (sounds hollow and tinny), or flows with turndowns (sounds kinda airy...almost like a flutter). __________________ '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

06-13-2003, 06:14 PM	#6
Russell Professional Grade Join Date: May 2003 Location: Fort McMurray, Alberta Posts: 7,915	I am planning on installing just a regular turbo muffler that ends ends at the pipe... __________________ 1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)

06-13-2003, 09:41 PM	#8
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	Hey Moe, here's mine with Hedman's then Dual 2½", into Hooker Maximum Flow Mufflers. It sounds AWESOME! Attached Images __________________ I have a few cars... See Them Here

01-28-2004, 06:40 PM	#9
1974StepSide Play it Loud... Join Date: Aug 2002 Location: East San Jose, CA Posts: 465	I apologize for resurrecting my own thread... I finally got around to getting my tailpipes cut off. And it only took 7 months! As soon as I turned on my truck after removing the back half of my exhaust I noticed the difference in tone. The truck sounds considerably DEEPER at idle-1500 RPM. After 1500 RPM there isn't much difference in tone, but I'm very happy with the results. Attached Images __________________ Big Moe =-=-=-= 1974 Cheyenne Super Stepside, 350/400, Hooker Headers, Flowmaster Mufflers... Needs new doors, fenders, hood, and paint. 1952 Chevy Pickup waiting to be brought back home!

01-28-2004, 07:35 PM	#10
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	copycat __________________ I have a few cars... See Them Here

01-28-2004, 07:44 PM	#11
C&C Chevy Registered User Join Date: Feb 2003 Location: Midwest City, OK Posts: 1,001	I'd be worried about rain water and road grime getting in there and rusting the muffler out earlier than usual. __________________ Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007

01-28-2004, 08:17 PM	#12
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	as much off roading as i do, mine will probably rust pretty quick...guess i will learn. i have turn downs.. i like the way it looks in the morning when you can see the exhaust as it comes down and hits the ground.. yeah i am weird. if your truck is not tuned right you will know.. your rear axle/shocks...etc.. will be covered in black crap. but i guess if your truck is lowered you wont really see that anyways... so it wont matter. __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call

01-28-2004, 08:50 PM	#13
90nosHO Registered User Join Date: Dec 2003 Location: san rafael ca Posts: 10	i have it dumped straight out of the stock mufflers and it sounds pretty good, nce i get the new exhuast im going to keep the dump, it sounds mean. i had dumps on my stang along with an o/r h-pipe with 2chamber flows and it sounded amazing. i swear by dumps __________________ 76 sierra classic

01-28-2004, 09:21 PM	#14
1985K10 Registered User Join Date: Oct 2003 Location: CT Posts: 315	I have duals that exit behind the rear wheels, not loud in the cab, but sounds pretty nice outside. Once I replaced the mufflers with plain pipe.......My truck was loud as heck and it sounded a little like a Harley...I loved it, but the teachers at my girlfriends school didnt seem to appreciate it! __________________ Anthony 07 Tahoe LT 70 Chevelle 450HP 383-TH400 77 GMC Royal Sierra~Resto in progress~

01-29-2004, 04:56 AM	#15
1974StepSide Play it Loud... Join Date: Aug 2002 Location: East San Jose, CA Posts: 465	Not too concerned with rust... However after driving around town today, I'm paranoid about driving next to cops. It might be too loud = asking for a fix it ticket... __________________ Big Moe =-=-=-= 1974 Cheyenne Super Stepside, 350/400, Hooker Headers, Flowmaster Mufflers... Needs new doors, fenders, hood, and paint. 1952 Chevy Pickup waiting to be brought back home!

01-29-2004, 10:48 AM	#17
69ChevySteP Registered User Join Date: Feb 2003 Location: arizona Posts: 61	exhaust I have 3 inch with flowmaster 40 series coming out below the doors. i get a lot of compliments around and i havent seen anyone with the same. btw its not illegal. some people starting saying it was last time i posted pics but its not. Attached Images

01-29-2004, 12:17 PM	#18
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	in some states its illegal to modify the exhaust from its original setup. (ex. single pipe exiting beind the wheels.) kinda like what mike has to deal with if i am not mistaken (wouldnt be the first time that i was), also if the truck orginally came with cats. (coughlikeminecough) but since its on his 74 (i am guessing) then thats not an issue. When i first got my dual 3" pipes with flows dumped... i was paranoid about the cops too.. but i have never had a problem.



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