Just installed Flowmaster 40-Single In, Dual Out...

BigDuVall · 01-20-2005, 11:24 AM

It's not as loud as a lot of people on this board says it is, but it still sounds awesome!

NCarolina910 · 01-20-2005, 12:46 PM

It will get better with time. The muffler will get broken in and open up and get lower/deeper and have more of a growl to it. :thumbup:

madman7703 · 01-20-2005, 06:38 PM

There is nothing to break in. Carbon buildup on the inside may change the tone slightly if at all. I myself ran a 40 series for almost a year and hated it from day one. In my opinion they are not all that they are cracked up to be. Last year I decided to be different and tried the Ravin Z55 series muffler and I love it. Great sound and performance. I have had many compliments with the Ravin, but never with the flowmaster. I may change again in the future, who knows. The one thing I do know is that I will never run another Flowmaster! I am not looking for an arguement nor am I trying to step on the toes of all the Flowmaster followers outthere. We all know what we like and for me it's the Ravin.

DropNDestroy · 01-21-2005, 12:23 AM

i like my flowmaster, but to each his own.

BTW, this is what my single in dual out sounds like

http://img.s10forum.com/album1837/aac.mpg

BigDuVall · 01-21-2005, 12:37 AM

I love the way it sounds, but just thought it would be louder. Maybe it just needs to mellow out.

Also, do you think a new cat would be a good idea? I have a '96. If so, what kind of cat? I'm also looking at getting new headers.

madman7703 · 01-21-2005, 05:31 AM

Yep, thats a Flowmaster alright. Tin can sound, not deep enough and way to much interior resonance. That is why I hated mine and made the switch. Like you said, "To each his own". Again, I am not flaming anyone who likes a flowmaster. It just isn't my cup of tea.

Dan Plante · 01-21-2005, 10:36 AM

Hey everyone has their own opinion. I love the tinny sound that flowmaster makes. But mine is loud as all hell. One you get headers and replace the y-pipe for a bigger one and put a high flow cat on there it will get nice and loud.

DropNDestroy · 01-21-2005, 02:07 PM

Quote: Originally Posted by madman7703

Yep, thats a Flowmaster alright. Tin can sound, not deep enough and way to much interior resonance. That is why I hated mine and made the switch. Like you said, "To each his own". Again, I am not flaming anyone who likes a flowmaster. It just isn't my cup of tea.

you have a soundclip of the ravin z55 on a 4.3L v6? I'd like to hear it

NCarolina910 · 01-21-2005, 04:32 PM

My Flowmaster 40 may not have "broken in" but it has definately changed (gotten louder) in the 10 months I've had it. I love my Flowmaster and I've gotten many more compliments on it than I did my old Dynomax.

dk_250 · 01-21-2005, 04:35 PM

Ya after a few months it definitly gets louder, just wait itll be a big diff. At least for my single/single it changed alot.

madman7703 · 01-21-2005, 05:01 PM

No, sorry I don't have a digital camcorder to upload a sound clip. But I can tell you that it sounds NOTHING like the sound clip of the blazer on their website. That sound clip is of a single inlet/single outlet Z77 series muffler. The Z77 is about 2 1/2 feet long and is their quietest performance muffler. Also just a side note. I am running the slp y-pipe and I have run the jba headers but removed them in favor of the stock manifolds for now. Due to having an ext. cab with only a 3.08 gear in the rear I lost way to much low end with the headers and y-pipe. If I ever get around to installing the 3.73 gears and zexel (which has been sitting around for almost 2 years now) I might try the headers again. If not it is no big deal cuz someone will buy them.

Dan Plante · 01-21-2005, 05:07 PM

Quote: Originally Posted by madman7703

Due to having an ext. cab with only a 3.08 gear in the rear.

You are wrong there. If you have a Ext. Cab auto you have 3.42's in the rearend. You can not get an auto with 3.08 gears. 3.08's only come in the 5-speeds.

madman7703 · 01-21-2005, 07:21 PM

So are telling me that I am wrong? Thats funny, the GU4 (which is the code for 3.08 gears) on the Service Parts Identification tag in my glove box says otherwise. You should always becareful when using the following words Always, Never, and Only. You can usually find exceptions to just about everything and I guess that my truck is one of those exceptions. It is an Ext. Cab with 3.08 gears in an open carrier.

bristol16 · 01-21-2005, 07:24 PM

damnit i had bought a single in dual out Z-33 that i wanted to put on my jimmy. i can't run dual outs without losing my spare tire though so i just took the flow 40 he had off the shelf so i could get something. i really wanted my Z-33 though

madman7703 · 01-21-2005, 07:29 PM

That Z33 is a VERY LOUD muffler, but so is the Z55 if run with turndowns. I tried turndowns on mine and could only take it for a couple of days before I went back to have pipes run. I had a constant headache while driving it with turndowns.

ZQ8 NOMA · 01-21-2005, 07:29 PM

Quote: Originally Posted by madman7703

So are telling me that I am wrong? Thats funny, the GU4 (which is the code for 3.08 gears) on the Service Parts Identification tag in my glove box says otherwise. You should always becareful when using the following words Always, Never, and Only. You can usually find exceptions to just about everything and I guess that my truck is one of those exceptions. It is an Ext. Cab with 3.08 gears in an open carrier.

So is mine!
I like the flowmaster exhaust sound clip, but I'd love to hear a Magnaflow, that's what I'm leaning more towards.

97sdime · 01-21-2005, 07:36 PM

Quote: Originally Posted by NCarolinaS10

My Flowmaster 40 may not have "broken in" but it has definately changed (gotten louder) in the 10 months I've had it. I love my Flowmaster and I've gotten many more compliments on it than I did my old Dynomax.

Thats because a Dynomax still sounds stock..

bristol16 · 01-21-2005, 07:36 PM

Quote: Originally Posted by madman7703

That Z33 is a VERY LOUD muffler, but so is the Z55 if run with turndowns. I tried turndowns on mine and could only take it for a couple of days before I went back to have pipes run. I had a constant headache while driving it with turndowns.

yeah i don't want turndowns. the reason i want dual outs is cause i like the look of them straight back

damn you now i want my Z-33 even more

madman7703 · 01-21-2005, 08:10 PM

If you decide to get it please keep me informed. I also have been thinking about switching from the 55 to the 33 series.

dropt98chevy · 01-21-2005, 09:08 PM

it will take a month or so to break in

97sdime · 01-21-2005, 09:29 PM

Quote: Originally Posted by dropt98chevy

it will take a month or so to break in

I noticed a change right after it was installed... I considered that a big enough improvement

RKs95BlackSS · 01-21-2005, 10:48 PM

either way its waay better than stock. got my single catback flow 40 for 160 installed.... definitely worth it.

dk_250 · 01-21-2005, 11:15 PM

Quote: Originally Posted by madman7703

So are telling me that I am wrong? Thats funny, the GU4 (which is the code for 3.08 gears) on the Service Parts Identification tag in my glove box says otherwise. You should always becareful when using the following words Always, Never, and Only. You can usually find exceptions to just about everything and I guess that my truck is one of those exceptions. It is an Ext. Cab with 3.08 gears in an open carrier.

3.08 in an auto? damn thats gotta suck.

madman7703 · 01-22-2005, 11:16 AM

Well it wouldn't have been my choice for gears thats for sure, but I bought from dealers stock. As a matter of fact it was the only v6-auto truck they had on the lot in July of 2000. I do have a Zexel and a new set of 3.73 gears that will get installed one of these days. I have had them now for almost 2 years and something always comes up everytime I try to get them installed. I can tell you that a 3.08 isn't the worst gear I ever ran though. Years ago I had a built 1974 Corvette 350 with nothing to put it in. I found a 1980 Malibu that the owner thought had a blown motor and sold it to me for $75.00. The car was a four door car, but for $75 bucks who cares. This was a sleeper in the making. Turns out the only thing wrong with the car was a burnt positive battery cable. Later after running the rearend numbers at the local dealership I found out that the car came from the factory with a 2.29 gear in an open carrier. Now that gear SUCKS. Even so with that gear-carrier combo combined with a stock tranny and no traction I was still able to pull off low 9 second 1/8 mile times.

jmwxtreme43 · 01-22-2005, 11:27 AM

Quote: Originally Posted by madman7703

Yep, thats a Flowmaster alright. Tin can sound, not deep enough and way to much interior resonance. That is why I hated mine and made the switch. Like you said, "To each his own". Again, I am not flaming anyone who likes a flowmaster. It just isn't my cup of tea.

I love the tin can sound, nothing better really, i hate muffled deep tones, sounds like it has no balls. But it sounds even better with no cats!! Listen here....

http://img.s10forum.com/JWX-SIGS/aao.wmv

its kinda old, from last summer but you get the idea, sounds 1000 times better in person too

jmwxtreme43 · 01-22-2005, 11:31 AM

BTW here is my brothers cammed 4.3 with no cats, stock manifolds, stock y-pipe and a spintech muffler

http://img.s10forum.com/JWX-SIGS/aaa.wmv

madman7703 · 01-22-2005, 01:31 PM

liked the spintech sound much better than the flow. Way to much popping in that one. What cam is he using?

01-20-2005, 11:24 AM	#1
BigDuVall Registered User Age: 30 Join Date: Feb 2004 Posts: 601 Location: North Augusta, SC User is: OffLine	Just installed Flowmaster 40-Single In, Dual Out... It's not as loud as a lot of people on this board says it is, but it still sounds awesome!
	[Reply w/Quote]

01-20-2005, 12:46 PM	#2
NCarolina910 no more S10 Age: 26 Join Date: Jul 2003 Posts: 17,422 Location: North Carolina User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... It will get better with time. The muffler will get broken in and open up and get lower/deeper and have more of a growl to it. :thumbup:
	[Reply w/Quote]

01-20-2005, 06:38 PM	#3
madman7703 Registered User Age: 46 Join Date: May 2002 Posts: 294 Location: Oak Grove, Ky User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... There is nothing to break in. Carbon buildup on the inside may change the tone slightly if at all. I myself ran a 40 series for almost a year and hated it from day one. In my opinion they are not all that they are cracked up to be. Last year I decided to be different and tried the Ravin Z55 series muffler and I love it. Great sound and performance. I have had many compliments with the Ravin, but never with the flowmaster. I may change again in the future, who knows. The one thing I do know is that I will never run another Flowmaster! I am not looking for an arguement nor am I trying to step on the toes of all the Flowmaster followers outthere. We all know what we like and for me it's the Ravin.
	[Reply w/Quote]

01-21-2005, 12:23 AM	#4
DropNDestroy Gots me a 4x4 too! Age: 29 Join Date: Oct 2004 Posts: 3,530 Location: Birmingham, AL User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... i like my flowmaster, but to each his own. BTW, this is what my single in dual out sounds like http://img.s10forum.com/album1837/aac.mpg
	[Reply w/Quote]

01-21-2005, 12:37 AM	#5
BigDuVall Registered User Age: 30 Join Date: Feb 2004 Posts: 601 Location: North Augusta, SC User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... I love the way it sounds, but just thought it would be louder. Maybe it just needs to mellow out. Also, do you think a new cat would be a good idea? I have a '96. If so, what kind of cat? I'm also looking at getting new headers.
	[Reply w/Quote]

01-21-2005, 05:31 AM	#6
madman7703 Registered User Age: 46 Join Date: May 2002 Posts: 294 Location: Oak Grove, Ky User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Yep, thats a Flowmaster alright. Tin can sound, not deep enough and way to much interior resonance. That is why I hated mine and made the switch. Like you said, "To each his own". Again, I am not flaming anyone who likes a flowmaster. It just isn't my cup of tea.
	[Reply w/Quote]

01-21-2005, 10:36 AM	#7
Dan Plante Registered User Age: 37 Join Date: Jul 2001 Posts: 3,850 Location: Franklin, MA User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Hey everyone has their own opinion. I love the tinny sound that flowmaster makes. But mine is loud as all hell. One you get headers and replace the y-pipe for a bigger one and put a high flow cat on there it will get nice and loud.
	[Reply w/Quote]

01-21-2005, 02:07 PM	#8
DropNDestroy Gots me a 4x4 too! Age: 29 Join Date: Oct 2004 Posts: 3,530 Location: Birmingham, AL User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Quote: Originally Posted by madman7703 Yep, thats a Flowmaster alright. Tin can sound, not deep enough and way to much interior resonance. That is why I hated mine and made the switch. Like you said, "To each his own". Again, I am not flaming anyone who likes a flowmaster. It just isn't my cup of tea. you have a soundclip of the ravin z55 on a 4.3L v6? I'd like to hear it
	[Reply w/Quote]

01-21-2005, 04:32 PM	#9
NCarolina910 no more S10 Age: 26 Join Date: Jul 2003 Posts: 17,422 Location: North Carolina User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... My Flowmaster 40 may not have "broken in" but it has definately changed (gotten louder) in the 10 months I've had it. I love my Flowmaster and I've gotten many more compliments on it than I did my old Dynomax.
	[Reply w/Quote]

01-21-2005, 04:35 PM	#10
dk_250 stock is the new fixed up Age: 31 Join Date: Aug 2003 Posts: 530 Location: User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Ya after a few months it definitly gets louder, just wait itll be a big diff. At least for my single/single it changed alot.
	[Reply w/Quote]

01-21-2005, 05:01 PM	#11
madman7703 Registered User Age: 46 Join Date: May 2002 Posts: 294 Location: Oak Grove, Ky User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... No, sorry I don't have a digital camcorder to upload a sound clip. But I can tell you that it sounds NOTHING like the sound clip of the blazer on their website. That sound clip is of a single inlet/single outlet Z77 series muffler. The Z77 is about 2 1/2 feet long and is their quietest performance muffler. Also just a side note. I am running the slp y-pipe and I have run the jba headers but removed them in favor of the stock manifolds for now. Due to having an ext. cab with only a 3.08 gear in the rear I lost way to much low end with the headers and y-pipe. If I ever get around to installing the 3.73 gears and zexel (which has been sitting around for almost 2 years now) I might try the headers again. If not it is no big deal cuz someone will buy them.
	[Reply w/Quote]

01-21-2005, 05:07 PM	#12
Dan Plante Registered User Age: 37 Join Date: Jul 2001 Posts: 3,850 Location: Franklin, MA User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Quote: Originally Posted by madman7703 Due to having an ext. cab with only a 3.08 gear in the rear. You are wrong there. If you have a Ext. Cab auto you have 3.42's in the rearend. You can not get an auto with 3.08 gears. 3.08's only come in the 5-speeds.
	[Reply w/Quote]

01-21-2005, 07:21 PM	#13
madman7703 Registered User Age: 46 Join Date: May 2002 Posts: 294 Location: Oak Grove, Ky User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... So are telling me that I am wrong? Thats funny, the GU4 (which is the code for 3.08 gears) on the Service Parts Identification tag in my glove box says otherwise. You should always becareful when using the following words Always, Never, and Only. You can usually find exceptions to just about everything and I guess that my truck is one of those exceptions. It is an Ext. Cab with 3.08 gears in an open carrier.
	[Reply w/Quote]

01-21-2005, 07:24 PM	#14
bristol16 Registered User Join Date: Mar 2003 Posts: 3,834 Location: Greensboro, NC User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... damnit i had bought a single in dual out Z-33 that i wanted to put on my jimmy. i can't run dual outs without losing my spare tire though so i just took the flow 40 he had off the shelf so i could get something. i really wanted my Z-33 though
	[Reply w/Quote]

01-21-2005, 07:29 PM	#15
madman7703 Registered User Age: 46 Join Date: May 2002 Posts: 294 Location: Oak Grove, Ky User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... That Z33 is a VERY LOUD muffler, but so is the Z55 if run with turndowns. I tried turndowns on mine and could only take it for a couple of days before I went back to have pipes run. I had a constant headache while driving it with turndowns.
	[Reply w/Quote]

Remove Advertisements Sponsored Links
S10forum.com Advertisement

01-21-2005, 07:29 PM	#16
ZQ8 NOMA Drivin' 2 Noma's Age: 34 Join Date: Aug 2002 Posts: 4,275 Location: Kitchener, Ontario User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Quote: Originally Posted by madman7703 So are telling me that I am wrong? Thats funny, the GU4 (which is the code for 3.08 gears) on the Service Parts Identification tag in my glove box says otherwise. You should always becareful when using the following words Always, Never, and Only. You can usually find exceptions to just about everything and I guess that my truck is one of those exceptions. It is an Ext. Cab with 3.08 gears in an open carrier. So is mine! I like the flowmaster exhaust sound clip, but I'd love to hear a Magnaflow, that's what I'm leaning more towards. Last edited by ZQ8 NOMA; 01-21-2005 at 07:31 PM.
	[Reply w/Quote]

01-21-2005, 07:36 PM	#17
97sdime Still 2 High Age: 27 Join Date: Sep 2002 Posts: 1,565 Location: Bakersfield, CA User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Quote: Originally Posted by NCarolinaS10 My Flowmaster 40 may not have "broken in" but it has definately changed (gotten louder) in the 10 months I've had it. I love my Flowmaster and I've gotten many more compliments on it than I did my old Dynomax. Thats because a Dynomax still sounds stock..
	[Reply w/Quote]

01-21-2005, 08:10 PM	#19
madman7703 Registered User Age: 46 Join Date: May 2002 Posts: 294 Location: Oak Grove, Ky User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... If you decide to get it please keep me informed. I also have been thinking about switching from the 55 to the 33 series.
	[Reply w/Quote]

01-21-2005, 09:08 PM	#20
dropt98chevy Registered User Age: 30 Join Date: Mar 2003 Posts: 8,612 Location: User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... it will take a month or so to break in
	[Reply w/Quote]

01-21-2005, 09:29 PM	#21
97sdime Still 2 High Age: 27 Join Date: Sep 2002 Posts: 1,565 Location: Bakersfield, CA User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Quote: Originally Posted by dropt98chevy it will take a month or so to break in I noticed a change right after it was installed... I considered that a big enough improvement
	[Reply w/Quote]

01-21-2005, 10:48 PM	#22
RKs95BlackSS Getting Layed Age: 27 Join Date: May 2003 Posts: 1,545 Location: Sandwich, IL User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... either way its waay better than stock. got my single catback flow 40 for 160 installed.... definitely worth it.
	[Reply w/Quote]

01-21-2005, 11:15 PM	#23
dk_250 stock is the new fixed up Age: 31 Join Date: Aug 2003 Posts: 530 Location: User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Quote: Originally Posted by madman7703 So are telling me that I am wrong? Thats funny, the GU4 (which is the code for 3.08 gears) on the Service Parts Identification tag in my glove box says otherwise. You should always becareful when using the following words Always, Never, and Only. You can usually find exceptions to just about everything and I guess that my truck is one of those exceptions. It is an Ext. Cab with 3.08 gears in an open carrier. 3.08 in an auto? damn thats gotta suck.
	[Reply w/Quote]

01-22-2005, 11:16 AM	#24
madman7703 Registered User Age: 46 Join Date: May 2002 Posts: 294 Location: Oak Grove, Ky User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Well it wouldn't have been my choice for gears thats for sure, but I bought from dealers stock. As a matter of fact it was the only v6-auto truck they had on the lot in July of 2000. I do have a Zexel and a new set of 3.73 gears that will get installed one of these days. I have had them now for almost 2 years and something always comes up everytime I try to get them installed. I can tell you that a 3.08 isn't the worst gear I ever ran though. Years ago I had a built 1974 Corvette 350 with nothing to put it in. I found a 1980 Malibu that the owner thought had a blown motor and sold it to me for $75.00. The car was a four door car, but for $75 bucks who cares. This was a sleeper in the making. Turns out the only thing wrong with the car was a burnt positive battery cable. Later after running the rearend numbers at the local dealership I found out that the car came from the factory with a 2.29 gear in an open carrier. Now that gear SUCKS. Even so with that gear-carrier combo combined with a stock tranny and no traction I was still able to pull off low 9 second 1/8 mile times.
	[Reply w/Quote]

01-22-2005, 11:27 AM	#25
jmwxtreme43 www.myspace.com/MINTSICK Age: 28 Join Date: Oct 2003 Posts: 4,532 Location: Kingston, NH User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... Quote: Originally Posted by madman7703 Yep, thats a Flowmaster alright. Tin can sound, not deep enough and way to much interior resonance. That is why I hated mine and made the switch. Like you said, "To each his own". Again, I am not flaming anyone who likes a flowmaster. It just isn't my cup of tea. I love the tin can sound, nothing better really, i hate muffled deep tones, sounds like it has no balls. But it sounds even better with no cats!! Listen here.... http://img.s10forum.com/JWX-SIGS/aao.wmv its kinda old, from last summer but you get the idea, sounds 1000 times better in person too
	[Reply w/Quote]

01-22-2005, 11:31 AM	#26
jmwxtreme43 www.myspace.com/MINTSICK Age: 28 Join Date: Oct 2003 Posts: 4,532 Location: Kingston, NH User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... BTW here is my brothers cammed 4.3 with no cats, stock manifolds, stock y-pipe and a spintech muffler http://img.s10forum.com/JWX-SIGS/aaa.wmv
	[Reply w/Quote]

01-22-2005, 01:31 PM	#27
madman7703 Registered User Age: 46 Join Date: May 2002 Posts: 294 Location: Oak Grove, Ky User is: OffLine	Re: Just installed Flowmaster 40-Single In, Dual Out... liked the spintech sound much better than the flow. Way to much popping in that one. What cam is he using?
	[Reply w/Quote]