Flowmaster 40 Series...

[8T6K5]

EDIT: Title should read 40 Series...

Im considering a 40 Series...not sure if it might be too loud.....have a Magnaflow now, unsure what model and could use a bit more growll...

You must be registered for see images

This thread isnt a Flowmaster vs. Brand XX discussion either, so if you run-have ran a Flowmaster on your Square, which one did you use....how was teh sound...

 

[crazy4offroad]

Heard a lot about drone at certain RPMs, just get the 10 and let er scream.

 

[fish on]

I had 40 series on my 1998 sierra and she had a nice tone but at highway speeds it was loud in the cab. I went with dynomat and it worked great. If you want that classic flowmaster sound they are it!

 

[Stroked]

Flowmaster 10 Series...

I had a 40 series on my '90 K1500(350) and it was too quiet. Had an ok tone to it but it was higher pitched. No deep rumble at all.


Sent from my iPhone 4s using Tapatalk

 

[8T6K5]

http://www.fle-online.com/Sounds.asp

 

[bucket]

It varies a lot. Tubing size, headers, cid, tubing length, cam, type of cat convertor... it all makes a difference. Usually, I think a 40 series does a nice job of sounding good and loud, without being obnoxious.

 

[MrMarty51]

I like "Straight Pipes".
Thats all

 

[89Suburban]

I had a 40 series on my '90 K1500(350) and it was too quiet. Had an ok tone to it but it was higher pitched. No deep rumble at all.


Sent from my iPhone 4s using Tapatalk

I had a 40 on my '89 K1500/350 behind a y pipe and cat dumping out 2 90 degree dual 2" outlets in front of the pass side wheel under the front of the bed. Nice and bearable tone at idle, but when you romped on it it would make the yuppie at the light in the next lane spill his cappacino he he....

 

[Old77]

I have 40 series on my square and love it!! I have a vid of the sound in my build thread but I'll repost here in a little bit

 

[Old77]

http://i910.photobucket.com/albums/ac305/07Burb/Truck/DSCN2998.mp4


Here's the vid. 40 series, dynomax headers, no cats, 350 crate motor

 

[83swb]

Have dual 2.5 44's. Definitely not as loud as they are claimed to be.

I have a 97 4.6 F150 (I know) that I'm running all four factory cats with a SI/DO 10 series, and it's louder than the square.

Loud pipes save lives

 

[MrMarty51]

I`m running the cat. on Mine,single exhaust,with three inch in,three inch out,a length of pipe then a torpedo glass pack with three inch out of that,out behind the hind tire.Sounds real nice too.
I have been thinking of removint the cat,running duals,no mufflers and 1-7/8ths inch pipe,straight out behind the bumper.
Them babys sound sweet,not too loud,until,well when tromping on the throttle them babys really talk and the smaller diameter piping gives um a real nice tone.

 

[Driver4r]

I`m running the cat. on Mine,single exhaust,with three inch in,three inch out,a length of pipe then a torpedo glass pack with three inch out of that,out behind the hind tire.Sounds real nice too.
I have been thinking of removint the cat,running duals,no mufflers and 1-7/8ths inch pipe,straight out behind the bumper.
Them babys sound sweet,not too loud,until,well when tromping on the throttle them babys really talk and the smaller diameter piping gives um a real nice tone.

Im Running 2" duals with Glasspacks(basically resonators) And it sounds pretty good when you get on it . And my 355 is also pretty mild, so that helps to.

 

[MrMarty51]

Im Running 2" duals with Glasspacks(basically resonators) And it sounds pretty good when you get on it . And my 355 is also pretty mild, so that helps to.

Thats a mighty sweet sound.
The 1-7/8ths pipes gives them a bit of a "Crisp" tone.does`nt damage performance,I do`nt think.

 

[Boone83K10]

I have Super 40s on the 83. It seems to have less drone than the 40 series on my pops 98 Silverado but mine are louder.

Here is a comparison video put out by Flowmaster.

http://www.youtube.com/watch?v=YlGqSd7QjWQ