flowmasters suck?
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Staging Lane
Joined: Jul 2005
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From: 909
flowmasters suck? ok, i know i dont have an ls1/ls2/ls6 engine...i have a 4.8 without any engine mods to it...i do have a single chamber delta force 3" thats dumped....i have been hearing more and more that flowmasters cause a loss in power along the curve...is this true? how does it happen? and, what good exhaust can i get thats around the price of a flowmaster and will sound similar dumped? thanks!
Some do, some don't. If you're running them on a high-flowing motor, they're gonna suck. If it's a stock rustang with the cat-back, it will probably help.
I ran dumped 2-chambers on my stang...They probably didn't help at all, but they came with the car so I kept them.
I ran dumped 2-chambers on my stang...They probably didn't help at all, but they came with the car so I kept them.
Joined: Jun 2004
Posts: 1,501
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From: Ft. Irwin, California (But Virginia is home)
Originally Posted by Full-Force
I think the flowmaster sucks expression mainly partains to the 80 series crossflow muffler for our cars.
The crossflow 80 series is restrictive, not the straight through designs. But..... I'm still getting a dyno-verified 375RWHP with a TR 224 cam, LT headers, K&N and the "blowmaster". So....suck is a relative term. What I may or may not be losing in HP I'm making up for in an exhaust sound similiar to true duals but with the ground clearance 
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even the single chambers and delta force race mufflers are restictive
i am running 1 3.5" delta force small case 2 chamber and loose 14 hp and 10 fltbs through the muffler as opposed to the cutouts
i am running 1 3.5" delta force small case 2 chamber and loose 14 hp and 10 fltbs through the muffler as opposed to the cutouts
Originally Posted by Tally TransAm
even the single chambers and delta force race mufflers are restictive
i am running 1 3.5" delta force small case 2 chamber and loose 14 hp and 10 fltbs through the muffler as opposed to the cutouts
i am running 1 3.5" delta force small case 2 chamber and loose 14 hp and 10 fltbs through the muffler as opposed to the cutouts
They don't suck, they blow 
Originally Posted by simple02
ok, i know i dont have an ls1/ls2/ls6 engine...i have a 4.8 without any engine mods to it...i do have a single chamber delta force 3" thats dumped....i have been hearing more and more that flowmasters cause a loss in power along the curve...is this true? how does it happen? and, what good exhaust can i get thats around the price of a flowmaster and will sound similar dumped? thanks!
I would say with a 4.8 and a 1 chamber if anything you are loosing low end torque from not ENOUGH back pressure, it has more than enough flow for the little engine!!
Try to stay on topic people!
Try to stay on topic people!
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From: Orange Park/ Jacksonville, FL
Quote:
Originally Posted by Tally TransAm
even the single chambers and delta force race mufflers are restictive
i am running 1 3.5" delta force small case 2 chamber and loose 14 hp and 10 fltbs through the muffler as opposed to the cutouts
exactly! the only thing better than the 1-chamber is a bullet muffler. Besides, a 1-chamber flows better than a 2-chamber no matter how small the case, because it does have that one less chamber.
I agree though, the 80 series has proven itself to be very restrictive.
Originally Posted by Tally TransAm
even the single chambers and delta force race mufflers are restictive
i am running 1 3.5" delta force small case 2 chamber and loose 14 hp and 10 fltbs through the muffler as opposed to the cutouts
Originally Posted by Redneck Z
How can you say that single chambers are restrictive? They are as straight through as a muffler can possible be. There is no restriction in them at all.
I agree though, the 80 series has proven itself to be very restrictive.
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From: Gainesville, Denton TX
the catback system for the fbodys looses power.
too many people get these confused with other basic muffler only setups.
useing a 1in, 2 out config setup for the fbody like a stock setup with their mufflers, chokes.
the 40 series, etc on trucks will gain some power, especially over the stock muffler.
I ran a 3" in/out on my 5.3 and could tell a difference.. sounds nice on the trucks too.
in a true dual setup, or a non-catback style setup, they are proven mufflers, used on many many different setups.
Personally, I'd go with a magnaflow muffler on the truck, or something else, just to be a little different.
A few years ago every jeep, civic, ford, dodge caravan, everything had a damn flowmaster....
1993camaro of idaho, have you yet to post something informative, or do you just reword someone else's posts and try to make yourself sound more like a dumbass each post?
too many people get these confused with other basic muffler only setups.
useing a 1in, 2 out config setup for the fbody like a stock setup with their mufflers, chokes.
the 40 series, etc on trucks will gain some power, especially over the stock muffler.
I ran a 3" in/out on my 5.3 and could tell a difference.. sounds nice on the trucks too.
in a true dual setup, or a non-catback style setup, they are proven mufflers, used on many many different setups.
Personally, I'd go with a magnaflow muffler on the truck, or something else, just to be a little different.
A few years ago every jeep, civic, ford, dodge caravan, everything had a damn flowmaster....
1993camaro of idaho, have you yet to post something informative, or do you just reword someone else's posts and try to make yourself sound more like a dumbass each post?
Originally Posted by Brandon
I ran a 3" in/out on my 5.3 and could tell a difference.. sounds nice on the trucks too.
in a true dual setup, or a non-catback style setup, they are proven mufflers, used on many many different setups.
in a true dual setup, or a non-catback style setup, they are proven mufflers, used on many many different setups.
Also had 3" 1-chambers on my '02 Z28. Best sounding setup I've had yet. I could feel a difference in it as well. The 80 series cross-flow mufflers suck. The one and two chambers are alot better. With my truck (stepside) 5.3,2-chamber Flowmaster & K&N drop-in filter, I could hang with most Mustangs and some LS1's up to about 60mph.
Originally Posted by 02Firehawk#614
I would say with a 4.8 and a 1 chamber if anything you are loosing low end torque from not ENOUGH back pressure, it has more than enough flow for the little engine!!
Try to stay on topic people!
Try to stay on topic people!
