Flowmasters on Stock GT Question

wilburgtwoot · February 14th, 2007, 10:01 PM

I have a 1999 Mustang GT and I put a set of flowmasters on a couple of months back. When my mustang is just sitting idle, they're not as loud as I was hoping they would be, but they sound fine whenever I give the car gas. Is there anything I can do to get my exhaust to sound louder and deeper when idle or at low RPMs? I have a auto transmission, so when I'm driving my car will change gears and make my exhaust quiet again most of the time. I only really hear the exhaust when I'm speeding up or reving, that's about it. Any comments or tips are welcome.

FaStStAnG5-0 · February 15th, 2007, 09:45 AM

get your cats gutted out or buy an offroad x-pipe!

wilburgtwoot · February 15th, 2007, 01:42 PM

Where can I get my cats removed? Is it something that can be done at home? Sorry I've never done this before, so I'm sort of learning as I go along. Thanks for the reply.

93fourbangerstanger · April 29th, 2007, 02:04 AM

catts are the two smaller boxes on you exaust for emissions in your state where do u live?

Draidin · May 13th, 2007, 08:52 PM

I have a 5.0 auto with all aftermarket exhaust. Unfortunately there is not a lot you can do. The exhaust tone will drop off in the higher gears. That’s just the way autos are.
Your best improvement would be an off road H-pipe for more sound. They go for around $130. But tone will still drop off in the higher gears.

chris1 · May 16th, 2007, 12:14 PM

I have the same problem only thing is i live in good ol California...so whats an alternative?

Draidin · May 16th, 2007, 02:43 PM

You could go with a catted Prochamber from MAC.

droppedbass87 · May 16th, 2007, 04:35 PM

+1

neckbonekat · May 17th, 2007, 02:34 AM

Don't you have to have all four cats in Cali? I'm pretty sure I read that in another post.

01GT · July 9th, 2007, 07:57 PM

i live in cali, and im pretty sure, by law that you cannot take away any visual emissions equipment. meaning if it came with 4 cats, legally it needs to have 4 cats.... but thats not saying that people actually enforce that law. imho as long as you have cats you're good to go.

btw, my cars registered in oklahoma...so o/r x for me.

HMUSN · July 9th, 2007, 08:01 PM

i lived in CA for six years...

my car passed smog and a visual on a Military base with only 2 cats on it.

just buy a catted H pipe and you will be fine

neckbonekat · July 10th, 2007, 12:55 AM

If you really want to add volume to your stang lose the Flows, get some lore aggresive cams and some LY headers. That will give you all the volume you want.

February 14th, 2007, 10:01 PM	#1
wilburgtwoot Newbie Join Date: Feb 2007 Posts: 17 iTrader: 0 reviews	Flowmasters on Stock GT Question I have a 1999 Mustang GT and I put a set of flowmasters on a couple of months back. When my mustang is just sitting idle, they're not as loud as I was hoping they would be, but they sound fine whenever I give the car gas. Is there anything I can do to get my exhaust to sound louder and deeper when idle or at low RPMs? I have a auto transmission, so when I'm driving my car will change gears and make my exhaust quiet again most of the time. I only really hear the exhaust when I'm speeding up or reving, that's about it. Any comments or tips are welcome.

February 15th, 2007, 09:45 AM	#2
FaStStAnG5-0 Hardcore Enthusiast Join Date: Jul 2006 Location: Mooresville, NC Posts: 1,221 iTrader: 0 reviews	get your cats gutted out or buy an offroad x-pipe! __________________ http://www.cardomain.com/ride/2461223 1994 GT: MSD 6AL, BBK O/R H-Pipe, Dynomax Race Bullet mufflers, 3:73 rear, Hurst Short Shifter, MAC cold air intake & much more coming soon!

April 29th, 2007, 02:04 AM	#4
93fourbangerstanger Regular Join Date: Mar 2007 Posts: 379 iTrader: 0 reviews	catts are the two smaller boxes on you exaust for emissions in your state where do u live? __________________ 93 fourbanger /intake,exhaust,erg delete,8 inch sub...for now fukin gas prices!

May 13th, 2007, 08:52 PM	#5
Draidin Regular Mustang GT 2002 & 1993 Join Date: May 2007 Location: Columbus Ohio Posts: 142 iTrader: 0 reviews	I have a 5.0 auto with all aftermarket exhaust. Unfortunately there is not a lot you can do. The exhaust tone will drop off in the higher gears. That’s just the way autos are. Your best improvement would be an off road H-pipe for more sound. They go for around $130. But tone will still drop off in the higher gears. __________________ 2002 Mustang GT + 1993 Mustang GT

May 16th, 2007, 02:43 PM	#7
Draidin Regular Mustang GT 2002 & 1993 Join Date: May 2007 Location: Columbus Ohio Posts: 142 iTrader: 0 reviews	You could go with a catted Prochamber from MAC. __________________ 2002 Mustang GT + 1993 Mustang GT

February 15th, 2007, 01:42 PM	#3
wilburgtwoot Newbie Join Date: Feb 2007 Posts: 17 iTrader: 0 reviews	Where can I get my cats removed? Is it something that can be done at home? Sorry I've never done this before, so I'm sort of learning as I go along. Thanks for the reply.

May 16th, 2007, 12:14 PM	#6
chris1 Banned 2003 Ford Mach Traveling at the speed of a photon Join Date: Feb 2007 Location: Los Angeles, California Posts: 851 iTrader: 0 reviews	I have the same problem only thing is i live in good ol California...so whats an alternative?

May 16th, 2007, 04:35 PM	#8
droppedbass87 Hardcore Enthusiast Join Date: Sep 2006 Location: diberville,mississippi Posts: 1,894 iTrader: 0 reviews	+1 __________________ fraziers transmission service..

May 17th, 2007, 02:34 AM	#9
neckbonekat I Post Entirely Way Too Much 2005 Cadillac STS V8 ???????????????? Join Date: Dec 2006 Location: Upstate NY Posts: 6,344 iTrader: 3 reviews	Don't you have to have all four cats in Cali? I'm pretty sure I read that in another post. __________________ ITEMS FOR SALE! 4.10 GEARS + BEARING KIT

July 9th, 2007, 07:57 PM	#10
01GT Regular Join Date: May 2007 Location: NAS Lemoore, CA Posts: 227 iTrader: 0 reviews	i live in cali, and im pretty sure, by law that you cannot take away any visual emissions equipment. meaning if it came with 4 cats, legally it needs to have 4 cats.... but thats not saying that people actually enforce that law. imho as long as you have cats you're good to go. btw, my cars registered in oklahoma...so o/r x for me. __________________ Don't buy from this guy: 1fstmach1

July 9th, 2007, 08:01 PM	#11
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	i lived in CA for six years... my car passed smog and a visual on a Military base with only 2 cats on it. just buy a catted H pipe and you will be fine __________________

July 10th, 2007, 12:55 AM	#12
neckbonekat I Post Entirely Way Too Much 2005 Cadillac STS V8 ???????????????? Join Date: Dec 2006 Location: Upstate NY Posts: 6,344 iTrader: 3 reviews	If you really want to add volume to your stang lose the Flows, get some lore aggresive cams and some LY headers. That will give you all the volume you want. __________________ ITEMS FOR SALE! 4.10 GEARS + BEARING KIT

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