New Exaust System

Tincan18 · 10-01-2003, 01:02 AM

Hello I have been lookin into a CAT back exaust system for my 1994 ford mustang gt. I was thinking of replacing the cats i have with 2 hi flow cats. Also along with that i was going to get 2 v-force hi flow mufflers. I have done a little research and it is going to cost around 5-6 hundred dollars. So my question is, roughly, how much horse power will i gain from doing this work and will it be worth my money? Thanks.

stang_racer20 · 10-01-2003, 04:38 PM

$500 - 600 for cats and mufflers, damn thats expensive. you might see 10 hp total. for that same price you could probably add 15 - 25 with other bolt ons. by the way, what are v-force mufflers, never heard of em? as far as the cats. you got 2 choices, offroad pipe or cats. if you want to pass emmisions, keep the cats but dont buy any "high flow" ones either. you could spend that same 200 - 300 dollars and get yourself a nice set of shorty headers or mass air or something. so in my opinion no its not worth it, but its your choice!

Dark_5.0 · 10-01-2003, 06:08 PM

V-force mufflers are loud as hell, I have one on my Honda and my Brother had one on his 300zx.

Not a good loud either.

b055 · 10-02-2003, 09:04 PM

mac longtubes, mac prochamber, and mac catback.. it will sound sweet!

SilverSN95 · 10-03-2003, 09:57 PM

If you really want to send yourself into a spin go to www.mustangexhaust.com and ask the same question. There are all kinds of cat-back systems out there and I believe most give you 5-10% power increase. I hear the flowmasters are not good for the performance increase. Bassani,Magnaflow and Borla are better.

Al, also 94 GT and soon to get magnapack mufflers

tireburner163 · 10-04-2003, 01:31 AM

Cat-back exhaust systems are worth jack for power. There's just not that much of a restriction. 5hp. So you pick the system you think sounds the best. It's not gonna make a performance difference.

You can pick up 10-15 hp with a H-pipe though.

Get a 2.5" H-pipe with hi-flo cats if you live in a emissons controled state or a off-road H-pipe with no cats if you don't.

From my understanding V-force mufflers are a flowmaster rip offs. I have them on my car because they came on the car and I can't afford new ones.

-Josh, aka the tireburner

10-01-2003, 01:02 AM	#1
Tincan18 Registered Member Join Date: Sep 2003 Posts: 16	New Exaust System Hello I have been lookin into a CAT back exaust system for my 1994 ford mustang gt. I was thinking of replacing the cats i have with 2 hi flow cats. Also along with that i was going to get 2 v-force hi flow mufflers. I have done a little research and it is going to cost around 5-6 hundred dollars. So my question is, roughly, how much horse power will i gain from doing this work and will it be worth my money? Thanks. __________________ Tincan18

10-01-2003, 04:38 PM	#2
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	$500 - 600 for cats and mufflers, damn thats expensive. you might see 10 hp total. for that same price you could probably add 15 - 25 with other bolt ons. by the way, what are v-force mufflers, never heard of em? as far as the cats. you got 2 choices, offroad pipe or cats. if you want to pass emmisions, keep the cats but dont buy any "high flow" ones either. you could spend that same 200 - 300 dollars and get yourself a nice set of shorty headers or mass air or something. so in my opinion no its not worth it, but its your choice! __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

10-01-2003, 06:08 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	V-force mufflers are loud as hell, I have one on my Honda and my Brother had one on his 300zx. Not a good loud either. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

10-02-2003, 09:04 PM	#4
b055 Registered Member Join Date: Mar 2003 Location: philadelphia ms Posts: 180	mac longtubes, mac prochamber, and mac catback.. it will sound sweet! __________________ i got mustangs. do u?

10-03-2003, 09:57 PM	#5
SilverSN95 Registered Member Join Date: May 2002 Location: Ontario Posts: 39	If you really want to send yourself into a spin go to www.mustangexhaust.com and ask the same question. There are all kinds of cat-back systems out there and I believe most give you 5-10% power increase. I hear the flowmasters are not good for the performance increase. Bassani,Magnaflow and Borla are better. Al, also 94 GT and soon to get magnapack mufflers __________________ Al, 94 Mustang GT 3.55 gears Magnapack mufflers with 2.5" tails STEEDA TRI-AX Shifter MAC pulleys

10-04-2003, 01:31 AM	#6
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Cat-back exhaust systems are worth jack for power. There's just not that much of a restriction. 5hp. So you pick the system you think sounds the best. It's not gonna make a performance difference. You can pick up 10-15 hp with a H-pipe though. Get a 2.5" H-pipe with hi-flo cats if you live in a emissons controled state or a off-road H-pipe with no cats if you don't. From my understanding V-force mufflers are a flowmaster rip offs. I have them on my car because they came on the car and I can't afford new ones. -Josh, aka the tireburner __________________ 1987 Buick T-type 1998 HD Electra Elide

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