Cat back systems

sgwinn · 02-12-2001, 12:27 PM

I'm trying to decide between Flomaster II or III chamber cat back systems, or Dynomax Ultra flow's. I've read Dynomax produces a little more HP. How about the sound? I'm looking for more sound than stock, but not real loud. Anybody compare these two brands for sound? thanks. Stan

DemonGT · 02-12-2001, 07:48 PM

i went with the Mac cat back...sounds awsome

------------------
1991 GT,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back

By the time summer comes ill have full Mac exhaust,new shifter knob and what ever else i can afford

LincoConti87 · 02-12-2001, 08:11 PM

I'm kinda thinking the same thing. Not quite a mustang yet but my lincoln could use a dual exhaust. Alot of people have 2 chambers for sale. On the flowmaster website they talk about their products and they have a very basic bargraph that basically states they make noticeable noise inside the car whereas the 3 chambers don't make too much. I really wanna get some 3 chambers but I can't afford anything new so I may have to go with the 2's

------------------
Rob meister
89 Mercedes 190E 2.6
87 Lincoln Continental 5.0
Ex 86 Mercury Cougar
with anemic 3.8

Unit 5302 · 02-12-2001, 10:44 PM

I have Dynomax Super Turbo's. The Ultraflows are louder I believe. Right now, I'd choose the Flomaster Delta flows. They move the resonance up to the 3000rpm area, instead of the 2000 area. Much better!

chris91LX · 02-13-2001, 03:11 AM

I have the Dynomax Super Turbo cat back and while I like it, I think I might have liked the Flowmaster sound better. The Mac system has the nice chrome tips, and my dynomax has the Stainless tips, not sure about the flowmaster, but I'm sure it's at least stainless. If you got the bucks, I've heard nothing but happy responses from people who have the Borla system, real mellow. If you don't want too loud the 3 chambers are the way to go. My pony sounds mean with the full exhaust, headers, o/r x pipe and cat back, but not obnoxious.

------------------
91 LX 5.0
Z t-5, 3:73 gear, Vortech 73mm Mass Air, Accufab 65mm TB, BBK underdrives, Crane HI-6S Ignition, BBK unequal length headers, Bassani x pipe, 2.5" Dynomax Super Turbo cat back, Kenny Brown Super Subs, Factory Five Control Arms, Mac cold air kit and more to come!

98yellow stang · 02-13-2001, 10:24 AM

What ever you do never consider a magnaflow. I have one on my car and I am trying to get warrenty service, because there is almost nothing left of the mufflers and the tailpipes literally fell off. The system just plain does not fit. The only thing it has going for it is that it sounds good. Or I would have myself a MAC or Flowmaster

------------------
My 98 yellow stang

Mods:
Magnaflow cat-back

2FastLX · 02-13-2001, 11:20 AM

I love the sound of my MAC and have heard Flows. I think the MAC sounds better IMO.

Here's some MAC clips...
sample1
sample2
sample3

Green92LX · 02-13-2001, 12:11 PM

GET THE MAC....YOU'LL FALL IN LOVE WITH YOUR CAR ALL OVER AGAIN!!!!!!! The only reason I have the flowturds on my coupe still is because in doing the car now, and I had the flow$hits hangin around....yuck

------------------
1992 5.0 LX, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,BBK equal length shorties,offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, 93 Cobra Spoiler

Daily driver: 89 Coupe with 205K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps, cut and welded stock shifter...and it runs like a champ.

Green92LX · 02-13-2001, 01:23 PM

Hey 2Fast, those clips sound sweet. I couldn't turn em up too loud though cause I'm at work

------------------
1992 5.0 LX, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,BBK equal length shorties,offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, 93 Cobra Spoiler

Daily driver: 89 Coupe with 205K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps, cut and welded stock shifter...and it runs like a champ.

sgwinn · 02-16-2001, 12:24 PM

Quote:

Originally posted by 2FastLX:
I love the sound of my MAC and have heard Flows. I think the MAC sounds better IMO.

Here's some MAC clips...
sample1
sample2
sample3

Thanks for the advice. What MAC system did you get exactly? Do they have comparable choices to Flows and Dynomax? Out of three choices, I'd like the medium range sound.
Stan

DZEE'S LX · 02-16-2001, 04:43 PM

I have Dynomax Race Magnums (2 1/2) necked down to my stock 2 1/4 pipes. I picked them because of the supposedly better flow and because I wanted the straight through design.
I did notice a slight bump in power compared to my blown out stock muffs.

The tone the RM's is really nice. They are not very loud though, most likely because of the stock 4-cat setup. They sound really sweet from about 2300 & up. I have minimal 2K highway drone.

I do like load pipes though, gotta love that V-8 sound in our world of rice.

I've been thinking about gutting the two rear cats just to see what happens.
Anybody done this? Results?
Someday I'll have the $$ for a better system but I just want a little more db for now.

------------------
Spec Service (UHP), Paint, 16x7.5 ALBA's w/BFG G-Force KDW's, TC 3.55's w/disks, K Bell Ramair, March pulleys, Race Magnums, D/S loop, MM 4point rollbar, FMS C springs & strut tower brace, Tokico Illuminas, KB welded subs.

BowTie Eater 5 Liter · 02-16-2001, 08:56 PM

I Like the dynomax ultra flo's If ya want a nice sound clip, here it goes. www.dynomax.com/audio/track01.wav

------------------
1988 Mustang GT, T-5
No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe (Sounds Mean), K&N Air Filter (Stock Air Box, Removed air silendcer), 198.9 rwhp @4200 (235 Motor!!), 285 lbs-ft @2900 (336 Motor!!!).

sgwinn · 02-20-2001, 12:30 PM

Man the sound clip for the Dynomax Ultra Flow is great. think I'm sold. next question; as you know, the stock muffler is all one piece, including tail pipes. Could I just get the Ultra Flow mufflers and have Midas "cut" out the old muffler only, and weld the mufflers into the existing tail pipe which is still perfect? (saves a buck)
Stan

2FastLX · 02-20-2001, 01:25 PM

I'm running MAC long tubes, MAC Pro Chamber crossover, and the MAC cat back. It all bolts together great and as you heard it sounds wicked.

DemonGT · 02-21-2001, 04:07 PM

iv never been a big fan of dynomax ...freind of mine has a 88 gt with a 347 and dynomax mufflers...i think it sounds like crap

------------------
1991 GT,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back

Future Mods:3.73's,Pro 5.0,Shifter knob,FMS 9mm wires

02-12-2001, 12:27 PM	#1
sgwinn Registered Member Join Date: Feb 2001 Posts: 84	Cat back systems I'm trying to decide between Flomaster II or III chamber cat back systems, or Dynomax Ultra flow's. I've read Dynomax produces a little more HP. How about the sound? I'm looking for more sound than stock, but not real loud. Anybody compare these two brands for sound? thanks. Stan

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02-12-2001, 07:48 PM	#2
DemonGT Registered Member Join Date: Aug 2000 Location: Wisconsin Posts: 879	i went with the Mac cat back...sounds awsome ------------------ 1991 GT,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back By the time summer comes ill have full Mac exhaust,new shifter knob and what ever else i can afford

02-12-2001, 08:11 PM	#3
LincoConti87 Registered Member Join Date: Dec 2000 Location: Tallahassee,Florida,USA Posts: 188	I'm kinda thinking the same thing. Not quite a mustang yet but my lincoln could use a dual exhaust. Alot of people have 2 chambers for sale. On the flowmaster website they talk about their products and they have a very basic bargraph that basically states they make noticeable noise inside the car whereas the 3 chambers don't make too much. I really wanna get some 3 chambers but I can't afford anything new so I may have to go with the 2's ------------------ Rob meister 89 Mercedes 190E 2.6 87 Lincoln Continental 5.0 Ex 86 Mercury Cougar with anemic 3.8

02-12-2001, 10:44 PM	#4
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	I have Dynomax Super Turbo's. The Ultraflows are louder I believe. Right now, I'd choose the Flomaster Delta flows. They move the resonance up to the 3000rpm area, instead of the 2000 area. Much better!

02-13-2001, 03:11 AM	#5
chris91LX Registered Member Join Date: Oct 1998 Location: Suburban Chicago, Hanover Park Posts: 695	I have the Dynomax Super Turbo cat back and while I like it, I think I might have liked the Flowmaster sound better. The Mac system has the nice chrome tips, and my dynomax has the Stainless tips, not sure about the flowmaster, but I'm sure it's at least stainless. If you got the bucks, I've heard nothing but happy responses from people who have the Borla system, real mellow. If you don't want too loud the 3 chambers are the way to go. My pony sounds mean with the full exhaust, headers, o/r x pipe and cat back, but not obnoxious. ------------------ 91 LX 5.0 Z t-5, 3:73 gear, Vortech 73mm Mass Air, Accufab 65mm TB, BBK underdrives, Crane HI-6S Ignition, BBK unequal length headers, Bassani x pipe, 2.5" Dynomax Super Turbo cat back, Kenny Brown Super Subs, Factory Five Control Arms, Mac cold air kit and more to come!

02-13-2001, 10:24 AM	#6
98yellow stang Registered Member Join Date: Dec 2000 Location: Erie PA USA Posts: 38	What ever you do never consider a magnaflow. I have one on my car and I am trying to get warrenty service, because there is almost nothing left of the mufflers and the tailpipes literally fell off. The system just plain does not fit. The only thing it has going for it is that it sounds good. Or I would have myself a MAC or Flowmaster ------------------ My 98 yellow stang Mods: Magnaflow cat-back

02-13-2001, 11:20 AM	#7
2FastLX The Photoshop Guru Join Date: Feb 2001 Location: Mecca, Indiana Posts: 1,419	I love the sound of my MAC and have heard Flows. I think the MAC sounds better IMO. Here's some MAC clips... sample1 sample2 sample3

02-13-2001, 12:11 PM	#8
Green92LX Registered Member Join Date: Jun 1999 Location: North Haven,CT Posts: 336	GET THE MAC....YOU'LL FALL IN LOVE WITH YOUR CAR ALL OVER AGAIN!!!!!!! The only reason I have the flowturds on my coupe still is because in doing the car now, and I had the flow$hits hangin around....yuck ------------------ 1992 5.0 LX, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,BBK equal length shorties,offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, 93 Cobra Spoiler Daily driver: 89 Coupe with 205K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps, cut and welded stock shifter...and it runs like a champ.

02-13-2001, 01:23 PM	#9
Green92LX Registered Member Join Date: Jun 1999 Location: North Haven,CT Posts: 336	Hey 2Fast, those clips sound sweet. I couldn't turn em up too loud though cause I'm at work ------------------ 1992 5.0 LX, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,BBK equal length shorties,offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, 93 Cobra Spoiler Daily driver: 89 Coupe with 205K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps, cut and welded stock shifter...and it runs like a champ.

02-16-2001, 04:43 PM	#11
DZEE'S LX Registered Member Join Date: Jan 2001 Location: Salt Lake City Posts: 117	I have Dynomax Race Magnums (2 1/2) necked down to my stock 2 1/4 pipes. I picked them because of the supposedly better flow and because I wanted the straight through design. I did notice a slight bump in power compared to my blown out stock muffs. The tone the RM's is really nice. They are not very loud though, most likely because of the stock 4-cat setup. They sound really sweet from about 2300 & up. I have minimal 2K highway drone. I do like load pipes though, gotta love that V-8 sound in our world of rice. I've been thinking about gutting the two rear cats just to see what happens. Anybody done this? Results? Someday I'll have the $$ for a better system but I just want a little more db for now. ------------------ Spec Service (UHP), Paint, 16x7.5 ALBA's w/BFG G-Force KDW's, TC 3.55's w/disks, K Bell Ramair, March pulleys, Race Magnums, D/S loop, MM 4point rollbar, FMS C springs & strut tower brace, Tokico Illuminas, KB welded subs.

02-16-2001, 08:56 PM	#12
BowTie Eater 5 Liter Registered Member Join Date: Nov 2000 Location: Maple Ridge B.C. Canada, The Best Place In The World Posts: 871	I Like the dynomax ultra flo's If ya want a nice sound clip, here it goes. www.dynomax.com/audio/track01.wav ------------------ 1988 Mustang GT, T-5 No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe (Sounds Mean), K&N Air Filter (Stock Air Box, Removed air silendcer), 198.9 rwhp @4200 (235 Motor!!), 285 lbs-ft @2900 (336 Motor!!!).

02-20-2001, 12:30 PM	#13
sgwinn Registered Member Join Date: Feb 2001 Posts: 84	Man the sound clip for the Dynomax Ultra Flow is great. think I'm sold. next question; as you know, the stock muffler is all one piece, including tail pipes. Could I just get the Ultra Flow mufflers and have Midas "cut" out the old muffler only, and weld the mufflers into the existing tail pipe which is still perfect? (saves a buck) Stan

02-20-2001, 01:25 PM	#14
2FastLX The Photoshop Guru Join Date: Feb 2001 Location: Mecca, Indiana Posts: 1,419	I'm running MAC long tubes, MAC Pro Chamber crossover, and the MAC cat back. It all bolts together great and as you heard it sounds wicked.

02-21-2001, 04:07 PM	#15
DemonGT Registered Member Join Date: Aug 2000 Location: Wisconsin Posts: 879	iv never been a big fan of dynomax ...freind of mine has a 88 gt with a 347 and dynomax mufflers...i think it sounds like crap ------------------ 1991 GT,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back Future Mods:3.73's,Pro 5.0,Shifter knob,FMS 9mm wires