MAC or Flowmaster

TechWood · 08-10-2003, 08:52 AM

I'm stumped between the flowmaster american thunder system or the mac. I originally wanted to go with the flowmasters because I'm a big fan of agressive exhaust notes and love the metallic muscle car sound that flowmaster provides. I've never seen or heard a stang with the macs so I can't compare the two. I was told the flowmasters are all sound and no go. That they're too open and don't provide enough back pressure for a good hp increase. Not sure how true this is or not but I've been recommended the macs by more than one person. I also like the fact that the macs come with an optional 3.5" chrome tails. How do the macs compare to the flowmaster or vice-versa as far as overall performance? What difference is there in sounds between the two? Additionally, I plan on installing mac full lengths and pro chamber h-pipe along with the cat back. Like I said, I'm a big fan of an aggressive exhaust bark and don't want my car sounding like an F-150 with 2" dynomax and likewise run like one. Any info, feedback, or suggestions are appreciated.

429mustang · 08-10-2003, 10:25 AM

Magnaflows are supposed to be good, I would like to try a set of the dynomax ultraflow race mufflers.

Agent_4573 · 08-10-2003, 12:01 PM

if your gonna get a mac h-pipe and headers, mine-as-well keep it all the same and get the mac muffs. Usually matched setts sound and perform better than anything else.

mpj76 · 08-11-2003, 08:21 AM

I have a MAC catback system with chrome tailpipes. Sounds great BUT...the tailpipes start rusting after about two weeks. My friends Flowmasters did the same. Go with a stainless system, or keep your stock stainless pipes. I live in central Florida (no snow, salt spray, or acid rain).

GhettoPop · 08-11-2003, 09:15 AM

i put on an x-pipe and a magnaflow SS cat back, excellent quality, sounds awesome, about 1/2 the price of borla for, in my opinion, the same quality and sound

Mountain Main · 08-12-2003, 08:35 AM

I have MAC Shorty's. MAC Off Road X-Pipe and MAC Mufflers with the tail pipe combo. The great thing about the MAC Mufflers and the MAC Tail pipes is that I am able to take the tail pipes off and polish them. MAC has a real throtty sound to them. I don't really like the sound of Flow Masters. They don't sound that violent. I love driving down the road and settings off car alarms.

Mountain Main

VeNuM · 08-12-2003, 08:39 AM

I love my Magnaflows. My car had Flowmasters on it when I first bought it, at first I thought I liked it, but now I hate them after I've heard many other combo's. I had MAC headers and H-pipe and I truely believe a monkey could have done a better job, their stuff is crap in my honest opinion. ~Brian

08-10-2003, 08:52 AM	#1
TechWood Registered Member Join Date: Aug 2003 Location: Newark, NJ Posts: 1	MAC or Flowmaster I'm stumped between the flowmaster american thunder system or the mac. I originally wanted to go with the flowmasters because I'm a big fan of agressive exhaust notes and love the metallic muscle car sound that flowmaster provides. I've never seen or heard a stang with the macs so I can't compare the two. I was told the flowmasters are all sound and no go. That they're too open and don't provide enough back pressure for a good hp increase. Not sure how true this is or not but I've been recommended the macs by more than one person. I also like the fact that the macs come with an optional 3.5" chrome tails. How do the macs compare to the flowmaster or vice-versa as far as overall performance? What difference is there in sounds between the two? Additionally, I plan on installing mac full lengths and pro chamber h-pipe along with the cat back. Like I said, I'm a big fan of an aggressive exhaust bark and don't want my car sounding like an F-150 with 2" dynomax and likewise run like one. Any info, feedback, or suggestions are appreciated.

08-10-2003, 10:25 AM	#2
429mustang Registered Member Join Date: May 2001 Location: westerville, OH USA Posts: 618	Magnaflows are supposed to be good, I would like to try a set of the dynomax ultraflow race mufflers. __________________ 1990 Notchback: BBK Ceramic Coated Full length headers, Dr. Gas 3"- 2 1/2" x-pipe, Flowmaster 40's/turndowns.

08-10-2003, 12:01 PM	#3
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	if your gonna get a mac h-pipe and headers, mine-as-well keep it all the same and get the mac muffs. Usually matched setts sound and perform better than anything else. __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

08-11-2003, 09:15 AM	#5
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	i put on an x-pipe and a magnaflow SS cat back, excellent quality, sounds awesome, about 1/2 the price of borla for, in my opinion, the same quality and sound __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

08-12-2003, 08:35 AM	#6
Mountain Main Registered Member Join Date: Feb 2003 Location: Minturn, CO 81645 Posts: 109	I like MAC's I have MAC Shorty's. MAC Off Road X-Pipe and MAC Mufflers with the tail pipe combo. The great thing about the MAC Mufflers and the MAC Tail pipes is that I am able to take the tail pipes off and polish them. MAC has a real throtty sound to them. I don't really like the sound of Flow Masters. They don't sound that violent. I love driving down the road and settings off car alarms. Mountain Main

08-11-2003, 08:21 AM	#4
mpj76 Registered Member Join Date: Sep 2002 Posts: 158	I have a MAC catback system with chrome tailpipes. Sounds great BUT...the tailpipes start rusting after about two weeks. My friends Flowmasters did the same. Go with a stainless system, or keep your stock stainless pipes. I live in central Florida (no snow, salt spray, or acid rain).

08-12-2003, 08:39 AM	#7
VeNuM Registered Member Join Date: Apr 2002 Location: Downers Grove, IL Posts: 464	I love my Magnaflows. My car had Flowmasters on it when I first bought it, at first I thought I liked it, but now I hate them after I've heard many other combo's. I had MAC headers and H-pipe and I truely believe a monkey could have done a better job, their stuff is crap in my honest opinion. ~Brian __________________ 1989 Black Mustang GT Hatchback, Underdrive Pulles, Electric Fan, Cold Air Intake, Headers, Offroad H-Pipe, Magnaflow catback, Steeda Tri-Ax, Fluidyne Aluminum Radiator, Timing at 14*, 3.73's Coming not so soon: 408w Ricer Hater's Club Member #59

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