Exhaust Review by mach1review - Page 3 - 2003-04 Mach 1 Registry Owners Club

Orange whip 04 · 07-19-2004, 02:38 AM

A cat back system generaly is everything from the catalyst toward the rear of the car. Which include mufflers, tailpipes, and tips. Some systems have the mufflers welded onto the rest of the tail pipes making it a two piece system. SLP makes their system in 3 pieces which makes installation a piece of cake. Some systems have mid inlet pipes, mufflers, talipipes, and tips. Depends on what system you want to use. This gerneraly is how a cat back system is defined.

DanK · 07-19-2004, 12:57 PM

Quote:

Originally posted by Jhmaem
DanK, thanks for the prompt reply. What is exactly is a cat-back exhaust? As I read the Mach 1 review of the three exhaust types tested, they looked like much more than a muffler. Which system do you like for power w/o too much noise?

Orange Whip answered part of your question. If you look under your car you will see where the "cat-back" bolts to the stock H-pipe. As far as what exhaust I like....as far as power...we're only talking a couple of hp difference between exhaust brands. My suggestion is to pick by sound, fitment, durability, and weight. I went with the Borla Stinger cat-back from Performance Peddlers back in March. They had the absolute best price around as many others here will attest to...$405 shipped to your door if you tell them you are with the Mach 1 Registry. I had a lift I rented and removed stock exhaust and put on Stinger cat-back in an hour and twenty minutes. Everything fit perfectly and the system was really light. The tips are already in place so you don't have to worry about putting them on unlike some brands. Just alighn the tips in the center of the bumper exhaust cutouts and tighten all clamps. That is the hardest part of it all right there.

The exhuast sounds like the car is running under water when brand new but don't be alarmed. The exhaust will sound better (sweet) after a few hundred miles of break-in time. The sound is awesome but not overpowering with the stock H-pipe. Good luck with whatever you choose. :THUMBSUP:

BoulderMach · 07-19-2004, 09:04 PM

The testers remarked that the tone quality was very pleasant and gave the Mach 1 an authoritative note without an ear shattering loudness.

Everyone who's heard my car with the 'Flows on likes them. A couple of buddies who really aren't too high on the Mach loved the sound of the Flows. They aren't enough for a lot of people, but they are plenty loud for me.

That write up claiming a 12rwhp/8rwt gain from the Flows is consistent with my seat of the pants assesement. The car just seems to run a little stronger. The change in the A/F ratio's may explain why it seemed to run better with the Flows after I disconnected the battery to reset the computer.

Jhmaem · 07-20-2004, 12:44 PM

Thanks for the detailed info. One more question. Why not just get a muffler, why change out so much of the piping under the car? Isn't the muffler what makes all the difference?

DanK · 07-20-2004, 02:57 PM

Quote:

Originally posted by Jhmaem
Thanks for the detailed info. One more question. Why not just get a muffler, why change out so much of the piping under the car? Isn't the muffler what makes all the difference?

YOu can do that too. tach9 tried that also(do a search) and found that at stock or near stock hp levels changing out the muffs was within a couple of hp of doing a whole cat-back. The larger piping will give a little deeper sound too. If I had my way.... I would want a mandrel bent 2 1/4" cat-back but they don't make one. Try it out and verify tach9's results. I went ahead with the exhaust I got so there is plenty of flow for mods done down the road. 2 1/4" would be perfect.

FordSeL957 · 07-20-2004, 04:32 PM

Quote:

Originally posted by Ralph Greene
I have the Magnaflow X/cats and Magnaflow catback. It's not overly loud at cruising RPM's, the 2 were designed by Magnaflow to work together, and I noticed no low RPM power loss. But my tune is good.

While I appreciate tach9 and crew's hard work testing the catbacks, I don't think it proved much by adding different catbacks to a car with CAI and not tuning for each. It did prove, to me anyway, that all the catbacks are similar in the power they make, and your decision should be based on factors other than reported power gains or losses. I believe Tach9 has said the same thing.

I also had the Magnaflow X/cats and catback installed. The power gain was noticable the second I put my foot to the floor. I couldn't be happier. It was $950.00 well spent.

Funhog · 11-29-2005, 11:13 PM

I just posted something about exhaust in a thread like 10 minutes ago but after reading this I have more questions now. I am a little worried to put aftermarket exhaust on because of what people have been saying about the A/F and having to get a tuner. I plan on getting CAI and putting on an o/r h pipe and either a flowmaster or slp loudmouth catback. If I do not get a tuner, will it mess up the car? I just want a little more hp with a better sound, and now I have to spend more money on a tuner? Do you think this setup would sound nice: stock exhaust manifold, o/r h, with the slp loudmouth?

ruggersmach · 11-30-2005, 04:47 PM

Quote:

Originally Posted by Funhog

I just posted something about exhaust in a thread like 10 minutes ago but after reading this I have more questions now. I am a little worried to put aftermarket exhaust on because of what people have been saying about the A/F and having to get a tuner. I plan on getting CAI and putting on an o/r h pipe and either a flowmaster or slp loudmouth catback. If I do not get a tuner, will it mess up the car? I just want a little more hp with a better sound, and now I have to spend more money on a tuner? Do you think this setup would sound nice: stock exhaust manifold, o/r h, with the slp loudmouth?

You can see what I have done in my signature, the car runs great and my fuel economy hasn't changed, except when I haul a$$ everywhere. I have not had my car tuned. But I agree with all the other posts, if you change stuff on the intake then you would probably would need to have it tuned. There are some guys out there that know this stuff way better than me, I'm sure they will chime in......

Torched 03 Mach · 12-20-2005, 07:46 PM

Quote:

Originally Posted by Funhog

I just posted something about exhaust in a thread like 10 minutes ago but after reading this I have more questions now. I am a little worried to put aftermarket exhaust on because of what people have been saying about the A/F and having to get a tuner. I plan on getting CAI and putting on an o/r h pipe and either a flowmaster or slp loudmouth catback. If I do not get a tuner, will it mess up the car? I just want a little more hp with a better sound, and now I have to spend more money on a tuner? Do you think this setup would sound nice: stock exhaust manifold, o/r h, with the slp loudmouth?

I am facing the same question

Jhmaem · 07-23-2004, 03:01 AM

I am just going to start with mufflers on '04 Mach. Does anyone have any they really like or really hate? I don't want something too loud. Does anyone have Bassani? I've heard good things about them.

Here is a good website with a hundred different exhaust sounds and lots of info. if you have not seen it yet.

Incidentally, my ford dealer was fine with me installing a muffler (or cat-back), but said that the exhaust and a K&N filter were the only mods. allowed.

http://www.mustangexhaust.com/

ICANGO · 12-10-2005, 11:08 AM

I have the slp loudmouth catbacks on my 03 and I am extremely happy with the performance and the sound. It has made the car a real headturner.

whiplash306 · 01-08-2006, 07:45 AM

These Machs seem to be a bit finicky when it comes to mods, huh? Gone are the Fox body days of just throwin' on an exhaust system, screw any unnecessary tuning and enjoy an immediate hp/tq gain. Anyhow, my favorite sounding exhaust is the MAC catback. Does anyone have any info on that? Will there be a loss of hp/tq downlow if I install a MAC catLESS prochamber and MAC catback? Will that cause my motor to lean out? From anyone who knows, what are your thoughts on this setup? Also, does this car prefer 2 1/2" exhaust diameter or more?

DanK · 01-08-2006, 07:25 PM

Quote:

Originally Posted by whiplash306

These Machs seem to be a bit finicky when it comes to mods, huh? Gone are the Fox body days of just throwin' on an exhaust system, screw any unnecessary tuning and enjoy an immediate hp/tq gain. Anyhow, my favorite sounding exhaust is the MAC catback. Does anyone have any info on that? Will there be a loss of hp/tq downlow if I install a MAC catLESS prochamber and MAC catback? Will that cause my motor to lean out? From anyone who knows, what are your thoughts on this setup? Also, does this car prefer 2 1/2" exhaust diameter or more?

Not from personal experience, but I've been researching the Pro-Chamber the past couple days and there is a little low end loss but you get it back at higher rpms. Ideally at near stock hp levels I'd say a mandrel bent 2 1/4" (not available to my knowledge) to 2 1/2". Over 450hp they say you can get gains from 3" diameter.

04mach_man · 02-21-2006, 08:51 AM

JLT CAI is great for the Mustang, Only problemsand JLT tells you when you purchase it that your vehicle will run leaner. A 4" CAI is alot of air! u can correct the lean burn is you have a tuner Sniper, Diablo, SCT, ect. Also a AFR monitor would be good to have lke the NGX AFX, Or Innovatives. U can tell how much to richin the car up. standard AFR is 14.9 The leaner you get the more fuel economy less power. I am tuning my Mach around 11.1 to 12.2 but i am blown.

TRmach03 · 08-13-2006, 04:39 PM

this is exactly what i needed to help me decide which cat back to get, the slp's or the bassanis .. now all i have to do is read the whole thing, ****

3150Mach1 · 08-13-2006, 06:44 PM

Quote:

Originally Posted by TRmach03

this is exactly what i needed to help me decide which cat back to get, the slp's or the bassanis .. now all i have to do is read the whole thing, ****

Don't forget to look at MRT.!!!!

ponygt65 · 08-14-2006, 04:12 AM

Quote:

Originally Posted by 03Mach150BP

Don't forget to look at MRT.!!!!

Or the Boral Stingers...

Mach&Roll · 08-13-2006, 06:47 PM

Good info on this thread. I am subscribing.

AZ Mike · 08-14-2006, 03:17 AM

I'm using 2 chamber flowmasters and really happy with the sound and power. My X pipe will be installed next weekend.

One other thing I want to bring up... With horsepower gains you generally lose low end power. So just put in a 4.30 gear and call it a day

Mach&Roll · 08-14-2006, 08:09 AM

Quote:

Originally Posted by AZ Mike

I'm using 2 chamber flowmasters and really happy with the sound and power. My X pipe will be installed next weekend.

One other thing I want to bring up... With horsepower gains you generally lose low end power. So just put in a 4.30 gear and call it a day

What x pipe brand are you running.

Blood on Blood · 09-04-2006, 01:04 AM

For flowmasters, the o/f h-pipe sounds better.

For Magnaflow catback, the UPR o/r x pipe combo sounds good and is all around balance. Inside the car, not quiet - yet you can still hold a conversation without yelling. Outside the car, it sounds tough...

Mach&Roll · 09-04-2006, 01:15 AM

I like the raspy sound with the flows. WHen it comes to exhaust it is all personal preference.

rifkin · 12-28-2006, 03:46 AM

http://youtube.com/watch?v=QIZNNfrQX...elated&search=

Found that, it says its just the stinger catback and it sounds loud and nasty.

SuddenHead · 08-14-2008, 05:00 AM

It seems like mach1review.com not working.

Fauxnali · 02-13-2012, 05:12 PM

Quote:

Originally Posted by suddenhead

it seems like mach1review.com not working.

^^ x2

07-19-2004, 09:04 PM	#3
BoulderMach Registered User Join Date: Apr 2004 Location: Boulder Posts: 685	Nice link The testers remarked that the tone quality was very pleasant and gave the Mach 1 an authoritative note without an ear shattering loudness. Everyone who's heard my car with the 'Flows on likes them. A couple of buddies who really aren't too high on the Mach loved the sound of the Flows. They aren't enough for a lot of people, but they are plenty loud for me. That write up claiming a 12rwhp/8rwt gain from the Flows is consistent with my seat of the pants assesement. The car just seems to run a little stronger. The change in the A/F ratio's may explain why it seemed to run better with the Flows after I disconnected the battery to reset the computer.

07-20-2004, 12:44 PM	#4
Jhmaem Mach memories Join Date: Jun 2004 Location: Federal Way, Washington Posts: 30	cat-back Thanks for the detailed info. One more question. Why not just get a muffler, why change out so much of the piping under the car? Isn't the muffler what makes all the difference?

11-29-2005, 11:13 PM	#7
Funhog Mach and Harley owner Join Date: Nov 2005 Location: Fort Riley, KS Posts: 227	Re: Exhaust Review by mach1review I just posted something about exhaust in a thread like 10 minutes ago but after reading this I have more questions now. I am a little worried to put aftermarket exhaust on because of what people have been saying about the A/F and having to get a tuner. I plan on getting CAI and putting on an o/r h pipe and either a flowmaster or slp loudmouth catback. If I do not get a tuner, will it mess up the car? I just want a little more hp with a better sound, and now I have to spend more money on a tuner? Do you think this setup would sound nice: stock exhaust manifold, o/r h, with the slp loudmouth? __________________ 92 5.0LX - CAI, TB, Shorties, O/R H, Flows, 3.55, A/C and Smog Delete, U/D Pullies, Auto w/ Shift Kit - SOLD 03 Mach 1 - P1SC with 3.60", bored .020 over, forged bottom end, FRPP shorties, Magnaflow catted X, Magnapacks, Tokico blues, H&R SS, MM C/C plates, Spec 2+, Steeda FWA, MM clutch quadrant, MGW Orange, FR500 17x9/17x10.5 My Rides

07-23-2004, 03:01 AM	#10
Jhmaem Mach memories Join Date: Jun 2004 Location: Federal Way, Washington Posts: 30	muffler choice? I am just going to start with mufflers on '04 Mach. Does anyone have any they really like or really hate? I don't want something too loud. Does anyone have Bassani? I've heard good things about them. Here is a good website with a hundred different exhaust sounds and lots of info. if you have not seen it yet. Incidentally, my ford dealer was fine with me installing a muffler (or cat-back), but said that the exhaust and a K&N filter were the only mods. allowed. http://www.mustangexhaust.com/

12-10-2005, 11:08 AM	#11
ICANGO Registered User Join Date: Oct 2005 Location: Wis. Rapids, Wi. Posts: 221	Re: Exhaust Review by mach1review I have the slp loudmouth catbacks on my 03 and I am extremely happy with the performance and the sound. It has made the car a real headturner.

07-19-2004, 02:38 AM	#1
Orange whip 04 Never Fear Smith Is Here Join Date: Apr 2004 Location: Saline, Michigan Posts: 3,187	A cat back system generaly is everything from the catalyst toward the rear of the car. Which include mufflers, tailpipes, and tips. Some systems have the mufflers welded onto the rest of the tail pipes making it a two piece system. SLP makes their system in 3 pieces which makes installation a piece of cake. Some systems have mid inlet pipes, mufflers, talipipes, and tips. Depends on what system you want to use. This gerneraly is how a cat back system is defined.

01-08-2006, 07:45 AM	#12
whiplash306 Registered User Join Date: Dec 2005 Location: Harker Heights, Texas Posts: 137	Re: Exhaust Review by mach1review These Machs seem to be a bit finicky when it comes to mods, huh? Gone are the Fox body days of just throwin' on an exhaust system, screw any unnecessary tuning and enjoy an immediate hp/tq gain. Anyhow, my favorite sounding exhaust is the MAC catback. Does anyone have any info on that? Will there be a loss of hp/tq downlow if I install a MAC catLESS prochamber and MAC catback? Will that cause my motor to lean out? From anyone who knows, what are your thoughts on this setup? Also, does this car prefer 2 1/2" exhaust diameter or more? __________________ CURRENT CARS -'86 Buick Grand National (605.1 rwhp/687.8 rwtq on pump gas) -'02 ZO6 (423 rwhp/391 rwtq) -'08 Mazdaspeed 3 (The Wife's) PAST CARS -All Mustang GT's: '66, '87, '90, '00, '03, '85, '89 '04 Cobra Vert, '04 Mach I -'04 Subaru WRX STi

02-21-2006, 08:51 AM	#14
04mach_man Registered User Join Date: Feb 2006 Location: El paso Posts: 247	Re: Exhaust Review by mach1review JLT CAI is great for the Mustang, Only problemsand JLT tells you when you purchase it that your vehicle will run leaner. A 4" CAI is alot of air! u can correct the lean burn is you have a tuner Sniper, Diablo, SCT, ect. Also a AFR monitor would be good to have lke the NGX AFX, Or Innovatives. U can tell how much to richin the car up. standard AFR is 14.9 The leaner you get the more fuel economy less power. I am tuning my Mach around 11.1 to 12.2 but i am blown.

08-13-2006, 04:39 PM	#15
TRmach03 Registered User Join Date: May 2006 Location: Fair Lawn, New Jersey Posts: 139	Re: Exhaust Review by mach1review this is exactly what i needed to help me decide which cat back to get, the slp's or the bassanis .. now all i have to do is read the whole thing, ****

08-13-2006, 06:47 PM	#18
Mach&Roll On the aftermarket trail Join Date: Nov 2004 Location: Pleasant Grove, UT Posts: 2,588	Re: Exhaust Review by mach1review Good info on this thread. I am subscribing. __________________ Rock out with your Mach out! Hang out with you Stang out! 2005 Mustang Gt * 20" wheels * Flowmaster Axel Back Exhaust * K&N CAI Intake * SCT custom tune * Pypes X-Pipe * Shaker 1000 audio system 2004 White Mach 1 * Super Forty Flowmaster Mufflers * Bassani On/Off road X-pipe * Air Silencer Removed * K&N Drop in Filter

08-14-2006, 03:17 AM	#19
AZ Mike Registered User Join Date: Jul 2004 Location: Tucson AZ Posts: 12	Re: Exhaust Review by mach1review I'm using 2 chamber flowmasters and really happy with the sound and power. My X pipe will be installed next weekend. One other thing I want to bring up... With horsepower gains you generally lose low end power. So just put in a 4.30 gear and call it a day

09-04-2006, 01:04 AM	#21
Blood on Blood rumble baby rumble Join Date: Mar 2006 Location: USA Posts: 120	Re: Exhaust Review by mach1review For flowmasters, the o/f h-pipe sounds better. For Magnaflow catback, the UPR o/r x pipe combo sounds good and is all around balance. Inside the car, not quiet - yet you can still hold a conversation without yelling. Outside the car, it sounds tough... __________________ a "To preserve liberty, it is essential that the whole body of people always possess arms, and be taught alike especially when young, how to use them." Richard Henry Lee "...to disarm the people - that was the best and most effectual way to enslave them." George Mason

09-04-2006, 01:15 AM	#22
Mach&Roll On the aftermarket trail Join Date: Nov 2004 Location: Pleasant Grove, UT Posts: 2,588	Re: Exhaust Review by mach1review I like the raspy sound with the flows. WHen it comes to exhaust it is all personal preference. __________________ Rock out with your Mach out! Hang out with you Stang out! 2005 Mustang Gt * 20" wheels * Flowmaster Axel Back Exhaust * K&N CAI Intake * SCT custom tune * Pypes X-Pipe * Shaker 1000 audio system 2004 White Mach 1 * Super Forty Flowmaster Mufflers * Bassani On/Off road X-pipe * Air Silencer Removed * K&N Drop in Filter

12-28-2006, 03:46 AM	#23
rifkin Registered User Join Date: Dec 2006 Location: All over, Military Posts: 33	Re: Exhaust Review by mach1review http://youtube.com/watch?v=QIZNNfrQX...elated&search= Found that, it says its just the stinger catback and it sounds loud and nasty.

08-14-2008, 05:00 AM	#24
SuddenHead Registered User Join Date: Mar 2008 Location: Moscow, Russia Posts: 42	Re: Exhaust Review by mach1review It seems like mach1review.com not working.

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