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Old 11-15-2012, 09:00 AM   #1
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Exhaust upgrade

Currently I have this http://www.americanmuscle.com/99-04-v6-mac-catback.html
What do I have to do to get it to be true dual and sound even better? Do I just need a midpipe?
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Old 11-15-2012, 09:12 AM   #2
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Originally Posted by V6in
Currently I have this http://www.americanmuscle.com/99-04-v6-mac-catback.html
What do I have to do to get it to be true dual and sound even better? Do I just need a midpipe?
You should cut the y pipe out and used a h or x. But you could always do divorced that's what I hav and it's louder that the midpipe
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Old 11-15-2012, 10:04 AM   #3
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^ This
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Old 11-15-2012, 12:30 PM   #4
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Originally Posted by V6in View Post
Currently I have this MAC Mustang Dual Exhaust Conversion Kit (99-04 V6) TK3849 - Free Shipping!
What do I have to do to get it to be true dual and sound even better? Do I just need a midpipe?
Quote:
Originally Posted by ProudSixxer26 View Post
You should cut the y pipe out and used a h or x. But you could always do divorced that's what I hav and it's louder that the midpipe
V6in,

ProudSixxer definitely pointed you in the right direction. There's a few different options you could take here. You can cut your Y-pipe and weld in the rest of an X/H, You could get a custom mid pipe made or purchase a true dual system.

Either of these options would work, Let me know if you have any questions!

-Dan
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Old 11-15-2012, 10:46 PM   #5
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What I want to do is get Mac long tubes and some kind of x pipe... But still be able to pass emissions.

---------- Post added at 10:46 PM ---------- Previous post was at 10:46 PM ----------

What I want to do is get long tubes and some kind of x pipe... But still be able to pass emissions.
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Old 11-16-2012, 12:13 AM   #6
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Currently I have this MAC Mustang Dual Exhaust Conversion Kit (99-04 V6) TK3849 - Free Shipping!
What do I have to do to get it to be true dual and sound even better? Do I just need a midpipe?
Glad I joined here so now I know better. I was planning on buying that kit. Not that it wouldnt fit my needs but sounds like I can get some divorced pipes fabbed up and installed for less than $300 at a local shop. Shoot even getting an H pipe might be cheaper.
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Old 11-16-2012, 01:41 AM   #7
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Originally Posted by V6in View Post
What I want to do is get Mac long tubes and some kind of x pipe... But still be able to pass emissions.

---------- Post added at 10:46 PM ---------- Previous post was at 10:46 PM ----------

What I want to do is get long tubes and some kind of x pipe... But still be able to pass emissions.
then just make sure you have cats installed...hi flows would fit nicely
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Old 11-16-2012, 09:55 AM   #8
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Quote:
Originally Posted by V6in
What I want to do is get Mac long tubes and some kind of x pipe... But still be able to pass emissions.

---------- Post added at 10:46 PM ---------- Previous post was at 10:46 PM ----------

What I want to do is get long tubes and some kind of x pipe... But still be able to pass emissions.
Ya if u wanna pass emissions keep the cats and I you hav the money go for LT and a h pipe. I plan on getting and h pipe and LT but all I had money for was divorced and I'm very happy with it!
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Old 11-16-2012, 10:04 AM   #9
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Quote:
Originally Posted by ProudSixxer26

Ya if u wanna pass emissions keep the cats and I you hav the money go for LT and a h pipe. I plan on getting and h pipe and LT but all I had money for was divorced and I'm very happy with it!
How much total did you spend on your divorced pipes? If you don't mind me asking?
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Old 11-16-2012, 11:23 AM   #10
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I know this has been asked before prolly but whys he difference in an h-pipe and divorced I have my mufflers order and I don't know which to do
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Old 11-16-2012, 11:52 AM   #11
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Old 11-16-2012, 11:53 AM   #12
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Thank you that is pretty cut and dry lol... The tens are loud to begin in your opinion would you do an. H or divorced
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Old 11-16-2012, 11:56 AM   #13
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H. I've had both divorced and x pipe and the h sounds nice and deep especially if your going with a straight through muffler like the 10 series
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Old 11-16-2012, 12:09 PM   #14
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Originally Posted by brooksyx

How much total did you spend on your divorced pipes? If you don't mind me asking?
I spent 500 and it's all stainless steal and I live in mass so it's exspensive up here
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Old 11-16-2012, 12:14 PM   #15
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another option for midpipe is a prochamber...it's like a fun combo of both x and h pipe sound wise. look for them used to come out cheaper. im planning to find some 10s to mix with my prochamber
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Old 11-16-2012, 12:19 PM   #16
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Originally Posted by 1slosix
another option for midpipe is a prochamber...it's like a fun combo of both x and h pipe sound wise. look for them used to come out cheaper. im planning to find some 10s to mix with my prochamber
That would sound nasty

---------- Post added at 12:19 PM ---------- Previous post was at 12:18 PM ----------

Quote:
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That would sound nasty
In a good way
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Old 11-16-2012, 01:42 PM   #17
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With me having the tips and mufflers its gonna cost 275 to 300 to get it all done
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Old 11-16-2012, 08:11 PM   #18
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With me having the tips and mufflers its gonna cost 275 to 300 to get it all done
Is that with piping and labor and is it stainless cause if it is that's a GREAT deal
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Old 11-16-2012, 08:13 PM   #19
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Yea that's for all of it and the tips I'm not sure they came off another vehicle I got them for free
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Old 11-16-2012, 08:18 PM   #20
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Yea that's for all of it and the tips I'm not sure they came off another vehicle I got them for free
Ur so lucky took a summer of working to afford mine but all depends where u live what mufflers are u gettin
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Old 11-16-2012, 08:29 PM   #21
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Done got them order I got $40 off the original price for both of them

---------- Post added at 08:29 PM ---------- Previous post was at 08:28 PM ----------

10 series flowmasters
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Old 11-17-2012, 08:02 AM   #22
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Done got them order I got $40 off the original price for both of them

---------- Post added at 08:29 PM ---------- Previous post was at 08:28 PM ----------

10 series flowmasters
Those are gonna sound good bro post a vid when it's all done
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Old 11-17-2012, 04:45 PM   #23
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Some one else threw out the idea of using a dual in dual out single chamber muffle as a mid pipe, I wanna do it with a flow 10
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Old 11-17-2012, 04:47 PM   #24
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Is there an clips to see how that would sound
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Old 11-17-2012, 05:07 PM   #25
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Is there an clips to see how that would sound
No not yet, Im still looking around but I really wanna try it
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Old 11-18-2012, 12:34 AM   #26
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if you want to try something different i've always wanted to just use a dual in dual out muffler as the mid-pipe and then have straight pipes from the muffler/midpipe back.
DON'T go with a X-pipe. They do not sound good on are V6's. H-pipe, Prochamber or divorced are what you want.
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Old 11-19-2012, 03:42 PM   #27
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Originally Posted by V6in View Post
Currently I have this MAC Mustang Dual Exhaust Conversion Kit (99-04 V6) TK3849 - Free Shipping!
What do I have to do to get it to be true dual and sound even better? Do I just need a midpipe?
Buy some MAC L.T. headers and highflow cats, and 2 short pieces of pipe to match. Make sure you get the same size all around as your axleback came with (2", 2.5", ...). make sure you order the collectors for your headers also (usually have to call Mac, they only $25). Also be sure to get some Motorcraft OEM header gaskets; do not use the paper ones that come with aftermarket headers. Find a non-corporate garage that will do the simple task of cutting out your bs cats and y-pipe, and replacing them with your new long tubes and high flow cats, without charging you $100 an hour and pretending it took them 6 hours. They can use the extra pipe to connect everything to your mufflers.
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Old 11-19-2012, 03:50 PM   #28
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I know this has been asked before prolly but whys he difference in an h-pipe and divorced I have my mufflers order and I don't know which to do
H pipe has a short pipe connecting the two exhaust pipes. This allows airflow between the two, and evens out the pressure in cars that need it. Mustangs are even fire engines, and do not need the H at all.
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Old 11-20-2012, 11:17 AM   #29
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Anybody know how it would sound with just two cats cut off cause I'm thinking I can get it done cheaper by letting them keep the cats
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Old 11-20-2012, 11:40 AM   #30
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Anybody know how it would sound with just two cats cut off cause I'm thinking I can get it done cheaper by letting them keep the cats
Well it certainly won't hurt sound. I hollowed mine our a while back, and it sounds deeper, but suffers a tad on torquiness
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Old 11-21-2012, 08:09 AM   #31
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Anybody know how it would sound with just two cats cut off cause I'm thinking I can get it done cheaper by letting them keep the cats
Most people I have heard talk about this agree that catless V6ers sound horrible. IMO, catless V8s do too. you will also be putting out a good deal more pollution, and will need to use a tune or resistors to get rid of CEL for your missing o2 sensors. If you just ride with no cats/no sensors/no tune your MPG and performance will suffer from running rich, as your car will think your rear sensors are malfunctioning.

Better to get the cats now, and while your at it, get ones you wont need to replace later . They go for a long time.
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Old 11-21-2012, 08:18 AM   #32
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High flows FTW
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Old 11-22-2012, 08:59 AM   #33
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I forgot to mention, if the shop is offering a discount to you for letting them keep your cats, Ill wager it is less than they are going to get from junking them. I got $140 for mine. I would just pay for the install and junk the cats yourself, unless they are giving you $150 off.
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Old 11-22-2012, 03:01 PM   #34
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Most people I have heard talk about this agree that catless V6ers sound horrible. IMO, catless V8s do too. you will also be putting out a good deal more pollution, and will need to use a tune or resistors to get rid of CEL for your missing o2 sensors. If you just ride with no cats/no sensors/no tune your MPG and performance will suffer from running rich, as your car will think your rear sensors are malfunctioning.

Better to get the cats now, and while your at it, get ones you wont need to replace later . They go for a long time.
I thought only the front o2 sensors controlled the fuel mixture.
The rear ones only tell the computer when its pushing out two much pollution. I don't think they change anything. They'll just throw a check engine light if you remove the cats.
The rear o2 sensors measure the efficiency of the catalytic converters.

if you removed all the cats you would probably gain some horsepower, but since it would be free flowing with almost no back pressure you'd be loosing torque. Torque is where all the fun is at.

People remove there cats all the time, mostly in states where the emission testing isn't done as often. The only reason I can see to get a tune is to remove the annoying check engine light, and to gain a little more power.
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