Mac cat back

stangman11 · Jan 4, 2010

Hey guys,
Ok well I have my 2000 GT vert, its my third of all the mustangs I have owned but the only one I have ever bought that was BONE STOCK so I am starting with a blank canvas. My main next step is actually opening up that restricted exhaust that ford puts on them from the factory so I can actually hear the exhaust note.

But here lies my deilema.......I know I am going to end up getting a MAC exhaust, that is all I have ever run and I love the sound but, is it really worth it to buy the whole cat back really just for the bigger piping and tips? Or can I just get the same great sound out of welding in some flow paths and keeping my originial ford piping, completeing my exhaust for half the cost of buying an entire cat back.

I dunno guys I have been back and forth about what to do for the past month I need insight give me some feedback

Thanks

Icemanstang · Jan 4, 2010

For what you will pay to have a welder cut off your old exhaust
and weld up a new exhaust you mite as well just purchase the
entire catback exhaust kit and save yourself alittle time and money.
Why do you want a Mac catback exhaust so bad?
Why chambered mufflers?

D-BOI · Jan 4, 2010

MAC is pretty sweet sounding on my buddys 03 terminator. ive got flowmaster 60 series on mine with an H pipe and when im next to his i cant even hear my car its like im driving a prius lol.

Big Show 96 · Jan 5, 2010

4 welds @ $15 a weld plus $120 for the mufflers. $180. Cat back $320 +1 on the Macs. I would go with the weld in's.

Deleted member 38176 · Jan 5, 2010

I had my old Dronemasters chopped off and a pair of MAC Flowpaths welded-in for $150 including mufflers.

Pretty big difference considering that the MAC catback alone (before install) is $350+!

stangman11 · Jan 5, 2010

So what Im hearing is go for the weld ins cause its half the cost and same great sound?

oxfordgt · Jan 5, 2010

I can get you a great deal on a MAC catback, I have my old one sitting in my storage unit. PM me if interested.

fiveoho · Jan 5, 2010

stangman11 said:
So what Im hearing is go for the weld ins cause its half the cost and same great sound?

toolow91 has a set of Mac flowpaths for sale. Send him a PM and maybe you guys can work something out

http://www.stangnet.com/mustang-forums/members/toolow91/

stangman11 · Jan 5, 2010

fiveoh thanks I just talked to him

fiveoho · Jan 5, 2010

np buddy

stangman11 · Jan 5, 2010

But back to the main topic, you guys feel I can get the same sound and save alot of money by just welding a set in right?

Dr Jay · Jan 5, 2010

I'm running a stainless mac catback w/mrt h pipe and I love the sound. To answer your question I would spend the extra for the catback if your still running a 10 year old stock system.

deftsound · Jan 5, 2010

Well I can tell you exactly what you want to know here since I have Never bought a catback and have always ran weld-ins.

IMO Catbacks are a waste of money. Plain and simple (unless you're getting a 3"). Some people will disagree with me im sure, but i speak from experience and a lot of research. Take it or leave it. All you're paying for is the sound and a nice looking set of tips.

I have Mac flowpath weld-ins and slp tips welded into the stock catback. It sounds the same as the catback would and i spent half of what a new catback would cost. Yes, buying the whole catback is more convenient but if your a budget minded enthusiast looking for the best bang for your buck don't waste your money.

I think i payed 80$ for the mufflers, had them welded in for 50$; spend the same on the exhaust tips. So i guess all in all i spend about about 200-225$ plus i have the SLP tips which are waaay cooler than the mac tips.

And i can testify that you don't need a new catback to make good hp numbers. Like i said i am still running the stock catback with an o/r h pipe and longtubes and i dynoed at 428hp (which are dang good numbers for my mods IMO)...now, sometime in the future i may upgrade to a 3" catback and im sure ill gain a few hp there, but, all in all, upgrading to a 2.5" catback for the money you will spend is just not worth it when you can just weld in a new set of mufflers and get the sound you want plus the same hp (minus maybe .5 - 1hp) for way less money.

stangman11 · Jan 5, 2010

well you told me exactly what i wanted to hear, done im welding them in.

deftsound · Jan 5, 2010

Icemanstang said:
For what you will pay to have a welder cut off your old exhaust
and weld up a new exhaust you mite as well just purchase the
entire catback exhaust kit and save yourself alittle time and money.
Why do you want a Mac catback exhaust so bad?
Why chambered mufflers?

There is a thread around here somewhere comparing the different aftermarket mufflers and the respective cfm's they flow and to a lot of people's surprise (including me) the Mac mufflers came in second, in over-all flow. So, just because its a chambered muffler does Not mean it doesn't flow well.

Oh and a decent welder isn't going to charge more than 30-50$ to weld in a new set of mufflers...unless they are crooked and or suck at their job.

westgastang5.0Coyote · Jan 5, 2010

Too me it's best to just get the mufflers and save that extra money for other mods like cams, heads, lt's etc.

Deleted member 38176 · Jan 5, 2010

stangman11 said:
But back to the main topic, you guys feel I can get the same sound and save alot of money by just welding a set in right?

The mufflers give you the sound, not the tubing.

Icemanstang · Jan 6, 2010

deftsound said:
There is a thread around here somewhere comparing the different aftermarket mufflers and the respective cfm's they flow and to a lot of people's surprise (including me) the Mac mufflers came in second, in over-all flow. So, just because its a chambered muffler does Not mean it doesn't flow well.

Oh and a decent welder isn't going to charge more than 30-50$ to weld in a new set of mufflers...unless they are crooked and or suck at their job.

I don't think the Mac mufflers are that bad.I know people buy chambered
mufflers for sound though.Straight through designed mufflers or straight pipes
flow better than chambered mufflers do.If you do buy a Mac catback definitley get the coated version.I have seen one of my friends how bought
the non-coated version of the Mac catback.After being exposed to the brutal
and harsh winters here in Pennsylvania for a few years the casing of one of the mufflers had a hole rusted/corroded right through one of his Mac mufflers from the road salt and moister/oxidation.
The welders in my area have a flat fee of $80 per. hour to weld up a exhaust system for someone.This would be a excuse to just buy a full catback and
end it.

04GTBLKVERT · Jan 7, 2010

Mac is cool but I love my setup YouTube - Mustang Gt Magnaflow Magnapacks & Pypes o/r x

stangman11 · Jan 7, 2010

Nice man that sounds SICK! Magnaflows are expensive though but for a very good reason cause they really are a great peice.

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