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BodyKits=PantiesDrop
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13,167 Posts
Discussion Starter #1 (Edited)
The next thing most people install on their cars is an aftermarket exhaust to help it breathe better to free up a few ponies as well as give it a sportier tone. Headers are covered in a different topic. All these models will fit all Duratec motors unless otherwise specified. The only exception are those with the factory 06-07 Street Appearance Package which may require a little modification.

Common brands are:

Magnaflow

Borla (discontinued)
Trubendz
MBRP
FocusSport regular and stealth models
F2
NEW!Ford Racing (2012 Only)

"Lunchbox delete"

There is also always the option of having a system custom ran at a local shop. Make sure you are specific about exactly what you want done so you don't end up with a cheap muffler and 1" rusty tubing.


There are many issues to discuss when talking about cat back systems. Here are a few of them.

SOUND
One thing an aftermarket system will always have over stock is a distinctive sound. Sound is a personal choice, whether you want it to be loud and deep or quiet and rumbling, there is a cat back setup for you.

Many systems are much louder than stock. When this becomes a problem especially when combined with a race header, you have a few things you can do to quiet your system down. FocusSport offers a stealth option which adds a larger resonator to the system, Trubendz offers the ability to customize your set up by choosing your own muffler and resonator.

PERFORMANCE
This is to me one of the most important aspects of a an exhaust system. To start with, when choosing your setup, you need to take into consideration some of your future plans. If you are planning on staying relatively mild and just using bolt ons, then a 2.25” system will be more than enough for you. However, if you plan on a serious N/A build or the use of forced induction, a 2.5” system will provide much better gains. Borla, MBRP and Trubendz make the best 2.5” cat back systems

PRICE
Cat back setups can run anywhere from $125 all the way up to $650, its up to you what you want to spend. The gains are not increased by spending more however the advantages of Stainless Steel (especially in northern climates) are well worth the money.

LINKS:

Trubendz Exhaust System Install on a 08' Sedan

Exhaust Videos and Sound Clips

Comments, discussion, and corrections welcome!
 

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Correction: Focus Sport Stealth does not add a resonator, as the Sport model has a resonator. It changes the resonator to a much larger one. Some people have described it as having 2 mufflers instead of a muffler and a resonator.
 

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Infidel
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Question: Do you need to let your ECU reset after putting on an exhaust system?
 

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No, but it is generally recommended. It will "get used to it" faster if you do. Otherwise, it may run somewhat less than ideal for the first tank of gas or so.
 

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love my red focus
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i had no problem with the mbrp exhaust with the S.A.P.
 

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BodyKits=PantiesDrop
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Discussion Starter #9
I thought we had agreed that 2.5" is best for any duratec (at least 2.3) even with only minor mods.
2.25" is best for minor mods but honestly it doesn't really matter.

and corrected that point 1-ST
 

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The standard recommendation is to reset the pcm every time you mod anything. I started my post with "No" and that's the real truth. Sorry about that. Any slight adjustments necessary should be made instantly. It's really your driving style that the PCM adapts to, which is expedited by a reset.
 

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Freeskiing Fanatic!
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Can i suggest adding a section about fitment, like how the SAP needs an extension to fit properly, and how zx3/5 exhausts wont fit zx4s without an extension.

Evan, i see you have been listening to The Lonely Island haha. flippy floppies...
 

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my price comparison
magnaflo
2008 L4 2.0L; Coupe
6 x 14 in. Muffler, 2.25 in. Tubing, Rear Exit, 3.5 in. Tip, 15864 $616.53

Mandrel Exhaust Systems
front pipe $35
front pipe with cat $100
exhaust tubing kit $120
magnaflow cat converter $75
resonator $70

MBRP nothing on site for 08

fswerks formerly focus sport
2008 Coupe & Sedan Exhaust - 2.0L Duratec FS022D(Q/CC/CCQ) $349.95
 

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^ dont say there is nothing for the 08.

the part # for the 08 exhaust from focussport is: FS022D(Q/CC/CCQ)

same as the duratec zx4 exhaust. so just buy an MBRP exhaust for a sedan, and it'll fit an 08.
 

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my price comparison
magnaflo
2008 L4 2.0L; Coupe
6 x 14 in. Muffler, 2.25 in. Tubing, Rear Exit, 3.5 in. Tip, 15864 $616.53......
Hey kevin24018, I have the magnaflow 15864 just installed and I love it, they are cheaper on ebay but I wanted a warranty(salt in winter kills an exhaust) so I got it here. magnaflow 15864, or you can try one of the vendors here, they are always running sales/specials. either way its a great system and very easy to install.

[thumb][thumb]
 

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^ dont say there is nothing for the 08.

the part # for the 08 exhaust from focussport is: FS022D(Q/CC/CCQ)

same as the duratec zx4 exhaust. so just buy an MBRP exhaust for a sedan, and it'll fit an 08.
2008 Coupe & Sedan Exhaust - 2.0L Duratec FS022D(Q/CC/CCQ) $349.95
I already posted this in the original post. I guess I don't understand what you are saying.
 

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Hey kevin24018, I have the magnaflow 15864 just installed and I love it, they are cheaper on ebay but I wanted a warranty(salt in winter kills an exhaust) so I got it here. magnaflow 15864, or you can try one of the vendors here, they are always running sales/specials. either way its a great system and very easy to install.

[thumb][thumb]

nothing listed for 08, newist they list was 06 I think, if other years fit they really should list it, makes me wonder about a company who wouldn't think of that.....[dunno]
 

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BodyKits=PantiesDrop
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Discussion Starter #18
they just haven't updated their catalogs, big deal.

what honhon was saying is that "according to FocusSport, the part # for their '08 exhaust is the same number as their ZX4 exhaust. That being true then you can order a ZX4 exhaust from MBRP and it will fit your '08 just fine."
 

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When they say (focus sport) you are going to need to extend the exhaust for the zx-4 with SAP how much are we talking about? Where in the line is the best place to do it?
 
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