Catback Exhaust Systems


Just like installing a Cold Air Intake, upgrading the factory Mustang stock oem exhaust with a catback exhaust is your next basic performance modification for your 2006 Ford Mustang. Upgrading your exhaust system can give you increased performance, and a great sound that is sure to make you smile.

So what is a catback exhaust system anyway? The term "catback exhaust" was coined because of the section of piping that is replaced on the factory exhaust. Generally speaking, the performance exhaust system would upgrade the piping from where your catalytic converter ends.

The new system would replace your exhaust piping, with the muffler, all the way to the tail pipe or rear bumper where the exhaust tips protrude. This upgraded exhaust is what they mean by the famous term, "catback exhaust".

Does a Catback exhaust add HP?

Factory exhaust systems restrict your 2006 Ford Mustang exhaust flow. This hindering of performance is due to the smaller diameter piping and sometimes emissions restrictions. The factory oem exhaust main function is to keep your vehicle as quiet as possible while still maintaining enough usable power. Unfortunately they are also taking away from your engines maximum performance, limiting your peak horsepower and torque.

By upgrading to a performance cat back exhaust system for your 2006 Ford Mustang, you can gain back that lost power with larger diameter exhaust piping. By increasing the pipe diameter you reduce the back pressure and restriction of the exhaust flow.

However, going too large in diameter piping will hinder the engines torque. Unfortunately the moto "bigger is better" does not apply here. Engines also need sufficient back pressure as well in order to create peak power, or torque.

Having the correct sized larger diameter exhaust piping in turn frees up valuable horsepower and torque that was lost by the oem system. This performance boost adds to your overall engines horsepower, or HP.

Does upgrading to a catback exhaust increase performance?

Just like the power increase you saw with upgrading your intake, you can expect an additional 3-5% HP gain from upgrading your exhaust.

On todays modern engines, 3-5% might not seem like much either, but, this can easily be a 15-25HP gain. On turbocharged vehicles, the gain is even higher. If your 2006 Ford Mustang has a turbocharger, we highly recommend making a catback exhaust one of your first modifications.

With turbo engines, exhaust is everything. If you can get the exhaust out faster, the turbo will spool up faster, creating peak boost faster.

Having peak boost come on quicker allows for maximum torque to come in sooner. This also allows the engine to breath easier up top in the higher RPM range making higher peak horsepower.

Either way, with or without a turbo, we highly recommend upgrading your factory exhaust system with a performance catback exhaust.

What kind of piping should a catback exhaust have?

Most exhaust systems these days are built using either mild steel, or the higher end systems use t-304 stainless steel. We do not recommend using any mild steel exhaust systems near ocean water as the salt will cause the system to rust and possibly break over time.

If you do choose a mild exhaust system, we recommend making sure it is at least coated for protection against the elements. However, some manufacturers offer a "Million Mile Warranty" which would be great for a daily driven vehicle.

The other feature a cat back system might have is mandrel bent piping. Most manufacturers today all use mandrel bent piping, so this isn't too much of a concern. If you have ever gone to a local muffler shop, they will use a press bend that stretches and bends the piping to the desired curve.

This is horrible for performance, as some sections of the tubing/piping can vary from over an inch. In order to have maximum performance and exhaust flow, you want your exhaust system to have mandrel bent piping.

Is there a performance muffler?

Generally most aftermarket performance mufflers are not going to make much of a difference on performance. They usually are what determines the final exhaust note and sound your vehicle makes. All performance exhaust manufacturers have different style performance mufflers and styles, so be sure to checkout what you like personally.

We recommend finding some youtube videos and listening to sounds of each system before you purchase. This way you know what to expect with the muffler tone. Some systems can be very quiet, or some extremely loud.

What is the best performance catback exhaust system?

Top performance exhaust manufacturers like such as Magnaflow Exhaust, HKS Exhaust, AWE Exhaust, AFE Exhaust,Corsa Exhaust, Borla Exhaust and many other top manufacturers, will dyno test their systems for peak performance.

They will choose the right combination or muffler, pipe diameter, and material, to bring you a high quality exhaust system, that's going to perform and sound great.

Is a catback Illegal or Void your warranty

In most states, installing a cat back exhaust system should not be illegal. Since they are installed after the catalytic converter, you are not changing any of the emissions system components. However, we urge you to check with your local or state authorities for sound decibel limits, or any specific locality laws that might prevent you modifying your exhaust system.

In addition, installing an upgraded exhaust should NOT void your factory 2006 Ford Mustang warranty. Since most kits are direct replacement, bolt on exhaust kits, you should not have any issues.

However, dealers are famous for denying warranty claims for faulty headlights, because you modified your exhaust. This is obviously a joke, as the components have no relation to each other. That being said, we always recommend checking with your local dealer to ensure you would not have any issues incase of a warranty claim should arise.

Where to buy a Mustang performance exhaust system?

Sport Compact Warehouse is your premier source for catback exhaust systems for your 2006 Ford Mustang. We have a number of exhaust systems to suit everyone’s needs for performance and sound needs.

If you have any questions feel free to reach out to one of our experienced representatives who will help you make a more informative decision. Just give us a call here   (866) 381-4618 and well be happy to help you find the right exhaust the first time.

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KOOKS 11304300
Please Note:

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KOOKS 11304300 Cat Back Exhaust System 3 in. w/Stainless Steel Over The Axle Rear Pipes Incl. Kooks Polished Race Mufflers/4
for 2006 Ford Mustang GT

$1,718.91

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$1,494.70

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Body Style: Convertible, Coupe
Transmission: Automatic, Manual
Drivetrain: RWD
 
2006 Ford Mustang GT equipped with
4.6L V8 Body Style: Convertible, Coupe
Transmission: Automatic, Manual
Drivetrain: RWD
,
CORSA Performance 14311BLK
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CORSA Performance 14311BLK Sport Axle-Back Exhaust System Dual Rear Exit Incl. Muffler/Pipes/Clamps/Single 4in Polished Pro-S
for 2006 Ford Mustang GT

$1,513.32

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$1,315.93

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8 Gas SOHC
 
Convertible 2-Door
 
2006 Ford Mustang GT equipped with
4.6L V8 Gas SOHC Convertible 2-Door
,
CORSA Performance 14311
Please Note:

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CORSA Performance 14311 Sport Axle-Back Exhaust System Dual Rear Exit Incl. Muffler/Pipes/Clamps/Single 4in Polished Pro-Seri
for 2006 Ford Mustang GT

$1,468.34

Save: $191.52
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$1,276.82

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8 Gas SOHC
 
Convertible 2-Door
 
2006 Ford Mustang GT equipped with
4.6L V8 Gas SOHC Convertible 2-Door
,
CORSA Performance 14314BLK
Please Note:

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CORSA Performance 14314BLK Xtreme Axle-Back Exhaust System Dual Rear Exit Incl. Muffler/Pipes/Clamps/4in Polished Pro-Series
for 2006 Ford Mustang GT

$1,458.22

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$1,268.02

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Transmission: Automatic, Manual
Drivetrain: RWD
Body Style: Convertible, Coupe
Engine VIN Code: H
Dual Rear Exit: Dual Rear Exit
2.5 in. Dia.: 2.5 in. Dia.
Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Black PVD Pro-Series Tips: Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Black PVD Pro-Series Tips
50 State Legal / California Emissions Compliant: 50 State Legal / California Emissions Compliant
Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Pro-Series Black Tips: Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Pro-Series Black Tips
 
2006 Ford Mustang GT equipped with
4.6L V8 Transmission: Automatic, Manual
Drivetrain: RWD
Body Style: Convertible, Coupe
Engine VIN Code: H
Dual Rear Exit: Dual Rear Exit
2.5 in. Dia.: 2.5 in. Dia.
Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Black PVD Pro-Series Tips: Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Black PVD Pro-Series Tips
50 State Legal / California Emissions Compliant: 50 State Legal / California Emissions Compliant
Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Pro-Series Black Tips: Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Pro-Series Black Tips
,
CORSA Performance 14314
Please Note:

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CORSA Performance 14314 Xtreme Axle-Back Exhaust System Dual Rear Exit Incl. Muffler/Pipes/Clamps/4in Polished Pro-Series Tip
for 2006 Ford Mustang GT

$1,413.25

Save: $184.34
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$1,228.91

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In Stock - 11 New In Stock
EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Transmission: Automatic, Manual
Drivetrain: RWD
Body Style: Convertible, Coupe
Engine VIN Code: H
Dual Rear Exit: Dual Rear Exit
2.5 in. Dia.: 2.5 in. Dia.
Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Pro-Series Tips: Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Pro-Series Tips
50 State Legal / California Emissions Compliant: 50 State Legal / California Emissions Compliant
 
2006 Ford Mustang GT equipped with
4.6L V8 Transmission: Automatic, Manual
Drivetrain: RWD
Body Style: Convertible, Coupe
Engine VIN Code: H
Dual Rear Exit: Dual Rear Exit
2.5 in. Dia.: 2.5 in. Dia.
Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Pro-Series Tips: Incl. Muffler/Pipes/Clamps/Single 4 in. Polished Pro-Series Tips
50 State Legal / California Emissions Compliant: 50 State Legal / California Emissions Compliant
,
aFe 49-43047
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aFe 49-43047 MACH Force-Xp Cat-Back Exhaust System 2.25in. Incl. Clamps/Muffler/Sectional Tubing/3.5in. Dual Tips 304 Stainle
for 2006 Ford Mustang GT

$1,334.00

Save: $174.00
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$1,160.00

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.0L V6
 
Submodel: BASE
 
2006 Ford Mustang GT equipped with
4.0L V6 Submodel: BASE
,
MAGNAFLOW 16674
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MAGNAFLOW 16674 Competition Series Stainless Cat-Back Exhaust Dual Split Rear Exit
for 2006 Ford Mustang GT

$1,309.85

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$1,139.00

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
Dual Split Rear Exit
3in. Tubing
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
Dual Split Rear Exit
3in. Tubing
,
Borla 140382
Please Note:

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Borla 140382 Cat-Back ATAK Exhaust System 2.5 in. Incl. Connecting Pipes/Mufflers/Hardware/4 in. x 12 in. Long Single Round R
for 2006 Ford Mustang GT

$1,251.19

Save: $163.20
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$1,087.99

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
ATAK Cat-Back Exhaust System
2.5 in.
Incl. Connecting Pipes/Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-Cut Tip
Split Rear Exit
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
ATAK Cat-Back Exhaust System
2.5 in.
Incl. Connecting Pipes/Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-Cut Tip
Split Rear Exit
,
Borla 140135
Please Note:

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Borla 140135 S-Type Cat-Back Exhaust System 2.5 in. Incl. Connecting Pipes/Mufflers/Hardware/4 in. x 12 in. Long Single Round
for 2006 Ford Mustang GT

$1,126.99

Save: $147.00
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$979.99

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In Stock - 2 New In Stock
EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
S-Type Cat-Back Exhaust System
2.5 in.
Incl. Connecting Pipes/Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-Cut Tip
Split Rear Exit
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
S-Type Cat-Back Exhaust System
2.5 in.
Incl. Connecting Pipes/Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-Cut Tip
Split Rear Exit
,
MAGNAFLOW 16605
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MAGNAFLOW 16605 Competition Series Stainless Cat-Back Exhaust Dual Split Rear Exit
for 2006 Ford Mustang GT

$1,033.85

Save: $134.85
Sale Price:

$899.00

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.0L V6
 
Exhaust System Kit
Dual Split Rear Exit
 
2006 Ford Mustang GT equipped with
4.0L V6 Exhaust System Kit
Dual Split Rear Exit
,
Borla 11752
Please Note:

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Borla 11752 Touring Rear Section Exhaust System 2.5 in. Incl. Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle
for 2006 Ford Mustang GT

$926.89

Save: $120.90
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$805.99

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
Touring Axle-Back Exhaust System
2.5 in.
Incl. Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-Cut Tip
Split Rear Exit
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
Touring Axle-Back Exhaust System
2.5 in.
Incl. Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-Cut Tip
Split Rear Exit
,
ROUSH PERFORMANCE PARTS 403936
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ROUSH PERFORMANCE PARTS 403936 Exhaust System Kit
for 2006 Ford Mustang GT

$919.99

Save: $120.00
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$799.99

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EngineFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8 Naturally Aspirated
 
2006 Ford Mustang GT equipped with
4.6L V8 Naturally Aspirated
,
Borla 11806
Please Note:

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Borla 11806 ATAK Rear Section Exhaust 2.5 in. In/Out Incl. Mufflers/Hardware/4 in. Round x 12 in. Long Single Rolled Angle-Cu
for 2006 Ford Mustang GT

$902.74

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$784.99

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In Stock - 7 New In Stock
EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
ATAK Axle-Back Exhaust System
2.5 in. In/Out
Incl. Mufflers/Hardware/4 in. Round x 12 in. Long Single Rolled Angle-Cut Tip
Split Rear Exit
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
ATAK Axle-Back Exhaust System
2.5 in. In/Out
Incl. Mufflers/Hardware/4 in. Round x 12 in. Long Single Rolled Angle-Cut Tip
Split Rear Exit
,
MAGNAFLOW 16793
Please Note:

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MAGNAFLOW 16793 Competition Series Stainless Axle-Back Exhaust Dual Split Rear Exit
for 2006 Ford Mustang GT

$845.25

Save: $110.25
Sale Price:

$735.00

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In Stock - 1 New In Stock
EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
Dual Split Rear Exit
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
Dual Split Rear Exit
,
MAGNAFLOW 16843
Please Note:

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MAGNAFLOW 16843 Race Series Stainless Axle-Back Exhaust Dual Split Rear Exit
for 2006 Ford Mustang GT

$756.64

Save: $98.69
Sale Price:

$657.95

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
Dual Split Rear Exit
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
Dual Split Rear Exit
,
ROUSH PERFORMANCE PARTS 421915
Please Note:

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ROUSH PERFORMANCE PARTS 421915 Exhaust System Kit
for 2006 Ford Mustang GT

$747.49

Save: $97.50
Sale Price:

$649.99

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EngineFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8 Naturally Aspirated
 
2006 Ford Mustang GT equipped with
4.6L V8 Naturally Aspirated
,
Borla 11750
Please Note:

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Borla 11750 S-Type Rear Section Exhaust System 2.5 in. Incl. Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-
for 2006 Ford Mustang GT

$715.29

Save: $93.30
Sale Price:

$621.99

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In Stock - 4 New In Stock
EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
S-Type Axle-Back Exhaust System
2.5 in.
Incl. Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-Cut Tip
Split Rear Exit
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
S-Type Axle-Back Exhaust System
2.5 in.
Incl. Mufflers/Hardware/4 in. x 12 in. Long Single Round Rolled Angle-Cut Tip
Split Rear Exit
,
MBRP S7270409
Please Note:

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MBRP S7270409 XP Series Cat Back Exhaust Race Version Dual Split Rear Exit w/ 4in OD Tip
for 2006 Ford Mustang GT

$707.24

Save: $92.25
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$614.99

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
3 in.
Incl. Ext. Pipes/Mufflers/Hardware/4 in. Outlet Diameter Tips
Dual Split Rear Exit
Race Version
T409 Stainless Steel
Intended For Race Use Only
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
3 in.
Incl. Ext. Pipes/Mufflers/Hardware/4 in. Outlet Diameter Tips
Dual Split Rear Exit
Race Version
T409 Stainless Steel
Intended For Race Use Only
,
FLOWMASTER 17410
Please Note:

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FLOWMASTER 17410 Force II Series AxleBack System Dual Rear Exit Moderate Sound
for 2006 Ford Mustang GT

$707.19

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$614.95

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
Dual
Dual Rear Exit
Incl. 5 in. x 10 in. Mufflers/4 in. Logo Embossed Stainless Tips
50 State Legal / California Emissions Compliant
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
Dual
Dual Rear Exit
Incl. 5 in. x 10 in. Mufflers/4 in. Logo Embossed Stainless Tips
50 State Legal / California Emissions Compliant
,
FLOWMASTER 817511
Please Note:

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FLOWMASTER 817511 Outlaw Series AxleBack System Dual Rear Exit Aggressive Sound
for 2006 Ford Mustang GT

$684.19

Save: $89.24
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$594.95

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
Dual
Dual Rear Exit
Incl. 3.0 in. Tubing/Outlaw(TM) Mufflers/4.0 in. Polished Stainless Tips
409 Stainless Steel
50 State Legal / California Emissions Compliant
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
Dual
Dual Rear Exit
Incl. 3.0 in. Tubing/Outlaw(TM) Mufflers/4.0 in. Polished Stainless Tips
409 Stainless Steel
50 State Legal / California Emissions Compliant
,
FLOWMASTER 817460
Please Note:

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FLOWMASTER 817460 American Thunder Series AxleBack System Dual Rear Exit Aggressive Sound
for 2006 Ford Mustang GT

$676.14

Save: $88.19
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$587.95

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In Stock - 7 New In Stock
EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
Single
Dual Rear Exit
Incl. 40 Series(TM) Mufflers/4 in. Logo Embossed Stainless Tips
409 Stainless Steel
50 State Legal / California Emissions Compliant
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
Single
Dual Rear Exit
Incl. 40 Series(TM) Mufflers/4 in. Logo Embossed Stainless Tips
409 Stainless Steel
50 State Legal / California Emissions Compliant
,
MAGNAFLOW 15889
Please Note:

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MAGNAFLOW 15889 Street Series Stainless Axle-Back Exhaust Single Straight Passenger Side Rear Exit
for 2006 Ford Mustang GT

$596.67

Save: $77.83
Sale Price:

$518.84

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.0L V6
 
Exhaust System Kit
Single Straight Passenger Side Rear Exit
 
2006 Ford Mustang GT equipped with
4.0L V6 Exhaust System Kit
Single Straight Passenger Side Rear Exit
,
MBRP S7270AL
Please Note:

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MBRP S7270AL Installer Series Cat Back Exhaust Race Version Dual Split Rear Exit w/ 4in OD Tip
for 2006 Ford Mustang GT

$546.24

Save: $71.25
Sale Price:

$474.99

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
3 in.
Incl. Ext. Pipes/Mufflers/Hardware/4 in. Outlet Diameter Tips
Dual Split Rear Exit
Race Version
Aluminized
Intended For Race Use Only
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
3 in.
Incl. Ext. Pipes/Mufflers/Hardware/4 in. Outlet Diameter Tips
Dual Split Rear Exit
Race Version
Aluminized
Intended For Race Use Only
,
MBRP S7200304
Please Note:

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MBRP S7200304 Pro Series Dual Mufflers Axle Back Exhaust Split Rear Exit w/ 3in OD Tip
for 2006 Ford Mustang GT

$540.49

Save: $70.50
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$469.99

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.6L V8
 
Exhaust System Kit
2.5 in.
Incl. Dual Mufflers/Hardware/4 in. Outlet Diameter Tips
Dual Split Rear Exit
T304 Stainless Steel
 
2006 Ford Mustang GT equipped with
4.6L V8 Exhaust System Kit
2.5 in.
Incl. Dual Mufflers/Hardware/4 in. Outlet Diameter Tips
Dual Split Rear Exit
T304 Stainless Steel
,
Borla 11751
Please Note:

Some images might not represent the actual product

Borla 11751 Rear Section Exhaust System 2.5 in. Incl. Mufflers/Hardware/4 in. Round x 12 in. Long Single Rolled Angle-Cut Tip
for 2006 Ford Mustang GT

$524.39

Save: $68.40
Sale Price:

$455.99

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EngineFit NotesFitment Notes
2006 Ford Mustang GT equipped with
4.0L V6
 
Exhaust System Kit
 
2006 Ford Mustang GT equipped with
4.0L V6 Exhaust System Kit