Catback Exhaust Systems


Just like installing a Cold Air Intake, upgrading the factory 4Runner stock oem exhaust with a catback exhaust is your next basic performance modification for your 2011 Toyota 4Runner. 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 2011 Toyota 4Runner 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 2011 Toyota 4Runner, 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 2011 Toyota 4Runner 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 2011 Toyota 4Runner 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 4Runner performance exhaust system?

Sport Compact Warehouse is your premier source for catback exhaust systems for your 2011 Toyota 4Runner. 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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MAGNAFLOW 15145
Please Note:

Some images might not represent the actual product

MAGNAFLOW 15145 MF Series Stainless Cat-Back Exhaust Single Straight Passenger Side Rear Exit
for 2011 Toyota 4Runner TRAIL

$1,157.69

Save: $151.00
Sale Price:

$1,006.69

Estimated Ship Date: Today

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In Stock - 3 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
Exhaust System Kit
Single Straight Passenger Side Rear Exit
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 Exhaust System Kit
Single Straight Passenger Side Rear Exit
,
MAGNAFLOW 19546
Please Note:

Some images might not represent the actual product

MAGNAFLOW 19546 Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$938.40

Save: $122.40
Sale Price:

$816.00

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 3 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
Single Passenger Side Rear Exit
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 Single Passenger Side Rear Exit
,
Borla 140379
Please Note:

Some images might not represent the actual product

Borla 140379 Touring Cat-Back Exhaust System 2.25 in. Incl. Connecting Pipes/Mufflers/Hardware/3.2 in. Single Oval Rolled Ang
for 2011 Toyota 4Runner TRAIL

$919.99

Save: $120.00
Sale Price:

$799.99

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 3 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
Exhaust System Kit
Touring Cat-Back Exhaust System
2.5 in.
Incl. Connecting Pipes/Mufflers/Hardware/3.2 in. Single Oval Rolled Angle-Cut Tip
Rear Exit
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 Exhaust System Kit
Touring Cat-Back Exhaust System
2.5 in.
Incl. Connecting Pipes/Mufflers/Hardware/3.2 in. Single Oval Rolled Angle-Cut Tip
Rear Exit
,
GIBSON EXHAUST 618816B
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GIBSON EXHAUST 618816B Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$724.34

Save: $94.48
Sale Price:

$629.86

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 8 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
Stainless
2.5in. Tubing
6in. Rd Body
2.5in. Offset In/2.5 in. Offset Outlet
L-24 in.
Exits Behind Rear Tire
50 State Legal / California Emissions Compliant
Will Not Fit The Limited Model
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 Stainless
2.5in. Tubing
6in. Rd Body
2.5in. Offset In/2.5 in. Offset Outlet
L-24 in.
Exits Behind Rear Tire
50 State Legal / California Emissions Compliant
Will Not Fit The Limited Model
,
GIBSON EXHAUST 618816
Please Note:

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GIBSON EXHAUST 618816 Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$658.67

Save: $85.91
Sale Price:

$572.76

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 7 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
Stainless
2.5in. Tubing
2.5 in. Offset In/Outlet
4in. Dual Polished T304 Stainless Rolled Slash-Cut Tip
Exit Straight Out The Back
50 State Legal / California Emissions Compliant
Will Not Fit The Limited Model
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 Stainless
2.5in. Tubing
2.5 in. Offset In/Outlet
4in. Dual Polished T304 Stainless Rolled Slash-Cut Tip
Exit Straight Out The Back
50 State Legal / California Emissions Compliant
Will Not Fit The Limited Model
,
MBRP S5343304
Please Note:

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MBRP S5343304 Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$638.24

Save: $83.25
Sale Price:

$554.99

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 1 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
2.5in.
Incl. Front Pipe/ Muffler/ Over-Axle Pipe/ Tail Pipe/ Hardware
Single Rear Exit
High Clearance
T304 Stainless Steel.
Wheelbase (in): 109.80
Wheelbase (cm): 278.90
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 2.5in.
Incl. Front Pipe/ Muffler/ Over-Axle Pipe/ Tail Pipe/ Hardware
Single Rear Exit
High Clearance
T304 Stainless Steel.
Wheelbase (in): 109.80
Wheelbase (cm): 278.90
,
FLOWMASTER 717805
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FLOWMASTER 717805 Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$603.39

Save: $78.70
Sale Price:

$524.69

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 3 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
L
 
Single Exit
Incl. 3.5 in. Tubing/Straight Through Mufflers
3.5 in. Black Ceramic Tip
409 Stainless Steel
50 State Legal / California Emissions Compliant
 
2011 Toyota 4Runner TRAIL equipped with
L Single Exit
Incl. 3.5 in. Tubing/Straight Through Mufflers
3.5 in. Black Ceramic Tip
409 Stainless Steel
50 State Legal / California Emissions Compliant
,
GIBSON EXHAUST 618815B
Please Note:

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GIBSON EXHAUST 618815B Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$572.09

Save: $74.62
Sale Price:

$497.47

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 2 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
Stainless
2.5in. Tubing
6in. Rd Body
2.5in. Offset In/Outlet
4in. Black Ceramic Rolled Slash-Cut Tip
Exits Straight Out Back
50 State Legal / California Emissions Compliant
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 Stainless
2.5in. Tubing
6in. Rd Body
2.5in. Offset In/Outlet
4in. Black Ceramic Rolled Slash-Cut Tip
Exits Straight Out Back
50 State Legal / California Emissions Compliant
,
GIBSON EXHAUST 618815
Please Note:

Some images might not represent the actual product

GIBSON EXHAUST 618815 Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$555.47

Save: $72.45
Sale Price:

$483.02

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 1 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
Stainless
2.5 in. Tubing
2.5 in. Offset In/Outlet
L-24in.
4 in. Polished T304 Stainless Rolled Slash-Cut Tip
Exit Straight Out The Back
50 State Legal / California Emissions Compliant
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 Stainless
2.5 in. Tubing
2.5 in. Offset In/Outlet
L-24in.
4 in. Polished T304 Stainless Rolled Slash-Cut Tip
Exit Straight Out The Back
50 State Legal / California Emissions Compliant
,
FLOWMASTER 817961
Please Note:

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FLOWMASTER 817961 Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$486.65

Save: $63.48
Sale Price:

$423.17

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 4 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
L
 
Dump Style Exit
Incl. 3 in. Tubing/Outlaw Muffler
409 Stainless Steel
Incl. Installation Hardware
50 State Legal / California Emissions Compliant
 
2011 Toyota 4Runner TRAIL equipped with
L Dump Style Exit
Incl. 3 in. Tubing/Outlaw Muffler
409 Stainless Steel
Incl. Installation Hardware
50 State Legal / California Emissions Compliant
,
GIBSON EXHAUST 18815
Please Note:

Some images might not represent the actual product

GIBSON EXHAUST 18815 Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$451.57

Save: $58.90
Sale Price:

$392.67

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 5 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
Aluminized
2.5 in. Tubing
2.5 in. Offset In/Outlet
L-24in.
4 in. Polished T304 Stainless Rolled Slash-Cut Tip
Exit Straight Out The Back
50 State Legal / California Emissions Compliant
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 Aluminized
2.5 in. Tubing
2.5 in. Offset In/Outlet
L-24in.
4 in. Polished T304 Stainless Rolled Slash-Cut Tip
Exit Straight Out The Back
50 State Legal / California Emissions Compliant
,
FLOWMASTER 717972
Please Note:

Some images might not represent the actual product

FLOWMASTER 717972 Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$443.33

Save: $57.83
Sale Price:

$385.50

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 1 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
L
 
3 in. Tubing
Single Dump Style Exit
409 Stainless Steel
Incl. Installation Hardware
50 State Legal / California Emissions Compliant
 
2011 Toyota 4Runner TRAIL equipped with
L 3 in. Tubing
Single Dump Style Exit
409 Stainless Steel
Incl. Installation Hardware
50 State Legal / California Emissions Compliant
,
MBRP S5342AL
Please Note:

Some images might not represent the actual product

MBRP S5342AL Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$402.49

Save: $52.50
Sale Price:

$349.99

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 3 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
2.5in.
Incl. Front Pipe/Muffler/Over-axle Pipe/Tailpipe/Hardware/4in. Angled Dual Wall Tip.
Single Side Rear Exit
Aluminized Steel
Wheelbase (in): 109.80
Wheelbase (cm): 278.90
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 2.5in.
Incl. Front Pipe/Muffler/Over-axle Pipe/Tailpipe/Hardware/4in. Angled Dual Wall Tip.
Single Side Rear Exit
Aluminized Steel
Wheelbase (in): 109.80
Wheelbase (cm): 278.90
,
MBRP S5343AL
Please Note:

Some images might not represent the actual product

MBRP S5343AL Exhaust System Kit
for 2011 Toyota 4Runner TRAIL

$396.74

Save: $51.75
Sale Price:

$344.99

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 8 New In Stock
EngineFit NotesFitment Notes
2011 Toyota 4Runner TRAIL equipped with
4.0L V6
 
2.5in.
Incl. Front Pipe/ Muffler/ Over-Axle Pipe/ Tail Pipe/ Hardware
Single Rear Exit
High Clearance
Aluminized Steel.
Wheelbase (in): 109.80
Wheelbase (cm): 278.90
 
2011 Toyota 4Runner TRAIL equipped with
4.0L V6 2.5in.
Incl. Front Pipe/ Muffler/ Over-Axle Pipe/ Tail Pipe/ Hardware
Single Rear Exit
High Clearance
Aluminized Steel.
Wheelbase (in): 109.80
Wheelbase (cm): 278.90