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Cat-Back Exhaust for 2008-10 WRX Hatchback


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Was: $920.00
Sale: $828.00
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Save: $92.00


2008-2010 Subaru WRX Hatchback Cat-Back Exhaust

Get your entire exhaust system ordered with just one item! Save money too! Check out the specs below on this powerful Cat-Back.

4" Slash Cut Tip

An over-sized 4" slash cut exhaust tip adds an aggressive look to this impressive system. PERRIN exhaust tips are a brushed stainless steel, single wall construction and will not discolor with extreme heat.

Straight Through Muffler

PERRIN Performance mufflers have a true 3" internal diameter for uninterrupted exhaust flow. PERRIN mufflers and flange connections are 3" throughout the entire length, not necked down, for ultra smooth transitions throughout the system.

304SS Tubing

PERRIN Performance exhaust systems are made entirely of 304 stainless steel. 304SS provides high corrosion resistance and is excellent for heat up to 1800 degrees Fahrenheit. Other manufactures may use cheaper 409 stainless steel which will rust and corrode over time but the added expense of 304 stainless steel is well worth the beautiful and long lasting finish and durability.


PERRIN performance exhaust systems feature high tech v-band clamps for a perfect exhaust connection. V-band clamps are designed to hold hundreds of pounds of pressure and do so without the need for a gasket! This connection allows for a precise, repeatable joint with the ability to rotate each joining connection. This allows for easy installation and alignment adjustments for a perfect fit every time.


The PERRIN exhaust system comes in a brushed stainless steel finish.

Sound Clip

It is very important to us for our exhaust to make power, but sound level and tone should also be a concern. Our system is designed to have a low and pleasing rumble while not producing the loud, rough drone that wakes your neighbors!
» Listen to the clip

Installed Photos

Click on the photo to the left to view a slideshow of this part and other like parts installed.

Lifetime Warranty

PERRIN Performance warrants to the original purchaser, all PERRIN cat-back exhaust systems to be free from defects in material and workmanship.*Some exclusions apply
» Read Full Warranty


Warranty Details

This product features a lifetime warranty Read Full Warranty

Tech Department




Product Weight 38.5 lbs.
Material 304 Stainless Steel

In The Box

In The Box

(1) PERRIN 2008-2010 WRX Hatch Muffler
(1) PERRIN 2008-2010 WRX Hatch Midpipe
(1) PERRIN 2008-2010 WRX Hatch S-Pipe
All necessary hardware
(1) PERRIN License Plate Frame

Dyno Charts

Dyno Charts

Proven Horse Power

2.5L WRX Cat-back Test

This was done on our 08 WRX running a Stage 1 AccessPORT tune; this represents exactly what we see for WHP changes on all the WRX models after installing the cat-back exhaust. The 5-8 WHP gains we see are typical on both the 2.5L and 2.0L WRX after installing our 3" cat-back exhaust.

Dyno Chart

2008 WRX Turbo Back Exhaust Test

This was done on our 08 WRX running a Stage 1 AccessPORT tune, this represents exactly what we see for WHP changes on all the WRX models after installing the Cat-back Exhaust with aftermarket high-flow downpipe. The gains we see of about 15-20WHP is very typical on both the 2.5L and 2.0L WRX's after installing our 3" Catback exhaust with an aftermarket high-flow downpipe.

Compatibility Notes


2008-2010 WRX Hatchback Yes
2008-2010 WRX Sedan No, here.
2008-2010 STI No, here.


Shipping Information

  • Item Requires Shipping
  • 79.0 lbs.
  • W11.0000” x H25.0000” x L57.0000”
  • This item ships in its own box.