FactionFab Axle Back Exhaust

2015-2021 Subaru WRX 2015-2018 Subaru STI

$390.00 - $430.00

SKU: 1.10204.2-FFA1.10204.1-PARENTWe price match!


Every Subaru needs more rumble and Faction Fab has the answer! The axle back can be installed in a matter of minutes, and unlock the sound and style you are looking for.
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FactionFab Axle Back Exhaust

Every Subaru needs more rumble and Faction Fab has the answer! This is a quick and easy way to increase the performance, looks, and sound of your vehicle. These are direct replacements for the heavy and aesthetically unpleasing stock mufflers with muffler deletes. Installation can be performed in a matter of minutes using simple hand tools.

  • 100% made in the USA
  • 304 stainless steel construction
  • Thick laser cut 3/8" flanges
  • Sturdy 1/2" hangers
  • TIG welded by hand
  • Twin wall polished 3.5" tips
  • Over 6lbs lighter per side over stock
  • Direct OE replacement for factory mufflers (not compatible with SPT system)
  • Includes brand new hardware, OE gaskets, and anti-seize
FactionFab Axle Back Exhaust

FactionFab Axle Back Exhaust

The Faction Fab OEM replacement axle-back systems are specifically designed for the VA 2015 - 2020 WRX and 2015 - 2018 STI with stock or direct stock replacement mid-pipes. These systems are 100% made in the USA, using American sourced tubing for best quality and manufacturing methods. The systems are made from mandrel bent 16 gauge 304 stainless steel, 3/8" thick laser cut flanges and sturdy 1/2" hangers. All components are meticulously TIG welded by hand to perfection for a long and reliable service life. To finish it off, the systems use slip-on exhaust tips, allowing you to fine tune the position of the tips relation to the bumper.

2 customer reviews

Average rating
(based on 2 reviews)
Ease of Installation
Fit / Quality
Overall Satisfaction
  1. Does what it's supposed to do..but

    By Josh November 17, 2021

    The installation was very easy, the only hard parts were getting the factory bolts loose and the mufflers off their hangers, but other than that the process was quick and easy. One issue that I have is that for me, the left side hangs slightly lower than the right, and since the tips aren't welded on they tend to rotate a bit after driving for a while. Other than that, I'm very happy with how it looks and sounds.

  2. EXCELLENT Fit and finish! Great Customer Service

    By AirWolfe81 December 8, 2020

    First of all, these shipped out super quick, even though they were on back order. When I openend the box I found 2 left side tips. FactionFab quickly responded to me and shipped the correct part to me that same day!!! Excellent Customer service. As for the install, it was a breeze and fit EXACTLY. No need for adjustments or anything. Fit like a glove. The sound is awesome as well. I would recommend these to anyone!!

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