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Axleback Exhaust - 2015-2018 WRX/STi

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  • Muffler Delete with 4" Staggered Double Wall Tips
  • Muffler Delete with 3.5" Staggered Single Wall Tips
  • Muffler Delete with 3.5" Staggered Double Wall Tips
  • Muffler Delete with 3" Staggered Double Wall Tips
  • Muffler Delete with 3.5" Double Wall Tips
  • Muffler Delete with 3.5" Non-Staggered Single Wall Tips
  • Image 7
Nameless Performance
467 product reviews
Calculated at checkout

 Product Description

Designed for the VA Chassis (2015-2018) Subaru WRX and STi Sedans, the Nameless Performance AxleBack Exhaust is a direct factory fit to the OEM midpipe at the Y. Removing the two factory 13.5lb restrictive baffled mufflers in lieu of a pair of mandrel bent, TIG welded, T304 stainless steel pipes and configurable tailpipe tip style, this system is easily configurable to your desired look and sound level.

Factory fit laser cut flanges and 2″ dual piping has equivalent flow characteristics of a 3" single straight pipe, providing excellent breathing characteristics for high end horsepower and generating an increase in low end torque (roughly 10hp/11ft lb at the wheels for this and the other muffled axleback options we offer).

Fits 2015-2018 WRX & STi Sedans with OEM or OEM fitment (Nameless Performance) midpipe, not compatible with the STI (SPT) dealer installed midpipe.

Each axleback comes with a full hardware kit for installation.

Configuration Options:


  • Muffler Delete: The loudest option. Removes the mufflers entirely. This is a 10 on a scale where stock = 0
  • 4" Mufflers: Similar to the deletes, but with the edge taken off. This is a 7 on a scale where stock = 0
  • 5" Mufflers: Our most quiet option. Perfect for those looking for a subtle upgrade. This is a 5 on a scale where stock = 0


  • 3" Quad Staggered Double Wall: These are T304 stainless, double wall polished tips that fit perfectly into the cutout in the rear valence of the vehicle. 10 Degree Angle Cut with staggered arrangement (inboard tips stick out 1/2" further than outboard tips). 3″ diameter per tip, very close to an OEM look
  • 3" Neochrome Quad Staggered Double Wall: These blue flame/burnt tips fit perfectly into the cutout in the rear valence of the vehicle. 3" tip with a 10 Degree Angle Cut with staggered arrangement (inboard tips stick out 1/2″ further than outboard tips). These tips are only available with the Muffler Delete.
  • 3.5" Quad Staggered Single Wall: Single Wall Quad Tips in 3.5" diameter w/ 20 degree angle cut with a 1/2" staggered arrangement.
  • 3.5" Quad Non-Staggered Single Wall: Same as above but non-staggered.
  • 4" Quad Staggered Double Wall: Double wall 4" diameter quad tips, 1/2" staggered arrangement, 10 degree slash cut.
  • 3.5" Quad Staggered Double Wall: Double Wall 3.5" diameter quad tips, 1/2" staggered arrangement, straight cut, brushed finish.

Questions about tip style? View Tip Option Details

Installation Instructions:

Installation Guide - Axleback/Catback/Midpipe

Recommended Add-Ons:

Urethane Exhaust Hanger Bushings

Our urethane bushings hold your exhaust in place better that the factory rubber bushings and are highly recommended if you race your car or enjoy spirited driving. During hard cornering the exhaust "wags" left to right which sometimes causes the tips to touch the bumper. When this happens there is a chance your bumper can be damaged. The best way to avoid this is to use our urethane exhaust bushings to hold the exhaust in place.

  • 2 Bushings: Replace the two bushings at the rear of the car closest to the bumper. Recommend for those who either drive hard on the street or race occasionally at the track.

  • 4 Bushings: Replace all 4 rubber bushings on the axleback portion of the exhaust. Recommended for people who race their cars often.

  • 5 Bushings: Replace all 5 of the factory rubber bushings from the midpipe back. Recommended for those who are hard core autocrossers or circuit racers.

 Product Reviews

Showing reviews 1-8 of 467 | Next

  1. Easy install, great sound

    Posted by on

    Brings stock WRX to life; not too loud but you can make it roar if necessary. Very well made exhaust, 25 min install.

  2. WOW!!

    Posted by on


  3. Fast Shipping, well made, awesome sound, easy install

    Posted by on

    Got the axleback muffler delete with 3inch for my stock 2018 CVT. Easy to install. All parts were given. Welds were good. Shipping was way faster than I expected and I got to install it the same day. Pieces were packed good. No jackstand required with stock height. (Tip, if you have a sloping driveway and garage, park inside garage with rear bumper on outside edge of garage where it starts to slope for additional room.) First time having a sports car/compact sports car, and first time having an exhaust that makes sounds. Glad I purchased directly through Nameless. Also when chatting with a rep online, I got response extremely fast. I haven't driven long distances yet, but based on my short 4 mile drive, there is no drone, has low rumble, and makes sound when I step on it so it isn't obnoxious. But even on low acceleration it makes good sound. Cold starts are loud but it quiets down once warmed up. The 3inch tips do leave some empty space, but it isnt really noticeable when looking at it when standing. Perfect for my needs as a daily driver as it is a CVT and I dont plan on doing anything crazy in terms of mods. 4inch would be better for those who care about appearances.

  4. Enough low rumble without the drone.

    Posted by on

    Installed on a ‘18 WRX with stock downpipe and STI midpipe. Cold starts are loud, but the sound is barely noticeable once warmed up. During normal cruising, the exhaust sound is noticeable, but not obnoxiously loud. But once you get on it, you’ll definitely notice a difference. Haven’t noticed any droning at all regardless of sitting as driver or rear passenger.

    Also installed this on my buddies ‘15 WRX with stock downpipe and midpipe. Sound is the same, but a tad bit quieter whether at cold start, normal cruising, or spirited driving.

  5. Best upgrade on my 2018 WRX

    Posted by on

    Ok first of all I’m in my 30’s with kids and I have searched YouTube and forums for weeks trying to decide what axleback exhaust to buy. Every time I just kept coming back to Nameless. I really thought about going with the 4 inch muffler because I was afraid the delete would be too loud for “Dad’s car” Finally just made the decision on the muffler delete version with 3in tips and WOW! This car sound alive now! You can really control the sound making it quiet or loud when you want to. Has a nice little rumble at idle that sounds mean and some nice pops here and there. I also believe it makes shifting 1st and 2nd gears easier because you can hear the car better. Super happy with my purchase and the quality of the parts I received. 5 stars

  6. Perfection

    Posted by on

    I am a middle-aged guy, 2017 WRX Sport Tech. Wanted to spice it up a bit, without tuning it like I might have if I was 20. Got the 4" with 3.5" DW staggered tips. Awesome. Looks great - way better than stock without being too much (again, I don't wear flat brim ball caps, see above). Sounds is amazing. Stock was so quiet and boring. Now it's burbling, crackling, loud (but not insane) and beautiful. Booyah!

  7. Amazing

    Posted by on

    This product sounds wonderful. Gives you that extra sound a wrx should have but sadly didn’t come stock with. Thanks to nameless performance and a few hundred bucks the car sounds great and has a little performance boost to go alone with it. A little expensive but compared to the big name exhaust systems out there it’s right in line and sounds better. Tyler helped me pick out the best fit for me. He’s awesome

  8. Sounds Meaty

    Posted by on

    Installed this axleback within <45mins! Super easy.
    My 2015 STi now sounds like a Subaru-Loud, Rumble and getting some nice backfire from dropping down from high speed. Only con I have about this is that since installing it my fuel usage has sky rocketed because I can’t stay off the loud pedal!
    Super happy customer from down under!!

Showing reviews 1-8 of 467 | Next

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