Axleback Exhaust - 2024+ Crosstrek - Quad Exit 2.5L Dual Chamber

Quad Exit Dual Chamber Exhaust for the '24 Crosstrek 2.5l Sport & Limited:  Reduce the drone without minimizing the great exhaust note.  

For years we have had requests to develop a quad exit exhaust featuring our drone cancelling Helmholtz resonator.  The wait is over with these new quad exit exhausts for the 2024 Crosstrek.  Tuned specifically for the FB25 engine to cancel drone at cruise and high load / low rpm driving, this system is the best of both worlds.

This version features polished 3” staggered double wall quad exhaust tips, tucked perfectly into the bumper features on the 2024+ Crosstrek.  

So what is our dual chamber exhaust all about?  

Ever wish you could have an exhaust that was quiet when you want quiet, yet aggressive when you want aggressive? Wish no more! This system offers the same crisp exhaust notes that our 5" muffled systems on the outside of the vehicle, while reducing cabin noise in the low RPM ranges. literally the best of both worlds - ultra mild at cruise inside the car, and an appropriate growl inside and outside when you feel like doing some "spirited driving". 

Featuring both a 5" conventional "zero-restriction muffler" and a frequency tuned “Helmholtz" resonator, this gives a warm exhaust note outside the car while cancelling the specific drone frequencies that occur at cruise and low rpm load (hill climbing, etc). 

Want to know more about the science behind this design?  Check out our our blog article, "Calculating The Perfect Exhaust Note." Don't care about the science and just want the results? Visit our YouTube page or click the video below to hear how it sounds!

 "New helmholtz exhaust designed by @namelessperformance received and installed. Impressive build, quality, and sound... and most importantly for my wife, absolutely no drone in the cabin. Nameless hit a home run with this one. Thank you!" was what our first customer had to say about this after driving the 5" muffler and wanting to have less cabin noise.  

Featuring factory fit laser cut flanges and 2.25" piping that provides excellent breathing characteristics for high end horsepower and torque while retaining the appropriate frequency to reduce in-cabin drone and keeping excellent sound outside the car.

Fits 2024+ Crosstrek with OEM or OEM fitment mid pipe. Will not fit the older models.  Will not work properly with 2.0L models.  We have a specific design that targets the drone frequency from those engines that is available separately from this system that is designed for the 2.5L. 

Each axle back exhaust system comes with a full hardware kit and new gasket.

Recommended Add-Ons:

Exhaust Hanger Bushings

Upgrading to our long lasting Nameless Performance urethane exhaust bushings from the factory rubber bushings is highly recommended. The softer rubber factory bushings have too much flex and if you race your car or enjoy spirited driving the exhaust "wags" left to right which sometimes causes noise or the tips to touch the rear bumper on Crosstrek and Impreza applications. When this happens there is a chance your bumper can be damage or if you have a hitch or any other accessories can cause annoying sounds. The best way to avoid this is to use our urethane exhaust bushings to hold the exhaust in place. These upgraded bushings are not necessary to install our exhaust systems but for the small cost of upgraded units, it is an excellent idea! prevents common exhaust sag issues.

• 3 Bushings: Replace 3 rubber bushings on the axleback portion of the exhaust.
  
  
• 4 Bushings: Replace 3 rubber bushings on the axleback portion of the exhaust as well as the single bushing on the midpipe.

Exhaust Hanger Bushing Removal Tool

This tool makes removing the hanger bushings a breeze. We highly recommend this tool, it turns the removal process from frustrating to satisfying.

• Easily remove hanger bushings
• High Quality Steel Construction