27WON Exhaust | 22+ Civic Sedan

We spent a lot of time dialing in the perfect setup for the 11th Generation EX and Touring trims of the Civic. From factory, the stock exhausts systems are quiet! No, like really quiet! You can't even hear your exhaust.

After countless hours of tweaking and tuning for the optimal sound, we settled on two unique options:

• Non-Resonated: For those wanting just a front-pipe back or cat-back system. Just the right amount of growl and the sweet-spot if you intend on keeping your downpipe stock
• Resonated: For those who opt for a downpipe on their car and grab a full turbo-back system. The extra resonator helps keep NVH (Noise, Vibration, Harshness) at a comfortable level when paired with a downpipe upgrade

Let's talk about this unique looking design out back. What you're looking at here are two Helmholtz resonators. They are tuned for a crisp deep tone while eliminating as much drone as possible. As exhaust air moves past these additional air chambers or "dead tubes" as we sometimes call them, it gets pulled in and then pushed back out. This creates a unique throaty exhaust note not found on other systems. We specifically tuned this exhaust for the 1.5T with CVT in your Honda Civic Sedan.

Every system we offer for the EX and Touring Honda Civic has this unique feature.

The tips we mean. We know the rear bumper on the non-Si versions of the Civic are unique. We opted to remain true to the Honda design here and keep the clean look going that doesn't give too much away. No need for replacement bumper shrouds with this exhaust. This exhaust will fit your stock bumper without any modifications needed.

• Upgrading the exhaust on a CVT equipped car releases lots of NVH. We've worked hard to tune this out of our system. We believe most people that drive CVT equipped cars want a more refined exhaust system. So if want to run a downpipe, then get the 'resonated' turbo-back system.
  
  If you just want a nice looking exhaust that sounds cool and are not looking for crazy sound then get either of the front-pipe or cat-back "non-resonated" system

• We do not offer the "resonated" exhaust system for the front pipe or cat-back system because it will be too quiet for most people, you almost can't hear it. We don't offer a "non-resonated" system for those opting for a full turbo-back with downpipe as it will be too much NVH for most people. If you want to get it just right, we're always here to point you in the right direction so reach out before ordering

All 27WON exhaust systems are made from T304 stainless steel tubing that is precision CNC mandrel bent and then TIG welded for durability and strength. We then apply a slick brushed finish for an exhaust that will look sweet and require no maintenance at all for the life of your car. We couldn't make this choice any easier for you!

We've said time and time again, other exhausts on the market compromise where it matters the most. Take for example the connection points. Ever notice how other exhausts use "slip-joints" or 2-bolt flanges? Those are a pain to install, are prone to leaks and only benefit the manufacturer because they are cheap! This is why our system comes with stout 3-bolt flanges. This method of manufacturing is optimal for both sealing and perfect alignment during install.

Just like on our popular 11th Gen Si exhaust system, for this EX and Touring system we maximize exhaust flow by upping the piping diameter from ~50mm up to 63.5mm (a full 2.5"). This reduces back pressure and makes it easier for hot exhaust gases to leave your turbocharger. The resulting increase in cross-sectional area can easily support maximum power gains provided by popular bolt-on modifications and or even a larger 27WON turbochargers (coming soon!)

We've been there and we know no one wants a tedious project on their hands adjusting and tweaking an exhaust over and over so we spent the time dialing in the optimal hanger locations and flange orientations to ensure perfect fitment the first time and it does not require the modification of any OEM parts.