After installing the ZARD Slip-Ons “Avio” Exhaust on my 2021 Softail Standard, I’m completely blown away. The fit and finish are top-tier—crafted from AISI 304 stainless steel, with that tapered conical design, exposed MIG welds, and the signature Avio end caps that instantly elevate the bike’s visual appeal
I opted for the racing version, and the weight reduction is noticeable—about 4 kg lighter than the OEM exhaust, which translates into noticeably sharper handling and easier acceleration
Plus, there’s a verifiable bump in power—+1.5 hp, which may sound modest, but it’s enough to deliver that satisfying punch every time you twist the throttle
Installing them was hassle-free with clear instructions and perfect alignment. Once on, the sound does something magical: a robust rumble that’s impossibly Harley—deep, lively, authoritative—yet not overdone. It’s just the right amount of growl to let everyone know you’re coming, without overwhelming the ride.

I also went with the matte black Cerakote® finish, and I’ve got to say—it stays fresh-looking even after multiple rides and days out. The coating’s durability up to 1000 °C gives me peace of mind
On the road, the gains in throttle response and performance are tangible. The bike feels sharper in corners and lighter when weaving through traffic. Every ride—whether a long haul or a quick jaunt—now sounds and feels richer.

I recently fitted the ZARD Slip-Ons "Avio" Exhaust on my 2019 Harley-Davidson Softail Standard, and I’m absolutely thrilled with the upgrade. Right off the bat, I noticed the difference in how light and sleek the slip-ons feel—they certainly saved some weight compared to the OEM setup. According to the product listing, the racing version trims roughly 4 kg, while the Euro 4/5 Homologated option is about 3.8 kg lighter—a tangible difference that’s easy to feel when maneuvering the bike
Installation was impressively straightforward—clear instructions and a perfect fit made it a painless DIY job. The craftsmanship is top-notch: stainless steel conical bodies, visible MIG welds, and classy end caps (with options in polished stainless or matte black Cerakote®)—all exude quality
Performance-wise, the Exhaust delivers. I opted for the racing version and indeed noticed about +1.5 hp, while the homologated version claims +1 hp—small gains that make a real-world difference in throttle response and acceleration Now each twist of the throttle feels smoother, the mid-range is stronger, and the ride overall is more responsive—without compromising comfort.

Then there's the sound. The "Avio" slip-ons deliver a rich, resonant rumble that commands attention without becoming obnoxious. It’s the perfect balance: bold, throaty, unmistakably Harley—but refined enough for longer rides. The presence is there, and the tone is just right.

A bonus I wasn’t expecting: the bike seems to run cooler, especially during longer rides. Heat dispersion feels better managed, and I’m more comfortable riding through warmer sessions—something I truly appreciate on hot Ecuadorian roads.

All in all, this upgrade exceeded my expectations. If you’re looking to boost performance, reduce weight, and dial in both looks and sound, the ZARD Slip-Ons "Avio" Exhaust is a stellar choice

I recently installed the ZARD Slip-Ons "Avio" Exhaust on my 2021 Harley Davidson Softail Standard, and the difference it has made is unbelievable. From sound to performance, this exhaust system has completely transformed my bike.

The quality of the ZARD "Avio" Slip-Ons is second to none. The aluminum finish is sleek and modern, giving my Softail Standard a custom, high-end appearance. The exhaust is solidly built and has a premium feel to it. The installation was a breeze—everything fit perfectly, and it took me less than an hour to get the system on and running. The instructions were clear, and the process was painless.

When it comes to performance, I immediately noticed the difference. The throttle response is much smoother, and the bike feels more responsive. It accelerates quicker and feels much more powerful, especially in the mid-range. The engine seems to be breathing more freely, and the improved performance makes the ride much more enjoyable.

The sound is absolutely incredible. The ZARD "Avio" Slip-Ons produce a deep, rich rumble that’s exactly what I was hoping for. It’s loud enough to make a statement but not overwhelming. The tone is perfect—not too aggressive, but still with that unmistakable Harley growl. It’s the ideal balance between power and refinement, making every ride that much more enjoyable.

Additionally, I’ve noticed that the exhaust system has helped reduce the heat. The bike seems to run cooler, especially on longer rides, which makes a big difference in comfort.

Overall, I am incredibly happy with the ZARD Slip-Ons "Avio" Exhaust for my Harley Davidson Softail Standard. It’s an excellent upgrade that enhances the bike’s sound, performance, and overall look. I highly recommend this exhaust if you’re looking for a high-quality upgrade to your Softail Standard. You won’t regret it!