After fitting the ZARD Full Kit 2:1 on my 2019 Road Glide ST, I've rediscovered what excitement feels like on two wheels.
Highly recommended to any Road Glide ST owner who wants their bike to feel alive again.

I recently installed the ZARD Full Kit 2:1 on my 2020 Road Glide ST, and the result has been nothing short of remarkable.

Installation & Build Quality
The kit arrived beautifully packaged, and I was immediately impressed by the premium AISI 304 stainless steel construction. The understated elegance of the satin finish and the sleek black anodized aluminum end cap give my bike a standout look without being gaudy.
Performance & Weight Savings
This exhaust drastically reduced the bike’s weight—dropping the original setup by about 9.5 kg in the racing version and still a significant 9.3 kg for the homologated Euro 4/5 version, compared to OEM
On the dyno, I measured a +4 horsepower gain with the racing setup. If you opt for the homologated version, expect a respectable +2.1 hp increase, great if you're emissions-conscious.
Ride Feel & Sound
With the weight shed, the bike feels noticeably more agile—in corners, it responds with sharper precision. The sound signature is equally captivating: it has that deep, aggressive 2:1 rumble that commands attention—sonorous but never deafening.

Aesthetic Fit & Finishes
ZARD’s Centro Stile delivered with design details—headers that align perfectly and finishes in satin, matte black Cerakote®, or polished variants This blend of form and function elevates both the visual and visceral experience of riding.

Overall Verdict
The ZARD Full Kit 2:1 is more than just an exhaust—it’s a comprehensive performance upgrade that looks, sounds, and rides like a champion. Whether you're aiming for peak power or refined compliance, the choice between racing and homologated versions allows for tailored performance.

I couldn’t be happier with the ZARD Full Kit 2:1 for my 2021 Road Glide ST. Right out of the box, this kit impressed me with its substantial craftsmanship—meticulously formed from premium AISI 304 stainless steel. The finish options—satin, matte black Cerakote®, or polished—allowed me to perfectly match my bike’s aesthetic without compromising durability
Installation was smooth. I instantly felt the difference on the scales: the racing version sheds roughly 9.5 kg, and even the homologated version manages about 9.3 kg of weight savings, compared to the OEM kit. That reduction made the bike noticeably more nimble and immediately reflected in how it handled during spirited riding.

On the performance side, the racing variant delivered a tangible +4 hp boost, while the homologated Euro 4/5 option still grants a respectable +2.1 hp gain. I opted for the homologated version since I commute regularly and wanted to stay within emissions compliance—plus, that modest power bump is still palpable and fun.

Sound-wise, the deep, throaty tone of the 2:1 design brings an unmistakable sporty growl—deep enough to feel aggressive but not obnoxiously loud. Not too overpowering, yet plenty of character.

All in all, this ZARD kit transforms the riding experience of the Road Glide ST with significant weight savings, a sleek design, and enhanced performance. It’s a premium upgrade that delivers real, perceivable results.

I recently upgraded my 2021 Harley Davidson Road Glide ST with the ZARD Full Kit 2:1 Exhaust, and I’m absolutely blown away by the difference it has made in every aspect of my bike. From the increased power to the incredible sound, this exhaust system has exceeded all my expectations.

The ZARD Full Kit 2:1 Exhaust is built with high-quality materials that are immediately evident when you first see it. The chrome finish is flawless, and the craftsmanship is impressive. The design adds a custom, aggressive look to my Road Glide ST, making it stand out even more on the road. The fitment was perfect, and installation was smooth. The instructions were easy to follow, and I had the exhaust system installed within an hour.

When it comes to performance, this exhaust has made a noticeable improvement. The bike feels more responsive, especially when I twist the throttle. The low-end torque is significantly better, making acceleration more immediate and powerful. The exhaust lets the engine breathe more efficiently, which has translated into quicker acceleration and better overall performance. Whether I’m cruising through town or opening it up on the highway, the bike feels more dynamic and connected.

The sound is absolutely amazing. The ZARD Full Kit 2:1 Exhaust delivers a deep, throaty growl that is exactly what I was looking for. It’s loud enough to turn heads, but it’s not obnoxious or uncomfortable for long rides. The tone is rich and resonant, with that classic Harley rumble that just sounds perfect. Every time I start the bike, I can’t help but smile—it’s music to my ears.

Additionally, I’ve noticed that the bike runs cooler now, especially on long rides. The exhaust has helped reduce the heat that radiates onto my leg, making the ride much more comfortable, especially during summer months.

Overall, I couldn’t be happier with the ZARD Full Kit 2:1 Exhaust for my Harley Davidson Road Glide ST. It’s a premium upgrade that significantly improves the performance, sound, and comfort of my bike. If you’re looking for an exhaust system that delivers on all fronts, this is definitely the one to go for. Highly recommended!

I recently upgraded my 2022 Harley Davidson Road Glide ST with the ZARD Full Kit 2:1 Exhaust, and I am thoroughly impressed with the improvement in both sound and performance. This exhaust has completely transformed my bike and made it feel like a whole new machine.

The first thing that stands out is the ZARD Full Kit 2:1 Exhaust’s build quality. The finish is flawless, and the chrome looks amazing. The materials used are of the highest quality, and you can tell that this is a premium product designed to last. It gives my Road Glide ST a custom, aggressive look that really stands out on the road. Installation was straightforward. The fitment was perfect, and I had the exhaust installed in about an hour with the help of clear instructions.

Performance-wise, the difference was immediately noticeable. The throttle response is much smoother, and the bike feels more responsive overall. There is a significant improvement in low-end torque, which makes acceleration feel more immediate and powerful. The power delivery is now more consistent across the entire RPM range, and the bike just feels more alive. The exhaust system really lets the engine breathe more freely, which has made it much more fun to ride.

The sound is where the ZARD Full Kit 2:1 Exhaust truly excels. It delivers a deep, throaty rumble that’s exactly what I was looking for. The tone is rich, aggressive, and unmistakably Harley, but it’s not so loud that it becomes uncomfortable on long rides. It’s the perfect balance between being loud enough to be noticed, but not overwhelming. Every time I fire up the bike, I can’t help but smile—there’s nothing like that iconic Harley growl.

Additionally, I’ve noticed that the bike runs cooler. The heat from the exhaust is reduced, which makes longer rides much more comfortable. I no longer feel the heat radiating onto my leg, which was something that bothered me with the stock exhaust.

Overall, I’m extremely happy with the ZARD Full Kit 2:1 Exhaust for my Harley Davidson Road Glide ST. It’s a premium upgrade that significantly enhances the sound, performance, and comfort of the bike. If you’re looking for an exhaust that delivers on all fronts, I highly recommend this one!