Updated for 2026 — This article has been reviewed and updated with the latest recommendations.
The stock exhaust on most modern motorcycles is designed to meet noise regulations, pass emissions tests, and cost the manufacturer as little as possible. It does all three jobs well. What it does not do is sound particularly good. That muffled, restrained note is functional but uninspiring, and for a lot of riders, the exhaust note is a big part of why they ride in the first place.
An aftermarket exhaust changes the character of your motorcycle.
It opens up the sound, often adds a few horsepower, and drops weight. Here is how to pick the right one.
Slip-On vs Full System
A slip-on replaces just the muffler while keeping the stock headers. This is the simplest upgrade. You unbolt the stock muffler, slide on the new one, and you are done. Installation takes 30 minutes to an hour on most bikes. A slip-on changes the sound noticeably and drops some weight, but the performance gains are modest.
A full system replaces everything from the headers back.
This is where the real performance gains live. Removing the stock catalytic converter and replacing the narrow stock headers with larger-diameter aftermarket pipes frees up exhaust flow significantly. Full systems typically gain 5 to 15 horsepower on sport bikes. They also require an ECU flash or fuel controller to avoid running lean.
Best Slip-On Exhausts
Akrapovic Slip-On Line (Titanium)
Akrapovic is the gold standard for aftermarket motorcycle exhausts.
Their slip-on line uses a titanium outer sleeve with a stainless steel inner and produces a deep, refined growl that is louder than stock without being obnoxious. The sound quality is what sets Akrapovic apart. Where cheaper exhausts can sound tinny or raspy, the Akrapovic manages to be loud and pleasant at the same time.
Weight savings are substantial because titanium is significantly lighter than the stock steel muffler.
Fitment is excellent because Akrapovic makes bike-specific slip-ons. Price runs 500 to 800 dollars depending on the bike.
Yoshimura Alpha T Slip-On
Yoshimura is an American company with deep roots in motorcycle racing. The Alpha T is their flagship slip-on, available in stainless steel or titanium with a carbon fiber end cap. The sound is aggressive and sporty, with a sharper bark than the Akrapovic. On inline-four sportbikes, the Yoshimura produces that classic high-rpm scream that sounds like it belongs on a racetrack.
Build quality is right up there with Akrapovic.
The welds are clean, the finish is flawless, and fitment is precise. Pricing runs 400 to 700 dollars.
Two Brothers S1R Slip-On
Two Brothers offers a more budget-friendly option that still sounds and looks great. The S1R uses a black aluminum canister with a carbon fiber end cap. The sound is deep and throaty on twins and rumbly on four-cylinder bikes.
It includes a removable USFS-approved spark arrestor. At around 300 to 450 dollars, the S1R is the sweet spot for riders who want a noticeable sound improvement without spending Akrapovic money.
Best Full Exhaust Systems
Akrapovic Racing Line (Full System)
The Racing Line full system replaces everything from the headers back with mandrel-bent stainless steel or titanium pipes and an Akrapovic muffler.
On a 600cc sport bike, expect gains of 8 to 12 horsepower at peak. Weight savings are impressive, often 10 to 15 pounds. Pricing runs 1,000 to 2,000 dollars.
Yoshimura R-77 Full System
Yoshimura's R-77 full system uses stainless steel headers with a large-bore canister available in stainless, titanium, or carbon fiber. The sound is aggressive and race-inspired.
Performance gains are comparable to the Akrapovic, typically 8 to 14 horsepower. Pricing runs 900 to 1,800 dollars.
Things to Consider
Noise Levels
A louder exhaust is not always better. Extremely loud pipes annoy neighbors, attract police attention, and can make long rides fatiguing. Many aftermarket exhausts include a removable dB killer (baffle) that lets you adjust the noise level. Leave it in for daily riding and pull it out for track days.
Legal and Emissions Issues
Removing the catalytic converter is illegal for road use in many jurisdictions. Slip-ons that retain the stock cat are generally legal. Full systems that remove the cat may not pass emissions inspections. Check your local laws before committing to a full system.
Tuning Requirements
Slip-ons rarely require retuning. The change in back pressure is minor enough that the stock ECU can compensate. Full systems almost always benefit from a retune or fuel controller. Running a full system without adjusting the fueling can result in a lean condition, which reduces power and increases engine heat. Budget 200 to 400 dollars for an ECU flash from a reputable tuner.
The exhaust is one of the most impactful modifications you can make to a motorcycle. Start with a quality slip-on if you want better sound with minimal fuss. Move to a full system if you want real performance gains along with the soundtrack. Either way, pick a reputable brand with good fitment for your specific bike, and your riding experience will improve every time you crack the throttle.
