If you’re upgrading a dirt bike in the 50cc to 125cc class, a quality exhaust pipe can improve throttle response, sound, and overall performance. This guide highlights five popular aftermarket options designed for common small-displacement dirt bikes, including CRF50, Baja, SSR, Taotao and similar models. Each listed product offers a complete head-to-tail system or a durable muffler assembly aimed at enhancing airflow and durability under rugged riding conditions.
| Product | Brand | Key Benefit |
|---|---|---|
| 28mm High Performance Exhaust Muffler Silencer Pipe Assembly kit | YYCKE | Full kit with head pipe and gasket for easy installation |
| HAUERTZX 28mm Exhaust Muffler Silencer Pipe Assembly | hauertzx | Complete kit with robust welding and corrosion resistance |
| Universal 1.5-2″ Inlet Hexagon Exhaust Muffler Pipe Slip On | Fast Pro | Universal fit for a wide range of bikes with 38-51mm pipes |
| YC Yier 38mm 1.5″ Racing Exhaust System | YC Yier | One-piece exhaust system with deep, throaty sound |
| FVRITO High Performance Exhaust Muffler Silencer Head Pipe Full System | FVRITO | Complete system for many Chinese and copied bikes |
28mm High Performance Exhaust Muffler Silencer Pipe Assembly Kit
This YYCKE exhaust kit is designed for 28mm head diameter bikes, offering a full assembly that includes the muffler, head pipe, metal clips, gaskets, and a screw kit. It targets 90cc to 125cc dirt pit bikes such as CRF50, SSR, Baja, Coolster, Piranha, Pister Pro, Taotao and related models. The installation is positioned as straightforward and durable, with emphasis on a factory-like fit and enhanced appearance for a cleaner, more aggressive look on the trail.
HAUERTZX 28mm Exhaust Muffler Silencer Pipe Assembly
HAUERTZX provides a complete 28mm head and 45mm eye-to-eye muffler setup, highlighted as a high-performance modification kit. The color options (Red, Silver, Black) may help match or contrast with your bike’s appearance. The kit is marketed as durable with robust welding, designed to resist heat damage and rust on rough trails, offering a one-stop solution without needing additional accessories for many 50cc to 125cc Chinese and clone models.
Universal 1.5-2″ Inlet Hexagon Exhaust Muffler Pipe Slip On
This Fast Pro universal exhaust is designed for a wide range of dirt bikes, street bikes, scooters, and ATVs with pipe diameters between 38mm and 51mm. It provides a length of 390mm and includes the muffler and mounting hardware, but installation instructions are not included. It’s positioned as a flexible option for riders seeking a simple, off-the-shelf slip-on solution without a fully customized system.
YC Yier 38mm Racing Exhaust System
This one-piece exhaust from YC Yier covers head pipe to tail, designed to improve throttle response and overall engine breathing with engine modifications. The pipe length is 635mm with a 255mm muffler, and it’s positioned to deliver a deeper sound on smaller-displacement bikes such as 70cc to 150cc SSR, Apollo, Taotao, and other pit bikes. It claims enhanced performance while maintaining stock-like reliability on many bikes.
FVRITO High Performance Exhaust Muffler Silencer Kit
The FVRITO kit is listed as a complete one-piece exhaust system for CRF50 XR50 and a range of Chinese 70cc-125cc bikes, including SSR, Taotao, Coolster, Apollo and more. It emphasizes a deep, throaty tone and a fit for a variety of models, noting compatibility with several brands that frequently clone popular OEMs. The kit includes the head pipe, muffler, and necessary hardware for installation, making it a versatile option for riders seeking a robust upgrade.
Muffler Exhaust Assembly System for X15 X16 X18 Apollo
This RedCap muffler assembly focuses on a straightforward kit for Apollo-branded 125cc dirt bikes, including header pipe, muffler, mounting strap, and insulator strap. It’s presented as a practical upgrade that’s easy to install, with emphasis on compatibility across popular Apollo and similar Chinese dirt bikes. It’s a solid option for riders seeking a reliable muffler replacement with standard mounting hardware.
Buying Guide: Key Purchase Considerations
- Fitment and compatibility: Verify head pipe diameter (28mm, 38mm, etc.) and eye-to-eye measurements to ensure a proper match with your bike’s engine size and frame.
- Complete system vs. slip-on: Full systems can improve airflow and performance consistently, while slip-ons offer simpler installation and cost savings.
- Material and durability: Look for stainless steel or high-quality metal with corrosion resistance and robust welding to withstand heat and trail debris.
- Sound and performance: Consider whether you want a deeper, throaty tone and improved throttle response, especially for 70cc-125cc pit bikes commonly used in off-road settings.
- Installation ease: Some kits come with mounting hardware and gaskets; others require separate purchases or professional installation.
- Brand ecosystem: Reputable brands often provide better compatibility with a range of models and clearer warranty terms.
- Maintenance and replacement parts: Ensure availability of gaskets, clamps, and replacement components for ongoing upkeep.
Overall, choosing the right dirt bike exhaust pipe depends on your engine displacement, bike model, and riding style. For 50cc to 125cc bikes commonly used in youth and beginner motocross, a complete head-to-tail system from a recognized brand tends to offer the best combination of performance gains, durability, and install ease. If you aim for a quick upgrade or a compatibility with multiple bikes, a universal slip-on may suit your needs, though it might not deliver the same breathing improvements as a dedicated system.