Pit bike performance hinges on reliable exhaust systems that improve flow, deliver a deeper exhaust note, and fit a wide range of 50cc to 125cc engines. The following selections spotlight popular big-bore and full-system exhausts compatible with many Chinese and branded pit bikes. Each option emphasizes complete header-to-tailpipe assemblies, robust construction, and a sound that mimics larger dirt bikes—all while staying suitable for stock or lightly modified engines. Read on to compare key features and find a suitable upgrade for your ride.
Summary of chosen products:
- FVRITO High Performance Big Bore Muffler Exhaust Silencer Pipe Head Assembly for XR50 CRF50 and many Chinese 70cc-125cc bikes
- FVRITO High Performance Big Bore Exhaust Muffler Silencer Head Pipe Full System with Hardware for XR50 CRF50 and Chinese bikes
- YC Yier 38mm Racing Exhaust Pipe and Muffler Full System for CRF70F/CRF70/CRF110F and similar pit bikes
- FVRITO High Performance Exhaust Muffler Silencer Pipe Assembly Kit for CRF50 XR50 and various Chinese 70cc-125cc bikes
- GREHUA 28mm Exhaust Muffler Assembly for a wide range of 70cc-125cc pit bikes with heat wrap
FVRITO Big Bore Muffler Exhaust Silencer for XR50 and More
The FVRITO unit is designed as a one-piece header-to-tailpipe exhaust for a wide range of popular small-displacement pit bikes. It targets Hond*a CRF50 XR50 CRF50F and Chinese copies in the 70cc-125cc class. The system is described as a full exhaust that improves breathing and adds a deep, resonant tone comparable to larger CRF models. The removable pipe guard and a 28mm head pipe with a 45mm eye-to-eye measurement help with fitment on compatible frames. Suitable for stock or lightly modified engines, this exhaust aims to enhance performance while delivering a satisfying exhaust note.
Key features include:
– Fitment for CRF50 XR50 CRF50F and their Chinese copies in the 70cc-125cc range
– One-piece design from header to tailpipe for unrestricted flow
– Deep, resonant sound with improved performance over stock
– Removable guard: 28mm head pipe, 45mm eye-to-eye
FVRITO Full System Exhaust For XR50 And Chinese 70cc-125cc Bikes
This is a complete exhaust system that runs from the head pipe through the tail. It is designed to fit Honda CRF50 XR50 CRF70 family models and a broad list of Chinese 70cc-125cc bikes. The full-system approach helps engines breathe more freely, offering a deeper tone and potential performance gains when paired with appropriate tuning. The 28mm head pipe with a 45mm eye-to-eye dimension helps ensure compatibility with many pit-bike frames and configurations.
Important notes:
– Broad compatibility with CRF50 XR50 CRF70 XR70 and many Chinese-made copies
– One-piece exhaust from header to tailpipe for improved flow
– Deep tone similar to larger CRF models
– 28mm head pipe guard is removable to aid fitment
YC Yier 38mm Racing Exhaust Full System
The YC Yier system is marketed as a complete one-piece exhaust from head pipe to tail, aimed at CRF70F, CRF70, XR70, and 70cc-150cc pit bikes, including SSR, Apollo, and Thumpstar models. It emphasizes a deep, throaty sound on stock bikes and even more pronounced performance when engines are modified. The pipe features include a 38mm head and a long assembly designed to optimize exhaust scavenging and power delivery without extensive modification. This option is well-suited for riders seeking a robust, race-inspired sound with straightforward installation.
Highlights:
– Complete one-piece system for many CRF70XR70 SSR Apollo and other pit bikes
– Deep, resonant tone that suits stock or modified engines
– 38mm head pipe with a long exhaust run for efficient flow
– Noted for improving breathing on engines with minor modifications
FVRITO Exhaust Muffler Silencer Pipe Assembly Kit
This kit offers a full exhaust solution for CRF50 XR50 and a broad array of 70cc-125cc Chinese bikes, including SSR, Roketa, Taotao, DB14, SDG, Coolster, and more. It emphasizes a single-piece design spanning header to tailpipe, engineered to improve engine breathing and deliver a deeper tone while maintaining compatibility with many models. The included 28mm head and 45mm eye-to-eye measurements provide a consistent fit for numerous frame configurations. The kit is presented as a comprehensive upgrade that reduces compatibility concerns for pit bike owners.
Key aspects:
– Broad compatibility with CRF50 XR50 and numerous Chinese brands
– Complete header-to-tailpipe exhaust
– Deep CRF-like tone with improved performance on stock or mild-mod engines
– 28mm head pipe guard removable for fitment flexibility
GREHUA 28mm Exhaust Muffler Assembly
The GREHUA exhaust is designed for 125cc, 110cc, 90cc, and 70cc pit bikes with 28mm connection heads. It supports a broad set of brands including SSR, Taotao, Apollo, Baja, and more. The kit highlights high-quality metal construction and welding for durability, along with precise fitment to ease installation. The dimension notes—1.1″ (28mm) head diameter and 45mm eye-to-eye—are aimed at ensuring compatibility with a wide range of pit bike frames. It also includes heat wrap to help manage heat on high-performance setups.
Primary points:
– 28mm head pipe with 45mm eye-to-eye
– Compatible with many 70cc-125cc pit bikes
– High-quality metal construction with durable welding
– Includes heat wrap for heat management
HTBCCHB 28mm Exhaust Muffler Assembly With Heat Wrap
The HTBCCHB exhaust is a complete 28mm system built to fit CRF50 CRF70 XR50 70cc-125cc machines along with Taotao DB10/DB14 Baja Xpro Apollo Roketa SSR TTR SDG Coolster and similar pit bikes. The unit emphasizes a precise fit for a variety of models, with a focus on durability and installation ease. The inclusion of heat wrap is highlighted as a benefit for riders who push engines in warmer environments or with higher performance goals. This option provides a practical balance of compatibility and performance enhancement.
Accompanying notes:
– 28mm exhaust system compatible with many models
– Durable metal construction and precise welding
– Heat wrap included for heat management
– Aimed at a broad set of 50cc-125cc pit bikes
FVRITO 28mm Muffler, Silencer Pipe And Clamp Gasket
This FVRITO offering centers on a compact 28mm exhaust assembly with a silencer, suitable for 50cc, 110cc, and 125cc Chinese dirt bikes like Coolster, Venom, and Taotao. The included clamp and gasket simplify installation and help secure a tight seal to reduce leaks and improve performance. The model targets riders who want a straightforward upgrade with a familiar, deep tone while preserving reliability on stock or mildly modified engines.
Key features:
– 28mm muffler with silencer
– Compatible with a variety of 50cc-125cc pit bikes
– Includes clamp and gasket for simple installation
– Aluminum or metal construction for durability
HIAORS Pit Dirt Bike Exhaust Crush Gasket Set
The HIAORS kit provides replacement crush gaskets compatible with 50cc-150cc pit bikes from a range of brands, including SSR Razkull Tao Tao DB-14, Apollo RFZ, Piranha, Lifan, Xpro, and more. At 32×24.5x5mm, the gaskets are designed to fit a broad spectrum of exhaust assemblies, helping ensure a proper seal and consistent performance. This option is particularly useful for riders performing periodic maintenance or replacing worn components to maintain optimal exhaust flow and reliability.
Considerations for choosing an exhaust upgrade:
– Compatibility: Confirm model year, engine displacement, and frame geometry to ensure the exhaust will mount cleanly without interference.
– Full-system vs. muffler: Full systems typically offer the best flow improvements; mufflers can deliver tone and modest gains with easier installation.
– Sound level: Deeper tones are common with big-bore and full-system setups, but some riders may prefer milder or regulated sound profiles.
– Durability: Look for high-quality welding, corrosion resistance, and heat management features like heat wrap.
– Tuning needs: Some exhausts may pair with carb jetting or fuel mapping adjustments to maximize performance.
– Availability of hardware: Many kits include hardware and gaskets; verify what is included to avoid missing pieces during installation.
– Fitment notes: Some models exclude specific Honda variants (e.g., certain CRF50/CRF70 configurations)—check fitment lists carefully.
– Return and warranty: Consider vendor policies if the exhaust doesn’t meet expectations or requires adjustments.
Buying guide: pit bike exhaust considerations
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<li Engine compatibility: Most listings specify 50cc-125cc ranges; confirm your engine code (CRF50 XR50 SSR Taotao etc.) and the exact model year if possible.
<li System type: Decide between a full system (header-to-tailpipe) and a muffler-only upgrade based on your goals and budget.
<li Diameter and mounting: Common dimensions are 28mm heads and 45mm eye-to-eye; ensure these match your bike’s header and mounting points.
<li Sound profile: Expect deeper tones with big-bore and full systems; some riders may prefer a quieter setup for trail use or local regulations.
<li Durability and heat management: Look for metal quality, welding precision, and heat wrap inclusion to protect components and riders during extended rides.
<li Installation complexity: Some kits are plug-and-play; others may require additional gaskets, clamps, or minor adjustments to brackets.
<li Brand coverage: FVRITO, GREHUA, YC Yier, HTBCCHB, and HIAORS are common options; consider user reviews and warranty terms when evaluating long-term reliability.
<li Resale value: A well-chosen exhaust with a proven fitment can retain value better when upgrading or selling the bike.