GREHUA 28mm Exhaust Silencer Assembly for 50–125cc Pit & Dirt Bikes — 28mm Inlet, Heat Wrap Included

If you need a robust, ready-to-install exhaust that restores throttle response and frees up engine breath for small-displacement bikes, this GREHUA kit includes the muffler, header pipe, mounting hardware and a heat wrap so you can fit it straight away. The unit uses a 28mm inlet and a compact 45mm eye-to-eye mounting pattern; check those dimensions against your frame and manifold before buying.

Will this exhaust fit my bike model?

This muffler is made to accommodate a wide range of 50cc–125cc pit and dirt bikes. It’s compatible with many Chinese-branded machines and several common small-displacement models, but not every variant—measure to be sure.

• Intended inlet diameter: 28mm (1.1") to match many stock headers.
• Mount spacing (eye-to-eye): 45mm (1.77").
• Common compatible models: SSR110/SSR125, CRF50/CRF70-style bikes, Taotao DB10/DB14, Baja and many Apollo variants (not Apollo RFZ 125).
• Not compatible with all Hond* models—confirm fitment specifics before ordering.

What comes in the package and do I need extra parts?

The GREHUA kit arrives as a complete assembly so you won’t have to source adapters or extra brackets for most installs. It includes basic fasteners and a heat shield wrap for safe routing near plastics and frames.

• 1x exhaust muffler and 1x exhaust header pipe for a full replacement.
• Mounting hardware: metal clip and screw set included.
• Heat shield wrap supplied for lower exhaust temperatures at contact points.
• No additional accessories typically required for compatible bikes.

How durable and well-made is this GREHUA exhaust?

This assembly is constructed from metal with reinforced welds and a factory finish intended for everyday trail and pit use. It’s built to resist vibration and the rough conditions common to off-road riding, offering long-lasting service when installed correctly.

• Made from quality metal components with solid weld joints.
• Pre-fitted heat wrap included to protect surrounding parts.
• Designed as a full unit—no temporary or flimsy add-ons in the box.

Who is this for? Riders and mechanics who own small-displacement dirt, pit or mini-moto bikes and need a dependable, plug-and-play exhaust replacement will benefit from the GREHUA 28mm assembly. It’s appropriate for hobbyists updating worn stock systems, racers seeking a more free-breathing pipe for 50–125cc platforms, and fleet owners maintaining multiple Chinese-brand machines. Always verify the inlet diameter (28mm) and 45mm mount spacing against your bike’s current exhaust before purchase; if you’re unsure, send measurements or model details so the seller can confirm compatibility.