K&N (DNA/BMC) Air Filter + Upgrade Carb Jets Kit – Hyosung GT125R GT125
Unlock hidden performance and reliability. This isn’t just a filter replacement—it’s a complete, engineered power upgrade. We guarantee improved airflow and balanced fueling right out of the box, transforming your GT125’s throttle response.
- ✅ Performance Filter: K&N, DNA/BMC lifetime washable filter for better breathing.
- 🛠️ Uprated Jets Included: Precision Japanese jets (90F/92.5R) prevent lean running.
- ⚙️ Stainless Hardware: 8x carb bowl bolts + 4x airbox bolts included (Essential!).
- 📦 Full “Swap & Go”: No extra bits needed—everything for a perfect tune.
Description
A popular tuning combo for Hyosung 125cc carb models! This kit includes an uprated sports air filter, larger main jets, and stainless hardware—giving your GT125R or Comet better breathing, crisper throttle response, and total peace of mind during upgrades. This is a full “swap & go” bundle—no extra bits needed!
💎 Performance with the Reliability!
A stock paper filter might be cheaper, but this kit is a performance investment. The improved airflow guarantees a power increase, and the included Japanese-made jets ensure the bike runs safely (richer mix) rather than leaning out and risking engine damage. This is the complete tuning solution.
| ❗ K&N USA Discontinued! We now supply DNA (Greece) or BMC (Italy) race filters instead—both meet or exceed K&N standards and look better too!  |
| 📦 Uprated Air Filter (BMC or DNA) This is a performance drop-in filter designed for Hyosung 125cc models. These filters offer:
|
📦 Carb Upgrade Main Jets (x2) Includes precision-machined brass Keyster Japan / EBC jets—not cheap Chinese knock-offs.
These are the *exact* ideal jet sizes when increasing airflow. |
| 📦 Freebie #1: Stainless Carb Float Bowl Screws (x8) No more seized or chewed-up screws. Stronger, rust-resistant, and reusable! |
📦 Freebie #2: Stainless Air Filter Bolts (x4) Keep your airbox sealed tight and corrosion-free. These won’t rust or round off. |
📜 Confirmed Fitment Guide (Carburettor GT125 Only)
✅ FITS: Hyosung GT125RC (All Carb Years)
✅ FITS: Hyosung GT125 Naked / GT125P (All Carb Years)
OEM Reference Number: 13780HM8100
This kit is plug & play, but if you want to fine-tune your setup, our forum guides are essential reading. View the “How to swap jets” guide here or read the Needle Tuning Tutorial.
🔧 Expert Installation & Tuning Tips
- Why Jets? “More air” means you *must* add “more fuel” to prevent the engine running dangerously lean. We include the proven sizes needed for this specific filter.
- JIS Tooling: Use a proper JIS screwdriver on those carb bowl screws to avoid stripping them (a common issue!). We include the stainless freebies to ensure your next service is easier.
- Washable Filter: The DNA/BMC filters are washable and reusable for life—just clean, re-oil (lightly!), and refit.
📧 FITMENT QUESTIONS? Email us with your bike photos. For expert tuning advice, visit the HyoRiders Forums.
Additional information
| Weight | 2 kg |
|---|---|
| Dimensions | 20 × 20 × 20 cm |
1 review for K&N (DNA/BMC) Air Filter + Upgrade Carb Jets Kit – Hyosung GT125R GT125
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GARAGE PICKS // ADD TO BUILD
-
NGK LASER Iridium Spark Plugs x2 – Hyosung GT/GV 125 250 650 Models
£29.99 -
NGK Uprated HT Coil Spark Plug Cap/Covers [x2] – Hyosung GTR GT GV (Various Models)
£34.99 -
Carb Rebuild Kit (Carburetor Repair Parts) – Hyosung GT125R GT250 GV125 GV250 GT125
£19.99 -
Uprated Ignition Coil – Carby Hyosung GV125 GT125 GV250 GT125R GT250
£29.99
EXPLORE // RELATED PRODUCTS
-
Front Engine Sprocket Nut – Hyosung GV125 GT250 GT125R GV250 RT125D
£12.99 -
Anodized Magnetic Oil Filler Cap Plug Bolt – GT125R GV125 GT125 Hyosung
£9.99 -
Upgrade Regulator Rectifier [Big Heatsink] – Hyosung GT/GV 125 250 Carb Models
£34.99 -
Japan Front Rear Wheel & Sprocket Bearing Kit – Hyosung GV GT 125 250 650 & ST7
£33.99
Your Hyosung parts hub genuine & aftermarket parts + upgrades with UK & worldwide shipping.
jeanfrancois.sancho –
Nice kit ! All you need for more power.
Fast delivery in France.
Good communication with the seller !
Highly recommanded for your tiny V twin
Jeff