4S1M THROTTLE BODY M3 32MM

Here is a high-performance product description for the 4S1M (60s 1 Minute) Racing Throttle Body (32mm) designed for the Yamaha Mio I 125 / Mio M3:

4S1M High-Performance Throttle Body (32mm) for Yamaha Mio M3 / Mio i 125

Unlock the full potential of your Yamaha Mio M3 with the 4S1M 32mm Performance Throttle Body. Specifically engineered for daily tuning and modified engine setups (ideal for bore-up engines like 59mm and up), this throttle body dramatically maximizes air intake to deliver aggressive acceleration and higher top-end power.

When your stock throttle body leaves you bottlenecked, 4S1M provides the precision airflow your fuel-injected engine craves.

### Key Features

• 32mm Oversized Bore: Substantially larger than the stock diameter to allow a massive rush of air into the combustion chamber, ensuring a sharper, more responsive throttle feel.

• Premium Machined Construction: Crafted from high-grade aluminum alloy to resist intense engine heat and vibration while maintaining perfect structural tolerance.

• Flawless Fuel-Injection Compliance: Precision-engineered to house your stock sensors (TPS) seamlessly, allowing your ECU to read data cleanly without standard hesitation issues.

• Optimized Fuel Atomization: Works hand-in-hand with higher flow injectors to create an ideal air-fuel mixture, translating to instant torque off the line.

### Product Specifications

### Why Choose 4S1M?

The Tuning Advantage: For Fuel Injected (FI) scooters like the Mio M3, more air equals more power. Upgrading to a 32mm throttle body prevents the engine from starving at higher RPMs. Whether you’re daily commuting or building a touring machine, 4S1M delivers reliable, track-tested performance without compromising durability.

Note: For maximum performance gains, pairing this throttle body with an upgraded fuel injector and a proper ECU tuning/remap is highly recommended.