4G15 2-Inch Motorsport Exhaust System by Powerzone Motorsport for Proton Satria Wira Saga Iswara Extractor 4-2-1

Mitsubishi 4G15 Engine

Proton Satria

Proton Wira

Proton Saga Iswara

Included:

- 4-2-1 Stainless Steel Extractor

- Flexible Joint Type Interlock

- High Flow Center Exhaust

- S-Flow Muffler

*Piping not included

The Powerzone Motorsport Exhaust System for the Mitsubishi 4G15 Engine is designed with a calibrated gas evacuation strategy, ensuring optimal flow velocity, pulse synchronization, and scavenging efficiency without disrupting the OE volumetric efficiency map.

Technical Specifications:

🔹 4-2-1 Primary Header Design – Engineered for optimized pressure wave tuning, balancing pulse timing to maintain a consistent velocity profile, reducing negative reversion effects while enhancing mid-range scavenging.

🔹 Interlock-Type Flexible Joint – Designed for torsional load absorption, mitigating thermal expansion-induced stress propagation, preventing structural fatigue under prolonged high-heat cycling.

🔹 High Flow Center Section – Strategically tuned expansion volume to regulate mass flow continuity, ensuring a laminar transition between primary evacuation and final gas diffusion zones.

🔹 S-Flow Muffler – Pressure-diffusion architecture engineered to modulate exhaust gas harmonics, stabilizing acoustic resonance frequencies while minimizing pressure oscillations that could disrupt flow stability.

⚠ Piping not included – system is designed for integration with bespoke diameter-matched tubing to prevent flow turbulence at junction transitions.