Description
Yoshimura RS-4 Full System Dual Exhaust For DRZ400
- Pentagonal-shaped muffler
- Maximized internal volume
- Polyresonant duplex front chamber
- Stepped, two-stage core baffle
- Spark Arrestor/Sound Insert Compatible
Fits
00-26 DRZ400
- System Type: Complete full exhaust system (Includes 2-to-1 header and twin mufflers).
- Exhaust Pipe Count: Twin / Dual layout.
- Muffler Shape: Pentagonal-shaped sleeve to optimize internal volume and maximize ground clearance.
- Design Origin: Hand-fabricated, TIG-welded design inspired by racing legend Kevin Schwantz.
Material Composition
- Header Pipe: High-grade Stainless Steel.
- Y-Pipe & Tail Pipes: Stainless Steel.
- Muffler Sleeves: Aluminum.
- Muffler End-Caps: Carbon Fiber with a turn-out / slash-cut style.
Internal Performance Tech
- Front Muffler Chamber: Polyresonant Duplex front chamber (functions as a mechanical baffle to mitigate negative exhaust pulses and lower decibels before the gases hit the main core).
- Baffle Type: Two-stage, stepped core baffle for enhanced power response across the RPM range.
- Spark Arrestor: Compatible (Available separately; does not come pre-installed in the default box layout).
Dimensions & Weight Metrics
- Main Piping Diameter: 2.75 inches.
- Shipping/Package Weight: 25.70 lbs.