Description
FMF Q4 Hex Slip On Exhaust For 00-25 DRZ400
- Developed over years of championship off-road racing
- Max sound output 96db; most models below 93db
- Pounds lighter than stock
- Use with stock or FMF header
- Built-in spark arrestor included
- Easy to repack
- Not legal for use in California on pollution controlled vehicles, race use only in California - waiver available
Fits
00-25 DRZ400
Materials: Aerospace-grade/aircraft-grade aluminum canister body with a natural/silver finish, complemented by a high-strength stainless steel midpipe and end cap.
Weight: Weighs approximately 6.9 lbs (varies slightly by sub-model generation), which is several pounds lighter than the heavy stock OEM exhaust system.
Sound Output: Maximum sound output is rated at 96 dB (with most configurations running well under 93 dB), meeting USFS and FIM World Enduro sound regulations.
Spark Arrestor: Includes a built-in, removable screen-type spark arrestor for legal off-road and trail riding.
Internal Design: Utilizes intricate chambers, internal baffles, and proprietary multi-stage packing material to maximize exhaust flow while keeping noise levels low.
Carburetor / Fuel Note: While the slip-on can technically run on stock jetting, installing a performance exhaust typically alters backpressure and can cause a lean condition, meaning a jet kit or fuel screw adjustment is often recommended for optimal running.

