FMF
FMF Exhaust - 42399 - Header - S/S - Megabomb
Exhaust - 4 StrokeSKU 6108587
Cheapest we found
$681.95
at XPERT Moto Gear
2 recent in-stock prices · spread $11.04 (2%)
Based only on in-stock prices checked in the last 30 days. 2 stores checked; dates for every store are shown below.
Recorded store prices
Prices we recorded when we last checked each store for this exact variant.
Product details
The FMF MegaBomb Stainless Steel Header for the Kawasaki KX450F and KX450X is engineered to improve exhaust flow and increase performance across the RPM range. Designed for single-sided exhaust systems, the MegaBomb header enhances throttle response, boosts power output, and contributes to reduced sound levels while maintaining FMF's renowned durability and performance.
Features:
- MegaBomb header design
- Stainless steel construction
- Improved exhaust flow
- Increased horsepower and torque
- Enhanced throttle response
- Single exhaust configuration
Price history
Recorded changes for this exact variant.
Step chart of dated store-price observations. Solid lines show confirmed crawl coverage, dashed lines show overdue missed-check spans, and every line stops at the last confirmed price.
- 1XPERT Moto Gear3 points · last checked 22 Aug 2026
- 2MotoHeaven4 points · last checked 21 Aug 2026
Solid steps show periods confirmed by the store’s change-only price history and completed crawl record: if the price had changed at a check, another point would appear. Dashed steps show overdue periods with no completed crawl confirmation. Every line stops at that listing’s last confirmed check and is never extended to today. Prices are not live and may have changed since the last point shown.
How we collect and compare prices