•

Our X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our 2″ head pipes, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson’s Milwaukee-Eight™ engine. Includes full coverage heat shields. 18mm and 12mm O2 sensor ports, clamps, bracket, and install hardware. MUST use Screamin’ Eagle Flat Gaskets to install properly (HD Part#17048-98). 

The 1325X Fits 2025-2026 Low Rider ST & Heritage ONLY.

Please order a 1363X if you need one for 2018 – 2024.

Thunderheader™ X-SERIES™ M8 Softail 2-In-1 Exhaust – Chrome (25' - 26')

$1,899.00

Our X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our 2″ head pipes, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson’s Milwaukee-Eight™ engine. Includes full coverage heat shields. 18mm and 12mm O2 sensor ports, clamps, bracket, and install hardware. MUST use Screamin’ Eagle Flat Gaskets to install properly (HD Part#17048-98). 

The 1325X Fits 2025-2026 Low Rider ST & Heritage ONLY.

Please order a 1363X if you need one for 2018 – 2024.
$1,899.00

Thunderheader™ X-SERIES™ M8 Softail 2-In-1 Exhaust – Chrome (25' - 26')

$1,899.00
Thunderheader™ X-SERIES™ M8 Softail 2-In-1 Exhaust – Chrome (25' - 26')

Our X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our 2″ head pipes, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson’s Milwaukee-Eight™ engine. Includes full coverage heat shields. 18mm and 12mm O2 sensor ports, clamps, bracket, and install hardware. MUST use Screamin’ Eagle Flat Gaskets to install properly (HD Part#17048-98). 

The 1325X Fits 2025-2026 Low Rider ST & Heritage ONLY.

Please order a 1363X if you need one for 2018 – 2024.

Works Great With

    • RETURN & EXCHANGE
    • YOUR NEAREST DEALER
    • E-GIFT CARD
    • MILITARY DISCOUNT