The CRF450L/RL Exhaust Coupler allow the fitment of the FMF Q4 or HEX on the OEM CRF450 L/RL header.
Keep your factory header and lose the heavy silencer by adding the FMF
(Note: FOR OFF ROAD USE ONLY)
Parts in stock, ready to ship.
$89.95 each, plus flat fee of $14.95 for shipping and...