Big Bottom Kit for 2024 EXC-F /XFW / FE-S / FE-W 500 / 501

 
Save $10 when you combine the new Power Intake Tube with the grunt exhaust manifold. Together they are a huge improvement in pulling power, from just right off of idle all the way to wide open.
        Requires adding fuel. with our ecu reprogramming.  The big bottom Kit is a big power increase, after opening the intake and increasing Fuel.