Double wishbone suspension (DWS) for MRV/MRX- This is a revised version of MRX DWS system, bulkhead and upper arm mount is redesigned. Weight is lighter and servo saver (MRTEVO-UP01B) can be installed directly on the MRX Master edition chassis, no modification is needed.- This new version requires the revised upper arm caster mount, MRV-UP08-P1 and MRV-UP08-P2. Old version caster mount will not work.- Bulkhead and arms are made of machined aluminum (7075)- Every parameter is adjustable such as camber angle, ride height, upper arm height, camber gain, caster angle.- Package comes with 0.5-degree caster mount, optional 1.5- and 3.0-degree mount is available separately. (MRV-UP08-P1 and MRV-UP08-P2)- Quick and easy adjustment of camber angle (Steel turnbuckle included)- This is system is for experts and will require advanced car setup knowledge- Compared to single arm of SF system, DWS system will offer more and faster mid corner steering.