T-Works power boost backplate for OS .21
T-Works have announced their new power boost backplate for O.S. Speed .21 engines. The power boost backplate is designed to increase mid to high range power while also increasing fuel efficiency and quicker return to idling. It can be used with both off-road and on-road engines and is a simple bolt on replacement for the standard part.
Source: T-Works [rc-tworks.com]