well i would suggest the mugen mbx-5 wing mount. i think they look like they take alot of abuse. the tekno one looks like it would break the body posts too easy to me. other things like a tonys screw kit. if you are planning on getting semi-serious about racing maybe think about a transponder. starterboxes are always nice to have. umm not sure what your running for gearing in the tranny may want to pick up a set of close and wide ratio gear sets. you could always get the 3.3 chassis and the center diff and rear brake but i dont think its that important at your level of racing....my best advice save your money and practice. i got alot better once i just got on the track and threw down some serious laps no goofing around...lol i kno its hard to do. thats pretty much it i think