имеем --- As a guide (+ 15-20 BHP = Ј75 - Ј100), air filter; (+ 30-50 BHP = Ј400 - Ј600), air filter + Performance exhaust system + spark plugs; (+ 70-80 BHP = Ј700 - Ј800) add reprofiled camshafts to what's already been listed, remembering that there are 4 cams; --- так вот , что такое J100 например .... остальное я и так понял