integra i cut about 2 springs off on both sides of the throttle spring and it worked but i did need to reduce the throttle epa to 70% but its still goes full throttle ,but when i go to full throttle the servo keeps on buzzing its a diginal servo its that ok nothing is biding but the ball cup is a little snug not bad though but if i go any higher then 70% epa its starts to flex alot ,i have the king heads stiffer radio tray and grommets order the servo .