The FIT3 RS is a sports compact car with a high level of setting. Spoon has accumulated a lot of data while testing various suspension sets such as winding, street, time attack at Tsukuba circuit and super endurance race. What I found out was that the FIT3RS could not exceed the normal performance without tuning the suspension as a whole. Then, based on the huge amount of data, we developed a damper kit, a progressive spring, a stabilizer, and a rear adjusting plate in parallel, and realized steering stability and high running performance that further evolved the high total balance of STD. --- Remarks & special notes SET contents: ? FIX DAMPER KIT 51600-GK5-000 ? PROGRESSIVE SPRING 51400-GK5-001 ? STABILIZER SET 51300-GK5-000 ? REAR ADJUSTING PLATE For STREET 43250-GK5-000 Common to early and late models. Note) Lowdown may affect the operating conditions of Honda SENSING.