SPOON has been carrying out tests on all stages, including suspension and rigid parts, to promote the high dynamic performance of S660 to a deeper area and pursuing further aerodynamics in circuits such as high-speed areas , And developed the aero diffuser for S660. The shape is CFD analysis, it is simple, but the air resistance is reduced as much as possible, and downforce can be obtained by controlling the air flow on the bottom of the car body. It also contributes to improving fuel economy by reducing air resistance. - - REMARKS & SPECIAL NOTE It is non-machining bolt on because the installation is only fastening the stay to the sub frame bolt. (It can be installed even with a genuine muffler.) * When interfering with the diffuser with SPOON N1 muffler kit, muffler equipped vehicle other than genuine, insert the 3 mm spacer included between the stay and the diffuser and adjust it.