Banana-that is, exhaust banana-is the first section of the exhaust section of the engine, connecting the engine and the exhaust section. As long as it is not a single-cylinder engine, ordinary cars have exhaust plantains. See the picture: mushroom head-that is, large-flow mushroom-like intake style. Mushroom-shaped shape can supply air at all angles, which is more efficient than the general air intake system. Mushroom heads are objects that only appear on modified cars. As shown in the figure: the ejector pin, that is, the balance pull rod at the top of the front wheel shock absorber tower, is a kind of anti-roll bar for vehicles and is installed at the top of the front shock absorber tower. The main function is to enhance the rigidity of the engine room and the front body, offset the deformation of the frame caused by centrifugal lateral torsion, improve the cornering ability of the vehicle, improve the cornering speed and reduce the body roll angle caused by centrifugal force. According to different positions, there are a rear top rod (the balance tie rod at the top of the rear wheel shock absorber tower), a front bottom rod (the balance tie rod at the front bottom cross beam) and a rear bottom rod (the balance tie rod reinforced by the rear axle suspension), which have similar functions. Generally, high-performance cars and modified cars will have top bars, and ordinary vehicles need to be equipped. See the picture: fisheye-it has many meanings. The most common fisheye lamp is to add a convex lens in front of the lamp holder, so that the light shines outwards in a ring shape, forming a shadow of light in the middle of the lamp, which looks like a fish's eye from the outside, so it is called fisheye lamp. There are also fish-eye hanging seats and variable adjustable eyes at the junction of the tower top, which is a proper term for modification. Fish-eye headlights are shown in the figure; See the figure at the top of fisheye tower;