The modification of the Grand Prix straight oval exhaust system can increase the power of the car, with charming sound and cool appearance, meeting the personalized needs of modification enthusiasts. Replace the exhaust pipe to increase exhaust resistance and enhance engine strength. If you just want a charming sound, you just need to change the exhaust pipe to achieve the goal, such as the personalized sound of straight exhaust, the silent effect of flat drums, etc. These modification projects have no impact on the power and fuel consumption of the original car.
1. S drum external back pressure design - can increase medium and low speed torque (referred to as low torque), with fast starting, strong climbing, and low sound. About 80 decibels won't sacrifice high-speed horsepower. But there will be a slight resonance sound at high speeds, which significantly increases the horsepower at high speeds.
2. Internal Backpressure - The product is designed with specialized back pressure according to the characteristics of different vehicle models. Without losing horsepower, the Grand Prix straight oval shape can also improve the torque at medium and low speeds, with a deep sound, powerful climbing, fast acceleration, and no resonance sound regardless of the speed ratio.
3. Straight line - more suitable for running on highways and tracks for long periods of time. The sound is about 95-100 decibels, which is quite loud. The main purpose is to increase high-speed horsepower, but in general, the straight oval shape of the Grand Prix causes relatively greater damage to the low-speed torque. Some manufacturers can reduce torque damage by designing the inner wall back pressure and rear horn mouth, while still fully utilizing the effect of increasing horsepower. When driving at high speeds, the increase in horsepower is more pronounced.
4. Half back pressure - increases the torque at medium and low speeds. The sound is quite loud, around 90 decibels.
5. Elliptical flat drum (also known as M-drum), a novel elliptical drum body with multiple back pressure designs. The back pressure is further adjusted according to the speed ratio, and there is no resonance sound at high speeds. The gas flow rate is slow at low engine speeds, depending on the speed of the regulating valve. When the engine is running at high speed, the gas flow rate is fast, and according to the speed of the regulating valve, the vacuum is large, the exhaust gas is abundant, and the high-speed emission is smooth. The effect of increasing torque can also simultaneously produce the effect of increasing horsepower. (Full speed power) At high speeds, it is about 85 decibels, which is a prominent and power enhanced exhaust pipe in China according to the design concept.
