Chevrolet Caprice LS 2013 Automatic Gasoline mileage: 1 KM Full custom "Al-Imtiaz" brand electronic exhaust system (was installed on a Lumina). 3-inch diameter. Ends with stock mufflers, with hidden valves before the mufflers controlled by remote. The advantage of this cat-back is that it has no back pressure, and you can accelerate even with the valves closed. The exhaust tips are hidden, so they are not visible from the rear of the car. Price: 2000 SAR