Скачать или смотреть Active Sound exhaust system Diesel project low cost, spectacular effect

it's time to be the envy of even the most expensive active sound systems, the video will excite you a lot.
I have built this project (I could develop the project in great detail but forgive me I will not give full construction process because I don't have time)
I want to give an idea that is good in practice, for those who want to do something similar and economical, I have completed the project professionally with great care and I have spectacular results, it is worth the effort, very good sound, very good driving pleasure.
the general idea is to put a speaker box, active sound instead of the metal speaker box that is for this purpose, which has a very high cost.
After much searching I found a loudspeaker box with very good specifications (CANTON Plus X Woofer: 110 mm Dimensions: 130 x 200 x 130 mm (WxHxD)) I also modified it to a Subwoofer with a loudspeaker change and various other details such as a hole for the bass.