Normally sound accs shop will have contact, you can check with them... Many people will mod/upgrade proton car, other brand need to rely on technician's skill...
But why you wanna increase amp output? ICE modding?
When most would celebrate last weekend with the F1 fever, the guys in Penang have their own ways of celebrating it. They had one of the largest car gathering in the country, featuring modified daily run cars. 23 car clubs have given their support in the event and many participants came from around Malaysia, largely from Johor Bahru, Kuala Lumpur, Penang, Ipoh and...
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