Usually JPJ dont saman people for no good reasons... like plate Number & dark tints, u can still ask for a Jpj check up at their base if you dont want a summon, provide that u replace the plate number n the tints in the required times n ask them nicely...
Exhaust also JPJ dont measure using ear only.. they need to measure the noise level, usually on big roadblocks they will bring their equipment.. if not they wont bother u... but the cops r different, they just use their ears... with JPJ just make sure the piping doesnt go under the fuel tank.. unless u hv a 4 wheel fuel tank install.. but modified cars.. they usually will check whether ur motor is endorsed or not...
Exhaust also JPJ dont measure using ear only.. they need to measure the noise level, usually on big roadblocks they will bring their equipment.. if not they wont bother u... but the cops r different, they just use their ears... with JPJ just make sure the piping doesnt go under the fuel tank.. unless u hv a 4 wheel fuel tank install.. but modified cars.. they usually will check whether ur motor is endorsed or not...