Normal
When you check the halfcut that time the sound is it similar? Does the engine shake inside the chassis before conversion ?Maybe mounting also can happen.When they connect the halfcut extractor to your existing pipe, got holes or not? After 1 week of driving, jack your car up and fine for black spot along the connection.What u mean by wiring cannot do well ?No seat-belt ON ? No door open ON ?
When you check the halfcut that time the sound is it similar? Does the engine shake inside the chassis before conversion ?
Maybe mounting also can happen.
When they connect the halfcut extractor to your existing pipe, got holes or not? After 1 week of driving, jack your car up and fine for black spot along the connection.
What u mean by wiring cannot do well ?
No seat-belt ON ? No door open ON ?