Hi to all sifus, In some mod magazine i read they use cat-back exhaust. What is it? What is the difference between the cat-back and normal exhaust system?
hi all sifu. can help me to differentiate the ecu for 4g93p code 0453 is mmc or svdo. i check my ecu i cant reach it and only can find this code and i google din find any about it. thank you!