i Currenlty have a full stainless 4-2-1 de-cat system on my vts. had my MOT this week a put the cat back on a noticed a massive gain in power. i put my vts up against my pals vts that has the same exhaust. before the cat was put back on both the cars were practicly the same. but we went for a drive yesterday and with the cat on he couldnt touch me and i could easy pull past him.
any ideas why this is as i thought it would be more choked up and less power full. so i am now looking for a exhaust system that will give me the best power gains and good value for money.
any ideas why this is as i thought it would be more choked up and less power full. so i am now looking for a exhaust system that will give me the best power gains and good value for money.
