Originally Posted by THE TECH
The reason I wouldn't do this mod is cause even though you get increased noise, you are still stuck with the ugly stock exhaust. Also, good luck if you ever want/need to go back to stock.
Im ok with that. Spending 2k+ on a heavy duty exhaust to only impress bmw enthusiasts is not my cup of tea.
Spend a couple hundred to emulate te sound of a good exhaust is well worth it, might be ugly, but its hidden under the car.