i have 2008 328i and i am trying to do the muffler delete and put the straight pipe than put the borla exhaust tip( which is http://www.ebay.com/itm/310390031749...84.m1423.l2649
when i tried to buy it from them, they need the size of tail pipe. do you guyz know what size is the tail pipe?? is it a about 15inches??
And also!! if i put the straight pipe instead of the muffler, is it going to be super loud?????
please let me know asap guyz! thx