View Single Post
      04-22-2017, 10:52 AM   #1
Rimos
New Member
Rimos's Avatar
1
Rep
11
Posts

Drives: Z4 E89 35i
Join Date: Mar 2017
Location: UAE

iTrader: (0)

Custom Borla Exhaust

I am puzzled...I wanted to create my own exhaust..I wanted to keep things simple. The plan was to change the mufflers only.
after long search, I decided to get the Borla XR-1.. supposedly a race muffler,i.e. supposedly LOUD one.

I got 2 from Ebay, installed and it made the car MORE QUITE!!!

honestly, the Borla killed all the raspiness.. now though the car sounds more quite, it has a much more deeper tone-something I really like.

so after some thinking, I decided to delete the secondary cats.

this was completed recently, the sound is a bit louder however, the 2 issues below are still killing me
  • how can I further increase the sound? I am seriously considering muffler delete!!
  • The mind blowing thing is that whatever sound is coming is loudest at idle starts reducing the higher the revs. after 4.5 K the car is almos silent!!!

I need your advice guys, as this is not making sense to me, usually the higher the revs the higher the flow of gases and the louder the exhaust (am I wrong)
Appreciate 0