View Single Post
      03-02-2013, 07:05 PM   #22

Drives: AW 135i
Join Date: Aug 2012
Location: Waterford, Mi

iTrader: (2)

Garage List
2008 BMW 135i  [2.83]
Originally Posted by MteK View Post
How is it terrible for performance? It already looks more free flowing then oem and the long pipe would take away what, .25 hp at the most?

This could be a good solution for anyone doing a 1m conversion that does not want to mess around with the whole battery tray conversion.
The 90 degree angles are really harsh on flow, the piping size is not ideal for best flow characteristics. The exhaust doesn't even use the inner two pipes of the four. 90% of the air would go out the outer tips because the air would never be able to make that turn with the velocity it'd be traveling at. Its all for looks.